Date:         Mon, 9 Oct 2006 09:26:41 -0400
Reply-To:     Nathaniel_Wooding@DOM.COM
Sender:       "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From:         Nat Wooding <Nathaniel_Wooding@DOM.COM>
Subject:      Re: SAS/Graph -- accessing symbol color from a datastep?
Comments: To: Rick <rdbisch@GMAIL.COM>
In-Reply-To:  <1160356575.896301.211360@k70g2000cwa.googlegroups.com>
Content-Type: text/plain; charset="US-ASCII"

Rick

Here's a possible approach:

1) define your color list in a macro or macro variable -- say

%macro clist;       black blue red green          %mend clist;

2) use this list in a goptions statement

goptions colors= ( %clist  ) ;


Then, when you are setting up your annotate statements, you can scan the
contents of the macro variable and select the appropriate color.

Good luck.

Nat Wooding



             Rick
             <rdbisch@GMAIL.CO
             M>                                                         To
             Sent by: "SAS(r)          SAS-L@LISTSERV.UGA.EDU
             Discussion"                                                cc
             <SAS-L@LISTSERV.U
             GA.EDU>                                               Subject
                                       SAS/Graph -- accessing symbol color
                                       from a datastep?
             10/08/2006 09:16
             PM


             Please respond to
                   Rick
             <rdbisch@GMAIL.CO
                    M>






Short: Is there a way to get the color for a symbol inside the data
set?  E.g. COLOR = SymbolColor(4) would set the variable COLOR to
whichever color was assigned to symbol4.  This should work even if it's
only the default color.

Long: I have a dataset of the form:

ClassA ClassB                 proportion
 1-20      unknown levels   in [0,1]

I am trying to create a line plot that shows, on the same graph

X-Axis is classA
Y-Axis is proportion

There is a seperate line for each level in classB.  So the simple way
is:

PROC GPLOT;
    PLOT proportion*classA = classB;
RUN;

The tricky part is that I also want a reference line for each level of
classB showing it's overall proportion (across all values of classA).
This is what I have so far:

(unimport code that calculates the overall proportion for all levels in
classB.  For example, annotate before running this datastep might be:

classB overallProportion
   1       0.15
   2       0.45
   3       0.40
)

DATA annotate;
        SET annotate;
        RETAIN HSYS YSYS XSYS '2';
        %ANNOMAC;

        %LINE(1, overallProportion, 20, overallProportion, BLACK, 1,
.1);
RUN;

The problem with this is that you can't tell which reference line goes
to which level, because they are all black! If I had a way to get the
symbol color for symbol "i", I could just replace "BLACK" in the above
example with that color, and the reference lines color would match up
with the plot.

Other Problems:

This is trying to be a macro, so I can't code assuming only a certain
number of levels for classB. It should try to be dynamic.

Thanks in advance for any help!



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