In this video you will learn 35 varieties of regression equations which includes but not limited to - Simple Linear Regression -Multiple Linear Regression -Logistic Regression -Probit regression -Cox regression -Non Linear Regression -Polynomial Regression Lasso regression Ridge Regression Bayesian Regression ANalytics Study Pack : http://analyticuniversity.com/ Analytics University on Twitter : https://twitter.com/AnalyticsUniver Analytics University on Facebook : https://www.facebook.com/AnalyticsUniversity Logistic Regression in R: https://goo.gl/S7DkRy Logistic Regression in SAS: https://goo.gl/S7DkRy Logistic Regression Theory: https://goo.gl/PbGv1h Time Series Theory : https://goo.gl/54vaDk Time ARIMA Model in R : https://goo.gl/UcPNWx Survival Model : https://goo.gl/nz5kgu Data Science Career : https://goo.gl/Ca9z6r Machine Learning : https://goo.gl/giqqmx Data Science Case Study : https://goo.gl/KzY5Iu Big Data & Hadoop & Spark: https://goo.gl/ZTmHOA
Views: 5382 Analytics University
In this video you'll learn the hierarchical representation of Regression Models. Regression models are primarily classified into 2 categories: - Univariate - Multivariate Univariate Regression model is the simplest form of statistical analysis Multivariate Regression model is where the response variable is affected by more than one predictor variable. They can be further classified as Liner and Non-Linear models. You will also learn about "Simple Linear Regression" Click Here For More Details: www.simplilearn.com/big-data-and-analytics/business-analytics-foundation-r-tools-training
Views: 5276 Simplilearn
This updated vidcast discusses the conceptual underpinnings of different types of model building in multiple analysis: simultaneous regression, hierarchical regression and stepwise regression. This improved vidcast offers clearer exposition of the concepts and a more readable Powerpoint slide.
Views: 10571 Ray Cooksey
Very basic overview of the different types of regression analysis and why regression analysis is needed. This is not for statisticians but for medical students, residents and clinicians wanting a very basic overview of what regression analysis is.
Views: 11206 Terry Shaneyfelt
The most simple and easiest intuitive explanation of regression analysis. Check out this step-by-step explanation of the key concepts of regression analysis. It is assumed the viewer has little background in statistics. This lecture is suitable for tertiary students struggling with statistics. **** Are you a business that needs some help data analytics? Contact me at www.taleum.co I provide technical consulting and training seminars. **** DID YOU LIKE THIS VIDEO? **** Check out my full video on Simple Regressions: https://www.youtube.com/watch?v=38iNlkzF1sE *** Come and check out my complete and comprehensive course on HYPOTHESIS TESTING! Click on the link below for a FREE PREVIEW and a MASSIVE discount (only for my Youtube students): https://www.udemy.com/simplestats/?couponCode=123 This is a complete course that covers all the topics (such as the central limit theorem, p-values, hypothesis tests using proportions, and so much more) in a structured, step-by-step manner, coupled with a bucket load of practice exam questions and video worked solutions. I assume the viewer has zero background in statistics. You also get to post questions in the discussion forum and I will answer them right away! https://www.udemy.com/simplestats/?couponCode=123 **** SUBSCRIBE at: https://www.youtube.com/subscription_center?add_user=quantconceptsedu **** Check out some of our other mini-lectures: Check out my 30 min lecture on Hypothesis Testing! https://www.youtube.com/watch?v=lCuB2nEaBwM Simple Introduction to Hypothesis Testing: http://www.youtube.com/watch?v=yTczWL7qJ-Y A Simple Rule to Correctly Setting Up the Null and Alternate Hypotheses: https://www.youtube.com/watch?v=R2hxisYFKxM&feature=youtu.be The Easiest Introduction to Regression Analysis: http://www.youtube.com/watch?v=k_OB1tWX9PM Super Easy Tutorial on Calculating the Probability of a Type 2 Error: https://www.youtube.com/watch?v=L9rX8kTd8PI&feature=youtu.be Check out my latest Youtube video on the Endogeneity Bias and the 2-Stage Least Squares regression: https://www.youtube.com/watch?v=HBr3376ttOg ** Keywords: statistics, statistics help, statistics tutor, statistics tuition, hypothesis testing, regression analysis, university help, stats help, simple regression, multiple regression, econometrics
Views: 386169 Dave Your Tutor
