CODEWITHSUNDEEP
sas
Imane
Imane

Reputation: 3

plot dynamique reference lines with sas programme

I'm trying to draw a variable with 3 reference lines calculated with user-selected parameters.

proc gplot data=DES;
   plot yn*n /vref= u-&r &r u+&r;
run;

r is choosen by the user

u is calculated

how can I assign the value directly to vref?

Upvotes: 0

Views: 47

Answers (1)

Tom
Tom

Reputation: 51601

You need to give the VREF= option a list of values. So U needs to be stored into a macro variable. Then you can use %EVAL(), for integers, or %SYSEVALF(), for real values, to calculate the values to pass as the reference lines.

So your GPLOT code will look like:

proc gplot data=DES;
  plot yn*n /vref=( %sysevalf(&u-&r) &r %sysevalf(&u+&r) );
run;

Upvotes: 2

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