Performs weighted standardization of x variables. Used in fastridge
.
standardize_wt(x, weights = rep(1/n, n), intercept = TRUE, return.sd = FALSE)
If return.sd == FALSE
, it gives the matrix of standardized regressors. If
return.sd == TRUE
, then it returns the vector of standard errors of the means of the
variables.
Regressor matrix.
Weights.
Logical. If TRUE
, adds an intercept.
Logical. If TRUE
, it returns standard errors for the means.