Hello Friends, By considering all your valuable comments, I am advancing topic of “Nonlinear Regression” in this video, mainly comments from the video on “Correlation and Regression”. This video is mainly focused on Regression analysis, it’s types and Nonlinear Regression in very detailed along with practical example. Nonlinear Regression analysis is used to mathematically describe the nonlinear relationship between a response variable and one or more predictor variables. Specifically, use nonlinear regression instead of “ordinary least squares regression” when you cannot adequately model the relationship with linear parameters. I am going to explain this tool with practical example for easy understanding and better clarity. This video contains following topics: 1) What is Regression Analysis and their types? 2) Brief explanation all types of Regression Analysis methods 3) When to use Nonlinear Regression Analysis? 4) Data considerations for Nonlinear Regression 5) Nonlinear Regression Analysis with Practical Example in Microsoft Excel 6) Interpretation of results from Regression analysis including R-Square, Significance F and p-values, Coefficients, Residuals and Best Fit Model for Nonlinear Regression I am sure, you will like it. Please add your valuable comments and tell me where you are using these tools & techniques and your experiences during practical application. Apart from this video, please visit to my website by clicking on this link below. We will be there to remove roadblocks in your success by designing and delivering training as per your need and hand-holding support in execution of Lean and Six Sigma initiatives- https://www.learnandapply.org/ I have also created recommendation page on this website to avail you a great knowledge to improve your personal as well as professional life. You can visit this link to review it. https://www.learnandapply.org/recommondations And finally thank you for watching…
Views: 311 LEARN & APPLY: Lean & Six Sigma
Today we're going to introduce one of the most flexible statistical tools - the General Linear Model (or GLM). GLMs allow us to create many different models to help describe the world - you see them a lot in science, economics, and politics. Today we're going to build a hypothetical model to look at the relationship between likes and comments on a trending YouTube video using the Regression Model. We'll be introducing other popular models over the next few episodes. Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse Thanks to the following Patrons for their generous monthly contributions that help keep Crash Course free for everyone forever: Mark Brouwer, Kenneth F Penttinen, Trevin Beattie, Satya Ridhima Parvathaneni, Erika & Alexa Saur, Glenn Elliott, Justin Zingsheim, Jessica Wode, Eric Prestemon, Kathrin Benoit, Tom Trval, Jason Saslow, Nathan Taylor, Brian Thomas Gossett, Khaled El Shalakany, Indika Siriwardena, SR Foxley, Sam Ferguson, Yasenia Cruz, Eric Koslow, Caleb Weeks, D.A. Noe, Shawn Arnold, Malcolm Callis, Advait Shinde, William McGraw, Andrei Krishkevich, Rachel Bright, Mayumi Maeda, Kathy & Tim Philip, Jirat, Ian Dundore -- Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support Crash Course on Patreon: http://patreon.com/crashcourse CC Kids: http://www.youtube.com/crashcoursekids
Views: 81995 CrashCourse
Supervised and unsupervised learning algorithms
Views: 71421 Nathan Kutz
We can use scatter plots to understand the relationships between variables, but it is applied only for obvious relationships like Temperature and Viscosity. Sometimes, it is not possible to comment about relationship between variables only looking at the graph. “CORRELATION & REGRESSION” are very important mathematical concepts to define relationship between variables. This is the topic for video. I have tried to explain these concepts with the help of practical examples which will be very easy to understand. I have also explained the procedure about how to create a “CORRELATION & REGRESSION ANALYSIS” in Microsoft Excel. Everything is with steps, snapshots and examples, which will be very easy to understand. I have also covered statistics part like how to read and understand “SIGNIFICANCE F and P-values” I am sure, you will liked it. Apart from this video, please visit to my website by clicking on this link and if you think, we can support you in achieving your goals, please feel free to contact us. We will guarantee your success by designing and delivering training as per your need and hand-holding support in execution of Lean, Six Sigma & Personality Development initiatives- https://www.learnandapply.org/ I have also created recommendation page on this website to avail you a great knowledge to improve your personal as well as professional life. You can visit this link to review it. https://www.learnandapply.org/recommondations And finally thank you for watching…
Views: 232001 LEARN & APPLY: Lean & Six Sigma
This video discusses what are dummy variables, how do we construct them, and how do we interpret their coefficients in a multiple or multivariate linear regression. TABLE OF CONTENTS: 00:00 Introduction 00:10 Continuous vs. Categorical Variables 01:48 The Problem with Categorical Variables 02:52 Dummy Variables: Representing Categories 03:48 Data for Example: Professors’ Salaries 05:27 Exploring the Data 08:48 Representing Two Categories: Qualification 09:39 Data Table with Professional Dummy 10:02 Regressing Salary on Qualification 11:50 Comparing Salaries by Qualification 13:02 Qualification Regression Result 13:44 Interpreting the Coefficients for Qualification 14:45 More than Two Categories: Rank 15:43 Regressing Salary on Ranks 17:52 Data Table with Rank Dummies 18:19 Rank Regression Result 18:48 Interpreting the Coefficients for Qualification 21:14 Rank Regression Result (excluding assistant) 22:45 How do we interpret these?
