topic Re: Can I put multiple regression lines on a plot: ? in Graphics Programming

Can I put multiple regression lines on a plot ?

Linlin — Mon, 29 Oct 2012 16:21:38 GMT

Dear All,

Can I put three regression lines(age vs weight) on the same plot(based on dataset class)?

One line is for a regression line with gender=0, another with gender=1, another with gender=2?

data class1;

set sashelp.class;

gender=0;

data class2;

set sashelp.class;

if sex='M' then gender=1;

else gender=2;

data class;

set class1 class2;

proc sort data=class;

by gender age;

run;

Thank you very much!

Re: Can I put multiple regression lines on a plot: ?

VD — Mon, 29 Oct 2012 16:34:00 GMT

symbol1 value=none i=r ci=black;
symbol2 value=none i=r ci=blue;
symbol3 value=none i=r ci=green;

PROC GPLOT DATA=class;
PLOT Age *Weight=Gender/
;

RUN; QUIT;

Re: Can I put multiple regression lines on a plot: ?

Linlin — Mon, 29 Oct 2012 17:28:15 GMT

Thank you VD!

I found the "regeqn" option.

Re: Can I put multiple regression lines on a plot: ?

PGStats — Mon, 29 Oct 2012 18:41:09 GMT

Or :

proc sgplot data=class;

series y=weight x=age / group=gender;

run;

Re: Can I put multiple regression lines on a plot: ?

Linlin — Mon, 29 Oct 2012 18:56:44 GMT

Thank you PG! I am not familiar with SAS graphs. I need the regression line.

I found an example on line:

title1

’Linear Regression of Height and Weight’;

title2 ’(with 95% Confidence Limits)’;

symbol ci=red cv=blue co=gray value=dot

interpol=rlclm95 ;

proc gplot data=sashelp.class;

plot height*weight / regeqn;

run; quit;

Re: Can I put multiple regression lines on a plot: ?

PGStats — Mon, 29 Oct 2012 19:35:17 GMT

Sorry, I should have read more carefully...

proc sgplot data=class;

reg y=weight x=age / group=gender clm clmtransparency=0.4 lineattrs=(pattern=solid);

run;

Re: Can I put multiple regression lines on a plot: ?

Linlin — Mon, 29 Oct 2012 19:53:52 GMT

Thank you PG!! Linlin