R Language Questions Asked in Interview

MANOVA stands for Multivariate Analysis of Variance, and it is used to test more than one dependent variable simultaneously. In R, MANOVA stands for Multivariate Analysis of Variance. MANOVA is a statistical technique used to analyze the differences among group means in a multivariate response variable. It is an extension of Analysis of Variance (ANOVA) … Read more

This package is used to measure the relative importance of every predictor in the model, and the robust package gives a library of robust methods, including regression. Sure, I can provide information on the relaimpo and robust packages in R. relaimpo package: relaimpo stands for Relative Importance. This package is used for assessing the relative … Read more

The leaps() function is used to perform the all-subsets regression and defined under the leaps package. In R, the leaps() function is part of the “leaps” package and is used for model selection using various types of leaps-and-bounds algorithms. It is commonly employed in the context of linear regression to explore all possible subsets of … Read more

The cv.lm() function is defined under the DAAG package used for k-fold validation while the stepAIC() function is defined under the MASS package that performs stepwise model selection under exactAIC. In R, cv.lm() and stepAIC() are functions commonly used in the context of linear regression modeling and model selection. cv.lm() Function: cv.lm() stands for cross-validation … Read more

The anova() function is used for comparing the nested models. In R, the anova() function is commonly used to perform analysis of variance (ANOVA). ANOVA is a statistical method that is used to analyze the differences among group means in a sample. It is often employed to assess whether there are any statistically significant differences … Read more