Views: 114764 dataminingincae
Subscribe to the OpenIntroOrg channel to stay up-to-date! This video was created by OpenIntro (openintro.org) and provides an overview of the content in Section 7.3 of OpenIntro Statistics, which is a free online statistics textbook with a $10 paperback option on Amazon. This video covers the types of outliers that can be encountered in linear regression. For more details, see Section 7.3 of OpenIntro Statistics, which may be downloaded for free online.
Views: 9503 OpenIntroOrg
Seven different statistical tests and a process by which you can decide which to use. The tests are: Test for a mean, test for a proportion, difference of proportions, difference of two means - independent samples, difference of two means - paired, chi-squared test for independence and regression. This video draws together videos about Helen, her brother, Luke and the choconutties. There is a sequel to give more practice choosing and illustrations of the different types of test with hypotheses.
Views: 789304 Dr Nic's Maths and Stats
In this lecture, I show which types of statistical models should be used when; the most important decision concerns the explanatory variables: When these are continuous, the analysis type will be regression; however, when these are factors, then we will conduct an analysis of variance. Overall, I show that both analyses are special examples of what is called a Linear Statistical Model. I briefly introduce linear statistical models. Later lectures will cover this in greater detail.
Views: 42131 Christoph Scherber
Students get mixed up in the language of significance tests for regression because there's more than one type. Whatever econometrics/stats package you are using, Stata, Eviews, R, SPSS, SAS, Minitab - even crummy old Excel, watch this video if you are unsure about what testing the significance of ....means.
Views: 11174 Phil Chan
This video demonstrates how to interpret multiple regression output in SPSS. This example includes two predictor variables and one outcome variable. Unstandardized and standardized coefficients are reviewed.
Views: 165921 Dr. Todd Grande
Basic introduction to correlation - how to interpret correlation coefficient, and how to chose the right type of correlation measure for your situation. 0:00 Introduction to bivariate correlation 2:20 Why does SPSS provide more than one measure for correlation? 3:26 Example 1: Pearson correlation 7:54 Example 2: Spearman (rhp), Kendall's tau-b 15:26 Example 3: correlation matrix I could make this video real quick and just show you Pearson's correlation coefficient, which is commonly taught in a introductory stats course. However, the Pearson's correlation IS NOT always applicable as it depends on whether your data satisfies certain conditions. So to do correlation analysis, it's better I bring together all the types of measures of correlation given in SPSS in one presentation. Watch correlation and regression: https://youtu.be/tDxeR6JT6nM ------------------------- Correlation of 2 rodinal variables, non monotonic This question has been asked a few times, so I will make a video on it. But to answer your question, monotonic means in one direction. I suggest you plot the 2 variables and you'll see whether or not there is a monotonic relationship there. If there is a little non-monotonic relationship then Spearman is still fine. Remember we are measuring the TENDENCY for the 2 variables to move up-up/down-down/up-down together. If you have strong non-monotonic shape in the plot ie. a curve then you could abandon correlation and do a chi-square test of association - this is the "correlation" for qualitative variables. And since your 2 variables are ordinal, they are qualitative. Good luck
Views: 524792 Phil Chan
Here, I quickly explain to you what classification, regression, and clustering are all about.
