why do we need standard error and slope lm weight in r what is lm weight and the standard error what is the standard error of lm in r how do you find the standard error in r what is std error in r what is the standard error in a straight line fit in r what is standard error for r how to find error on regression fitters why is lm weights used what is the standard error in d.f when fitting a straight line how to find standard error in excel for linear fit what is the standard error in r for linear fitting lm weights r when you fit a variable to a straight line the standard error is what is standard error for r can you do a straight line fit in r r fitting weights lm based on standard error what does lm weights mean