How to draw Normal density in SAS

/* Here we will use function PDF('NORMAL', x, mu, sigma) to get pdf

   More details about this function:

   http://support.sas.com/documentation/cdl/en/lrdict/64316/HTML/default/viewer.htm#a000270634.htm

*/

%let a1=1;

%let b1=1;

%let a2=-1;

%let b2=1;

%let a3=0;

%let b3=1;

data pdf;

      do i=-5 to 5 by 0.02;

   pdf1=pdf('Normal', i, &a1, &b1);

   pdf2=pdf('Normal', i, &a2, &b2);

   pdf3=pdf('Normal', i, &a3, &b3);

   output;

   end;

run;

proc print data=pdf;

run;

goptions reset=all;

symbol1 interpol=j  color=red  width=1  value=none;

symbol2 interpol=j  color=blue width=2  value=none;

symbol3 interpol=j  color=gree width=3  value=none;

axis1   label=(angle=90  'Density')  order=(0 to .5 by .1) minor=none;

axis2   label=('i')      order=(-5 to 5 by 1)  minor=none;;

legend label=none   position=(top right inside)  mode=share;

proc gplot data=pdf;

      plot   pdf1*i  pdf2*i  pdf3*i /overlay 

                                      vaxis=axis1 

                                      haxis=axis2 

                                      legend=legend;

run;quit;