Views: 100 Shriram Vasudevan
Understanding why correlation does not imply causality (even though many in the press and some researchers often imply otherwise) Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/probability/statistical-studies/types-of-studies/e/types-of-statistical-studies?utm_source=YT&utm_medium=Desc&utm_campaign=ProbabilityandStatistics Watch the next lesson: https://www.khanacademy.org/math/probability/statistical-studies/types-of-studies/v/analyzing-statistical-study?utm_source=YT&utm_medium=Desc&utm_campaign=ProbabilityandStatistics Missed the previous lesson? https://www.khanacademy.org/math/probability/statistical-studies/types-of-studies/v/types-statistical-studies?utm_source=YT&utm_medium=Desc&utm_campaign=ProbabilityandStatistics Probability and statistics on Khan Academy: We dare you to go through a day in which you never consider or use probability. Did you check the weather forecast? Busted! Did you decide to go through the drive through lane vs walk in? Busted again! We are constantly creating hypotheses, making predictions, testing, and analyzing. Our lives are full of probabilities! Statistics is related to probability because much of the data we use when determining probable outcomes comes from our understanding of statistics. In these tutorials, we will cover a range of topics, some which include: independent events, dependent probability, combinatorics, hypothesis testing, descriptive statistics, random variables, probability distributions, regression, and inferential statistics. So buckle up and hop on for a wild ride. We bet you're going to be challenged AND love it! About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content. For free. For everyone. Forever. #YouCanLearnAnything Subscribe to KhanAcademy’s Probability and Statistics channel: https://www.youtube.com/channel/UCRXuOXLW3LcQLWvxbZiIZ0w?sub_confirmation=1 Subscribe to KhanAcademy: https://www.youtube.com/subscription_center?add_user=khanacademy
Views: 678803 Khan Academy
Everyone needs to understand regression! Its a useful data science technique that allows us to understand the relationship between different variables. In this video, we'll play the role of a newly hired data analyst at a genetics company trying to find the relationship between advertising mediums (TV, newspaper, radio) and ticket sales to our newly opened theme park. Along the way, we'll learn about 5 types of regression models (linear, non-linear, multiple, lasso, and ridge). Expect math, code, and layers of explanation. Enjoy! Code for this video: https://github.com/llSourcell/ISL-Ridge-Lasso Please Subscribe! And Like. And comment. Thats what keeps me going. Want more education? Connect with me here: Twitter: https://twitter.com/sirajraval instagram: https://www.instagram.com/sirajraval Facebook: https://www.facebook.com/sirajology More learning resources: https://www.youtube.com/watch?v=XdM6ER7zTLk https://www.analyticsvidhya.com/blog/2017/06/a-comprehensive-guide-for-linear-ridge-and-lasso-regression/ http://statisticsbyjim.com/regression/choose-linear-nonlinear-regression/ https://hbr.org/2015/11/a-refresher-on-regression-analysis http://blog.minitab.com/blog/adventures-in-statistics-2/how-to-interpret-regression-analysis-results-p-values-and-coefficients Join us at the School of AI: https://theschool.ai/ Join us in the Wizards Slack channel: http://wizards.herokuapp.com/ Please support me on Patreon: https://www.patreon.com/user?u=3191693 Signup for my newsletter for exciting updates in the field of AI: https://goo.gl/FZzJ5w Hit the Join button above to sign up to become a member of my channel for access to exclusive content!
Views: 26115 Siraj Raval
This video is on Panel Data Analysis. Panel data has features of both Time series data and Cross section data. You can use panel data regression to analyse such data, We will use Fixed Effect Panel data regression and Random Effect panel data regression to analyse panel data. We will also compare with Pooled OLS , Between effect & first difference estimation For Analytics study packs visit : https://analyticuniversity.com Time Series Video : https://www.youtube.com/watch?v=Aw77aMLj9uM&t=2386s Logistic Regression using SAS: https://www.youtube.com/watch?v=vkzXa0betZg&t=7s Logistic Regression using R : https://www.youtube.com/watch?v=nubin7hq4-s&t=36s Support us on Patreon : https://www.patreon.com/user?u=2969403
Views: 80802 Analytics University
In this video, I show how to use R to fit a linear regression model using the lm() command. I also introduce how to plot the regression line and the overall arithmetic mean of the response variable, and I briefly explain the use of diagnostic plots to inspect the residuals. Basic features of the R interface (script window, console window) are introduced. The R code used in this video is: data(airquality) names(airquality) # "Ozone" "Solar.R" "Wind" "Temp" "Month" "Day" plot(Ozone~Solar.R,data=airquality) #calculate mean ozone concentration (na´s removed) mean.Ozone=mean(airquality$Ozone,na.rm=T) abline(h=mean.Ozone) #use lm to fit a regression line through these data: model1=lm(Ozone~Solar.R,data=airquality) model1 abline(model1,col="red") plot(model1) termplot(model1) summary(model1)
Views: 350319 Christoph Scherber
