Wednesday, September 28, 2011

Regression Links

Here are links to Youtubes I've done on various aspects of regression. I'll be putting up more as we progress through the technique

Simple linear regression

This is an unrealistic example just to illustrate the theory.

Multiple regression with a dummy variable

Here I show how to convert a categorical variable which is either Yes or No into 1, 0, using Excel's =(if..) function. The new variable can then be used as an independent variable in a multiple regression. Uses the 'stroke' data for predicting risk of a stroke from age, blood pressure and smoking history.

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