Date:         Mon, 13 Jan 2003 07:29:15 -0800
Reply-To:     Bobby Kidd <rakidd@FTB.COM>
Sender:       "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From:         Bobby Kidd <rakidd@FTB.COM>
Organization: http://groups.google.com/
Subject:      2 plots on the same axes
Content-Type: text/plain; charset=ISO-8859-1

Fred,
  In order to be able to plot your data on the same set of axes you
must (by definition) have at least your dependent variable in common.
In this case "Age".  Try merging the two datasets by Age.  Then you
can use the overlay option in proc plot.

Proc Plot data = Merged_Data;
plot Age * Sta
     Age * Category_Mean/ OVERLAY;
run;

This will plot both graphs on the same plot.  But it does require a
merged dataset.

Age   STA    Category_Mean
40    0         .2
40    1         .2
40    0         .2
50    1         .4
50    0         .4
.
.
.
70    1         .5

Since this will be a one to many merge check to insure that having
multiple identicle points will not change your "-" marker to something
that is indicative of how many overlapping points there are (i.e. "B",
"C" for 2 and 3 overlapping points).

Good Luck,
HTH,

Bobby


fredgerson@aol.com (Fred Gerson) wrote in message news:<8064c3a.0301121325.5d053127@posting.google.com>...
> Hey all,
>
> I'm doing a Logistic Regression problem where I have to combine both a
> scatterplot of raw data, and a summary plot of the means of the data
> grouped by certain intervals, on the same set of axes. The dataset
> looks like
>
> AGE     STA
> 45        1
> 56        0
> 55        1
> 47        0
> ...
>
> I'm using proc format to group the age variable into categories and
> then proc means to give me mean values for STA for each of the
> categories. I can get the plots I want by seperately by using 2 proc
> plots but I want to combine these two graphs.
>
> proc plot data=LogReg;
>      plot age * sta;
>
> gives me something like
>
> 1       ABBCB
> |
> |
> 0__ABACA____
> 40 50 60 70 80
>
> and
>
> proc plot data=LogRegMean;    *dataset from means proc above;
>      plot agemean * categorymean = "-";
>
> gives me something like
>
> |                      -
> |            -
> |                 -
> |      -
> |  -
> -40-50-60-70-80-
>
> proc plot won't let me use two different datasets in a single
> procedure, so I'm at a loss as to how to put these two graphs on the
> same axes.
>
> Thanks so much,
> Fred