Business Analytics and Data Science are almost same concept. For both we need to learn Statistics. In this video I tried to create value on most used statistical methods for Data Science or Business Analytics for Statistical model Building. Statistics is the study of the collection, analysis, interpretation, presentation, and organization of data. In applying statistics any can handle a scientific, industrial, or societal problem. I value your time and effort that is why I have capture almost 20 statically concept in this video. Learn Basic statistics for Business Analytics Here I have capture how to learn Mean, how to learn Mode, How to learn median, Concept of Sleekness, Concept of Kurtosis, learn Variables, concept of Standard deviation, Concept of Covariance, Concept of correlation, Concept of regression, How to read regression formula, how to read regression graph, Concept of Intercept, Concept of slope coefficient, Concept of Random Error, Different types of regression Analysis, Concept ANOVA (Analysis of Variance), How to read ANOVA table, How to learn R square (Interpreted R square), Concept of Adjusted R Square, Concept of F test, Concept of Information Value, Concept of WOE, Concept of Variable inflation Factors. Learn Basic statistics for Business Analytics By this video you can Start Learn statistics for Data Science and Business analytics easily and effectively. These statistics are useful when at the time of running linear regression, Logistic regression statistics models. For Statistical Data Exploration you may need to see Meager of central tendency and Data Spread in Statistics. By Understanding Mean, Mode, Median, Sleekness, Kurtosis, Variance, Standard deviation. Learn Basic statistics for Business Analytics To understand statistical relationship between variables you can use Covariance, Correlation coefficient, Regression , ANOVA (Analysis of Variance) . Learn Basic statistics for Business Analytics To understand Strength of stastical relationship between variables you can use R square, Adjusted R square, F test. If you want to understand variable importance in your stastical model you can use Information value (IV) and Weight of evidence (WOE) Concept. Information value and Weight of evidence mostly used in Logistic Regression Analysis. Learn Basic statistics for Business Analytics Variable inflation factors (VIF) is used for understanding, It is the stastical method to understand variable importance. What is the importance of this variable statically in the Regression model? By VIF we check Correlation between variable. Learn Basic statistics for Business Analytics At last I have explained when to use ANOVA, When to Use Linear regression and when to use Logistic regression. Learn Basic statistics for Business Analytics Thank you So much for watching this video, Hope I can add some value in your Journey as a Statistician, Business Analytics professional and Data Scientist professional. Blogger : http://koustav.analyticsanalysis.busi... google plus: https://plus.google.com/u/0/115750715 facebook link: https://www.facebook.com/koustav.biswas.31945?ref=bookmarks website: https://www.analyticsanalysisbusiness.com
Views: 86011 Analytics Analysis Business
All videos here: http://www.zstatistics.com/ The first video in a series of 5 explaining the fundamentals of regression. Please note that in my videos I use the abbreviations: SSR = Sum of Squares due to the Regression SSE = Sum of Squares due to Error. Intro: 0:00 Y-hat line: 2:26 Sample error term, e: 3:47 SSR, SSE, SST: 8:40 R-squared intro: 9:43 Population error term, ε: 12:11 Second video here: http://www.youtube.com/watch?v=4otEcA3gjLk Ever wondered WHY you have to SQUARE the error terms?? Here we deal with the very basics: what is regression? How do we establish a relationship between two variables? Why must we SQUARE the error terms? What exactly is SSE, SSR and SST? What is the difference between a POPULATION regression function and a SAMPLE regression line? Why are there so many different types of error terms?? Enjoy.
Views: 657792 zedstatistics
This video shows how to use SPSS to conduct a Correlation and Regression Analysis. A simple null hypothesis is tested as well. The regression equation is explained despite the result of the hypothesis conclusion. ====================================================== Ways to support my channel: 1. Like, Share and Subscribe. 2. Buy Andy Field's textbook here: http://amzn.to/2yxomuQ 3. Buy SPSS (Student's version) here: http://amzn.to/2g19Ofc 4. Buy this book written by Dr. Everett Piper, President of Oklahoma Wesleyan University. Analyzes the current higher education system: http://amzn.to/2y6tpRk 5. Donate at PayPal.Me/AGRONKACI ============================ MORE VIDEOS: Watch Using Excel to find the Correlation Coefficient r here: https://youtu.be/y3bgaLwdm50 Watch ANOVA in SPSS here: https://youtu.be/Bx9ry1vBbTM Watch Sampling Distribution of Sample Means here: https://youtu.be/anGsd2l5YpM Watch Using Excel Charts to calculate Regression Equation here: https://youtu.be/qZjTtnyaV70 Watch Using Excel to calculate Regression Equation here: https://youtu.be/LDC0p9iZY8g Watch ANOVA in Microsoft Excel (One-Way) here: https://youtu.be/WhBkgWL3_3k Useful stuff: 6. Robot Vacuum Cleaner: http://amzn.to/2xpNGCH 7. Roku Express: http://amzn.to/2yvvAPQ 8. Mini Coffee Maker: http://amzn.to/2y7S1tq 9. Xbox One S 1TB Console - Forza Horizon 3 Bundle: http://amzn.to/2xoycPA 10. Xbox One 1TB Console - Tom Clancy's The Division Bundle: http://amzn.to/2yxYi2J ============================
Views: 242606 Agron Kaci
This is an introduction to econometrics tutorial. This video is a basic overview and touches on each of these subjects: 1. What is Econometrics? 2. Goals of Econometrics 3. Types of Economic Data 4. The "Simple Linear Regression" (SLR) 5. Causality This lecture on econometric theory is meant to introduce the student to the concepts of econometrics, as well as provide a basic overview of what the topic of econometrics encompasses. The next video tutorial on simple linear regressions: http://youtu.be/CBa8frhRKMw Follow us on Twitter @ https://twitter.com/KeynesAcademy All video, images, commentary and music is owned by Keynes Academy.
