Dickey fuller unit root test and Ljung box independence tests are discussed using attendance data set.
ARIMA using the Box-Jenkins approach. Discussed Dickey fuller, Ljung−Box Test and KPSS tests. Built and validated a forecast for in-time data in attendance data.
A brief introduction to ChiSquare goodness of fit test using attendance data. Codes for Chi-sq plots along with post-hoc Cramers V are available.
Anova hypothesis test on unemployment data. Post hoc analysis and visualisations are presented.
Discussion on hypothesis testing. Introduction to z-test and t-test, Code for visualization of z-test and t-test.
Tutorial on Time Series EDA. Contains time plot, seasonal plots and correlogram plots (ACF) for in-time problem with reusable R code.
Tutorial on Multicollinearity which is the third part of EDA. Plot of Correlation matrix and network for in-time problem with reusable code.
Tutorial on Multivariate analysis which is the second part of EDA. Explained using in-time problem with reusable R code.
Tutorial on Univariate analysis which is the first part of EDA. Explained using in-time problem with reusable R code.