why are r linear fitline hugs the horizontal why is r's fitline flat why is r linear fitline flat why is the fitline flat? why is r's x-y fitline so flat why are r's fitlines so often flat? is y a binary range why are r's fit lines flat why is lowess always flat in r why is the smoothed fitline flat why is r linear fitline often flat? why is it that when r is in binary y, it hugs the horizontal? why is the r-y fit always the same for x why is r's fitline so flat why is y in r why are the fitlines of an r linear model sometimes flat? explain why a r fitline is always flat on a binary y why are r's highs and lows flat why do r's fitline curves often hugs the horizontal why is the fitline of a binary y flat