Date:         Mon, 29 Nov 1999 13:16:10 -0500
Reply-To:     "Slagle, Paul" <Paul.Slagle@STATPROBE.COM>
Sender:       "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From:         "Slagle, Paul" <Paul.Slagle@STATPROBE.COM>
Subject:      Re: Points labels in Gplot Procedure (answer and question?)
Comments: To: SAS-L@LISTSERV.VT.EDU
Content-Type: text/plain; charset="iso-8859-1"

That works fine, as long as the symbol you want does not change for each
record.  If however, you want to produce a plot where each record represents
a unique point, which needs to be identified, than the annotate facility
would need to be used.

Example:  (Note: the following code is an example in rough form and is NOT
executable!)

Data toplot;
input x y text;
retain xsys ysys '2';
function='label';
cards;
2 4 IN
3 4 MI
1 5 KY
6 7 CA
3 2 FL
;
run;

symbol1 v=NONE;
proc gplot data=toplot annotate=toplot;
     plot y*x;
        run;

Paul Slagle
-----Original Message-----
From: Ya Huang [mailto:Y.Huang@ORGANONINC.COM]
Sent: Monday, November 29, 1999 11:09 AM
To: SAS-L@LISTSERV.VT.EDU
Subject: Re: Points labels in Gplot Procedure (answer and question?)


Jose,

I don't think annotate is necessary for a single plot if you just wanted to
replace the default symbol with some text string. I assume that is what you
wanted because you said 'variable label', but not 'variable value'. Here is
the online help for SYMBOL statement:

---------
SYMBOL: VALUE Option

VALUE | V= special-symbol | text-string | NONE

Specifies a plot symbol for the data points.  If you use VALUE=  text-string
to specify
a plot symbol, you must also use the FONT=  option to specify a symbol font
or a text
font.  VALUE= NONE  produces a plot with no symbols at the data points.

By default, VALUE= PLUS , which produces the + symbol for the plot  symbol.
---------

The above online help tells us, we can actually put some text string to the
place
where symbol supposed to be. Following is a sample code, where v='***' is
the place
to put your var label.

GOPTIONS RESET=ALL DEVICE=VT340;

   DATA XX;
   DO X=1 TO 6 BY 0.5;
   Y=100*sin(x);
   Z=100*COS(x);
   OUTPUT;
   END;

SYMBOL1 I=JOINT V='yyy' FONT=SWISS;
SYMBOL2 I=JOINT V='ZZZ' FONT=CENTX;

   PROC GPLOT;
   PLOT Y*X=1 Z*X=2 /OVERLAY;
   RUN;

Run this sample and you'll see '+' is replaced by 'yyy'.

OK, now my question:

Why it only works for a single plot? If I want to overlay two
plots, the second one will still use the first symbol, even though
I have specify the symbol number for different plot? In my sample
code, 'yyy' appears on both of y and z.

Somebody has an explanation for this?


Ya Huang
Organon Inc.
475 Prospect Ave.
West Orange, NJ 07052
973-325-5407

> -----Original Message-----
> From: José Ailton Alencar andrade [mailto:andrade@INEP.GOV.BR]
> Sent: Monday, November 29, 1999 8:25 AM
> To: SAS-L@LISTSERV.UGA.EDU
> Subject: Points labels in Gplot Procedure
>
>
>     Hello All,
>
>     How do I replace the plot symbols (dot, star, etc.) to a variable
> label? I think we have to use the Annotate Facility. But I have not
> clearly how.
>
>     thanks.
>