Step by step explanation of CHAID decision trees using the Titanic data set
Forecasting sales of new products using Bass model. Calculating p, q and m for iPhone sales using gradient descent. Cool visualizations and code provided.
Handling missing values in original mtcars data set by imputation using KNN algorithm.
This post deals with Chi Square test of independence. Along with the R code, a contingency table, and mosaic plot are also presented.