Ranting at stats homework frustration.
Sep. 22nd, 2006 02:09 amOkay, so those who know how to do statistical analysis on scatter plot graphs know that when doing a linear regression line, the higher the r^2 is, the closer all the datapoints are to the regression line.
Well, for this particular problem I have to graph two lines from two sets of data.
Anyone recognize what's wrong with this graph?

Well, the line for the "right" data has an r^2 of 0.0928 while the "left" data has an r^2 of 0.1018. And yet, the "right" datapoints are clearly shown as being a lot closer to the regression line! Argh!!
Well, for this particular problem I have to graph two lines from two sets of data.
Anyone recognize what's wrong with this graph?

Well, the line for the "right" data has an r^2 of 0.0928 while the "left" data has an r^2 of 0.1018. And yet, the "right" datapoints are clearly shown as being a lot closer to the regression line! Argh!!
no subject
Date: 2006-09-22 05:23 pm (UTC)BTW, what stats program are you using? SPSS pro is the best ever. (I totally ganked my copy off a prof, I thought that's the one that I'd bought and was waiting for, but then the student edition came in the mail. Heh. ^_^;;; )
no subject
Date: 2006-09-22 07:32 pm (UTC)