Views: 355369 KeynesAcademy
Linear Regression Analysis, testing for the significance of the independent variables based on regression model for a linear line established by X (Independent Variable) & Y (Dependent Variable), checking for a significant relationship between the variables, understanding the predictor, coefficients, standard error, confidence intervals, T-Stat, P-Value, etc., detailed analysis by Allen Mursau
Views: 39823 Allen Mursau
An introduction to basic panel data econometrics. Also watch my video on "Fixed Effects vs Random Effects". As always, I am using R for data analysis, which is available for free at r-project.org My Website: http://www.burkeyacademy.com/ Link to the data: http://www.burkeyacademy.com/my-forms/Panel%20Data.xlsx Link to previous video: http://www.youtube.com/watch?v=ySTb5Nrhc8g Support this project on Patreon! https://www.patreon.com/burkeyacademy Or, a one-time donation on PayPal is appreciated! http://paypal.me/BurkeyAcademy My Website: http://www.burkeyacademy.com/ Talk to me on my SubReddit: https://www.reddit.com/r/BurkeyAcademy/
Views: 207366 BurkeyAcademy
This webinar provides an overview of basic quantitative analysis, including the types of variables and statistical tests commonly used by Student Affairs professionals. Specifically discussed are the basics of Chi-squared tests, t-tests, and ANOVAs, including how to read an SPSS output for each of these tests.
Views: 21709 CSSLOhioStateU
Decision Tree (CART) - Machine Learning Fun and Easy ►FREE YOLO GIFT - http://augmentedstartups.info/yolofreegiftsp ►KERAS Course - https://www.udemy.com/machine-learning-fun-and-easy-using-python-and-keras/?couponCode=YOUTUBE_ML Decision tree is a type of supervised learning algorithm (having a pre-defined target variable) that is mostly used in classification problems. A tree has many analogies in real life, and turns out that it has influenced a wide area of machine learning, covering both classification and regression (CART). So a decision tree is a flow-chart-like structure, where each internal node denotes a test on an attribute, each branch represents the outcome of a test, and each leaf (or terminal) node holds a class label. The topmost node in a tree is the root node. ------------------------------------------------------------ Support us on Patreon ►AugmentedStartups.info/Patreon Chat to us on Discord ►AugmentedStartups.info/discord Interact with us on Facebook ►AugmentedStartups.info/Facebook Check my latest work on Instagram ►AugmentedStartups.info/instagram Learn Advanced Tutorials on Udemy ►AugmentedStartups.info/udemy ------------------------------------------------------------ To learn more on Artificial Intelligence, Augmented Reality IoT, Deep Learning FPGAs, Arduinos, PCB Design and Image Processing then check out http://augmentedstartups.info/home Please Like and Subscribe for more videos :)
Views: 158100 Augmented Startups
Errors and residuals are not the same thing in regression.The confusion that they are the same is not surprisingly given the way textbooks out there seem to use the words interchangeably. Let me introduce you then to residuals and the error term.
Views: 50779 Phil Chan
Views: 2105 Ankpro Training
Learn about Likert Scales in SPSS and how to copy labels from one variable to another in this video. Entering codes for Likert Scales into SPSS is also covered. Check out our next text, 'SPSS Cheat Sheet,' here: http://goo.gl/b8sRHa. Prime and 'Unlimited' members, get our text for free! (Only $4.99 otherwise, but will likely increase soon.) Lots more Likert & SPSS Videos here: https://www.udemy.com/survey-data/?couponCode=SurveyLikertVideosYT Likert scale SPSS video. YouTube Channel: https://www.youtube.com/user/statisticsinstructor Channel Description: For step by step help with statistics and SPSS. Both descriptive and inferential statistics covered. Subscribe today! Video Transcript: In this video we'll take a look at how to enter value labels for a variable which will be review since we've done that before. But then I also want to show you how to apply value labels that were entered for one variable to a number of different variables which can be really useful as it's a great time saver. Here in this data set notice that I have 10 people and I have the variables gender, item 1, 2, 3, 4, and 5. And they answered on what's known as a Likert scale. Now you very well may have heard of a Likert scale before and the first thing is you may have heard of it called LIKE-ERT scale which is very common to call it that but it's actually Likert, so it's pronounced LICK-ERT instead of LIKE-ERT and it was developed by Rensis Likert in the early to middle 1900s he