Quantile Regression for robust regression

ranger …predict

if (is.null(data)) {
 
stop(“Error: Argument ‘data’ is required for non-quantile prediction.”)
 
}

Error: Argument ‘data’ is required for non-quantile prediction

https://cran.r-project.org/web/packages/quantreg/quantreg.pdf

library(moments) ## skewness and kurtosis

library(quantreg) ## for robust regression