which r function does lm call what is the lm function in r what is the lm function in r what is lm in r what is the function lm in r what are the functions in r for gradient descent what is the function of lm in r which function is used in lm why is lm called a gradient descent function in r which function is lm in r r function that converts r value into r what is lm in r which function of r is used for gradient descent what does lm stand for what is lm in r which function returns lm what is the function of lm what's the function lm what is lm in r what is lm in r