developed the scale. And it's used so commonly, it's used in this 5-point option as you see here, 5 to 1, and we'll talk about that in just a moment. You'll also see it in a 7-point option, it's very commonly used that way. And less commonly so but you'll see it in other ways like 9-point scale and so forth. And it's used with many different kinds of descriptions like definitely true, somewhat true, and so forth; not just agree as you see here. So, in the most traditional use of this scale, which is what we see right here, we have a 5=strongly agree, a 4=agree, 3 is neither agree nor disagree - this is sometimes called neutral - 2 is disagree and then 1 is strongly disagree. On item 1 they would read the following statement: I can turn to others for support when needed. And then what they do is they read that item, they look at these 5 options, and if it's someone who has a lot of support in their network or friendships or what have you, they might answer 5, strongly agree, or 4, agree. And if it's someone who doesn't experience a lot of social support, they might answer a 1 for strongly disagree or a 2 for disagree and so on. So, the first person here in row 1, notice for item 1 they answered a 4, so they answered agree. Item 2 they answered a 5 for strongly agree and so on. If we look down item 1, did anyone answer strongly disagree - let's take a look at that. We're looking for a 1 here, and notice that participant number 9, they answered a 1 on item 1, so they answered strongly disagree, and so on. So what I want to do here is go ahead and enter the value labels for item 1 so we're going to enter these into SPSS that you see here. And then I want to show you how to apply those to the remaining items in a very quick way. First of all, notice that we have gender, if I click on my value labels button here as a review, gender is already coded, I already entered those. But what I don't have entered is item 1, item 2, 3, 4, and 5. And I'd like to go ahead and enter those to have them in the dataset, so if I go back and look at this file at a later time, I'll remember that a 5 corresponded to strongly agree and a 1 corresponded to strongly disagree, so in other words I'll know which direction this scale is scored, and what I mean by that is higher scores indicate greater social support because people strongly agreed with a given item. Whereas lower scores indicated less social support. Since we're looking at entering value labels, let's begin with item 1. So I could either double-click on item 1 or I could go to the variable view tab. Let's go ahead and double-click on item 1 right at the column heading here that's "name". So I double-click on that and notice it takes me to the variable view window. So that's a quick way to get there if you want to access the variable view window. And then we'll go to the "values" column here, click on the "None" cell and then notice the 3 dots appear. So I click on that and then here let's start with Lifetime access to SPSS videos: http://tinyurl.com/m2532td Video on adding Likert items together to create a total score: http://youtu.be/7jxpSLZCBsw Likert Scales Likert Strongly Agree to Strongly Disagree Likert in SPSS
Views: 190663 Quantitative Specialists
Likert Scale: http://en.wikipedia.org/wiki/Likert_scale R: http://www.r-project.org/
Views: 221902 Alan Cann
In this lecture, we discuss types of variables in datasets. Introduction to Nominal/Categorical, Ordinal and Interval/Ratio/Continuous variables. We explore the concepts regarding point projection onto n-dimensional space and cartesian geometry applied onto data analysis. This playlist provides approximately 10 hours of our Analytics Training series. For more information, please visit www.learnanalytics.in . For enquiries drop an email to [email protected] . The training covers basic business statistics concepts and using tools such as SAS, SPSS , Statistica and R using Rattle. The objective of the training series is to prepare the student for a career in Data Analysis and the Analytics Industry in general. Please visit our website for further details. If you wish to subscribe to our full Analytics Training module, please visit http://goo.gl/nIJJHg for our paid Youtube Channel which contains additional hours covering more extensive topics including Linear Regression/Logistic Regression, building and testing predictive models using Logistic / Decision Trees and Ensembling. All videos on our paid channel are available without advertisement interruptions and you can enrol for a 14 day free subscription trial. You pay only if you want to continue. Additionally, you get access to the datasets discussed in the videos and all SAS Codes.
