PROC SGPLOT provides a simple way to make a variety of scatter plots. This example is taken from Example 50.4 of Chapter 50, The LOESS Procedure. The following statements create a SAS data set that contains information about differences in ocean pressure over time:

   data ENSO;
      input Pressure @@;
      Year = _n_ / 12;
      datalines;
   12.9  11.3  10.6  11.2  10.9   7.5   7.7  11.7
   
   ... more lines ...   

   ;

The following statements create a scatter plot of points along with a penalized B-spline fit to the data and produce Figure 21.34:

   proc sgplot data=enso noautolegend;
      title 'Atmospheric Pressure Differences Between '
            'Easter Island and Darwin, Australia';
      pbspline y=pressure x=year;
   run;

Figure 21.34 Penalized B-Spline Fit with PROC SGPLOT

See Chapter 90, The TRANSREG Procedure, for more information about penalized B-splines. Also see the section Grouped Scatter Plot with PROC SGPLOT and Figure 21.12 for an example of a scatter plot with groups of observations.