compare_two_lm function

Statistical test of the collective significance of the ilr variables

compare_two_lm(y_str, X1, X2)

Arguments

• y_str: a string representation of the column in X1 (and X2) that is the outcome
• X1: a data.frame or matrix that contains a subset of the predictor variables in X2 and outcome variable
• X2: a data.frame or matrix that contains the predictor variables and outcome variable

Returns

Returns NULL invisibly. The ANOVA analysis is printed to the console, that is, the statistical test of whether the additional predictors in X2 improve the model significantly from the model with only the subset of predictors in X1.