Views: 77948 Learn Analytics
We often turn to our coping mechanisms when dealing with stressful situations. Here are 10 psychological defense mechanisms that people rely on. Ways To Support Us: https://www.patreon.com/Psych2GoNow Buy from our shop here: https://www.introvertpalace.com/ Use the discount code: psych2go to get 10% off anything in the shop. Sign up with our sponsored link for affordable online counselling: http://betterhelp.com/Psych2Go Intro: Surey Camacho Script: Geneva Fluet Voice Over: Star Martin Animator: Lesly Ramirez Project Manager: Wendy Hu Community Manager: Priscilla Cha, Nicole Pridemore Producer: Psych2Go "And so it begins"-Artificial Music Website: http://psych2go.net Twitter: http://twitter.com/psych2go Facebook: http://facebook.com/psych2go Tumblr: http://psych2go.me Patreon: http://patreon.com/psych2gonow Contact + [email protected]
Views: 179043 Psych2Go
►Check the below link for detailed post on "What is Regression Testing. When & How We Do Regression Testing" http://www.softwaretestingmaterial.com/regression-testing/ ►THANKS for taking the time to visit, I hope you SUBSCRIBE and enjoy the upcoming videos! ►Please SUBSCRIBE for More videos: https://www.youtube.com/channel/UCIJGI_3XgnfUaSNQD8D2IMQ ►If you like this video, Please click on Like and Comment! ►Follow Us on Social Network: ►Google +: https://plus.google.com/u/0/112866700026030919889/posts ►Facebook: https://www.facebook.com/SoftwareTestingMaterial ►Twitter: https://twitter.com/STMWebsite ►Pinterest: https://www.pinterest.com/stmsite/ ►Website: http://www.softwaretestingmaterial.com ►LinkedIn: https://www.linkedin.com/in/rajkumarsm/
Views: 65897 Software Testing Material
This video discusses how to interpret the R-squared and the Regression Standard Error to assess model fit: the model's ability to explain the variance in the dependent variable. TABLE OF CONTENTS: 00:00 Introduction 00:07 Some things we just can’t explain 01:24 Model Fit 03:08 R-Squared ( R2 ) 03:54 R2 Examples 04:52 Plot of Consumption vs. Income Model 05:21 R2 in Regression Result 06:06 Regression Standard Error (RSE) 06:52 R2 and Standard Error Examples 07:35 S.E. in Regression Result 07:55 Summary
Views: 43208 dataminingincae
Data Science & Machine Learning - Method Types in Regression Trees - DIY- 16 -of-50 Do it yourself Tutorial by Bharati DW Consultancy cell: +1-562-646-6746 (Cell & Whatsapp) email: [email protected] website: http://bharaticonsultancy.in/ Google Drive- https://drive.google.com/open?id=0ByQlW_DfZdxHeVBtTXllR0ZNcEU Regression trees rpart(Target ~ Predictors, data = DataSets, method=“Types"). Method Types: class – categorical classification of data. anova – continuous values. poisson – based on counts of values, like count of employed exp – exponential - Survival method Hands On – R Machine Learning Ex-12 Extend the hands-on exercise -11 Implement Regression Trees Model using different methods for target variable - Spend using predictor variables Age, Income, Job, Auto Loan Indicator, Gender, Marital Status. Calculate Mean Square Error for each method. Data Science & Machine Learning - Getting Started - DIY- 1 -of-50 Data Science & Machine Learning - R Data Structures - DIY- 2 -of-50 Data Science & Machine Learning - R Data Structures - Factors - DIY- 3 -of-50 Data Science & Machine Learning - R Data Structures - List & Matrices - DIY- 4 -of-50 Data Science & Machine Learning - R Data Structures - Data Frames - DIY- 5 -of-50 Data Science & Machine Learning - Frequently used R commands - DIY- 6 -of-50 Data Science & Machine Learning - Frequently used R commands contd - DIY- 7 -of-50 Data Science & Machine Learning - Installing RStudio- DIY- 8 -of-50 Data Science & Machine Learning - R Data Visualization Basics - DIY- 9 -of-50 Data Science & Machine Learning - Linear Regression Model - DIY- 10(a) -of-50 Data Science & Machine Learning - Linear Regression Model - DIY- 10(b) -of-50 Data Science & Machine Learning - Multiple Linear Regression Model - DIY- 11 -of-50 Data Science & Machine Learning - Evaluate Model Performance - DIY- 12 -of-50 Data Science & Machine Learning - RMSE & R-Squared - DIY- 13 -of-50 Data Science & Machine Learning - Numeric Predictions using Regression Trees - DIY- 14 -of-50 Data Science & Machine Learning - Regression Decision Trees contd - DIY- 15 -of-50 Data Science & Machine Learning - Method Types in Regression Trees - DIY- 16 -of-50 Machine learning, data science, R programming, Deep Learning, Regression, Neural Network, R Data Structures, Data Frame, RMSE & R-Squared, Regression Trees, Decision Trees
Views: 721 BharatiDWConsultancy
Visual explanation on how to read the Coefficient table generated by SPSS. Includes step by step explanation of each calculated value. Includes explanation plus visual explanation. Includes explanation on how to calculate the betas, standard error and standardized coefficients. Related Videos Playlist on Regression Analysis http://www.youtube.com/playlist?list=PLF596A4043DBEAE9C Like MyBookSucks on FaceBook http://www.FaceBook.Com/partymorestudyless
Views: 284028 statisticsfun