how to cross validate a linear model cost argument in crossvalidation how to cross validate linear model with rmse how to cross validate a linear model calculate the average squared error of the linear model cost argument in a linear model average squared error function example cost argument in bootstrap rmse cost argument cost argument in bootstrap what model is the cost argument what is the cost argument for a linear model cost argument in linear cross validation what is the cost argument for a linear model? cost argument of the linear model cost function cross validation cost argument for rpmse what is cost in rmse what is the cost argument in a linear model what is the cost rmse in javascript