Articles by Bidyut Ghosh

Qualitative Research in R

October 20, 2017 | Bidyut Ghosh

In the last two posts, I’ve focused purely on statistical topics – one-way ANOVA and dealing with multicollinearity in R. In this post, I’ll deviate from the pure statistical topics and will try to highlight some aspects of qualitative research. More specifically, I’ll show you the procedure of ...
[Read more...]

Multicollinearity in R

September 29, 2017 | Bidyut Ghosh

One of the assumptions of Classical Linear Regression Model is that there is no exact collinearity between the explanatory variables. If the explanatory variables are perfectly correlated, you will face with these problems: Parameters of the model become indeterminate Standard errors of the estimates become infinitely large However, the case ...
[Read more...]

One-way ANOVA in R

August 28, 2017 | Bidyut Ghosh

Suppose as a business manager you have the responsibility for testing and comparing the lifetimes of four brands (Apollo, Bridgestone, CEAT and Falken) of automobile tyres. The lifetime of these sample observations are measured in mileage run in ’000 miles. For each brand of automobile tyre, sample of 15 observations have been ...
[Read more...]

Never miss an update!
Subscribe to R-bloggers to receive
e-mails with the latest R posts.
(You will not see this message again.)

Click here to close (This popup will not appear again)