Working with Time Series Data: Using PROC PLOT

Using PROC PLOT

The following statements use the PLOT procedure in Base SAS to plot CPI in the USCPI data set against DATE. (The data set plotted contains more observations than shown in the previous examples.) The plotting character used is a plus sign (+).

title "Plot of USCPI Data";
   proc plot data=uscpi;
   plot cpi * date = '+' / vaxis= 129 to 137 by 1;
run;

The plot is shown in Figure 3.13.

Figure 3.13 Plot of Monthly CPI Over Time

Plot of USCPI Data

                     Plot of cpi*date.  Symbol used is '+'.                     
                                                                                
  137 +                                                                         
U     |                                                                         
S     |                                                          +              
  136 +                                                     +                   
C     |                                                 +                       
o     |                                             +                           
n 135 +                                        +                                
s     |                                +    +                                   
u     |                                                                         
m 134 +                                                                         
e     |                   +    +   +                                            
r     |                                                                         
  133 +                                                                         
P     |               +                                                         
r     |                                                                         
i 132 +                                                                         
c     |           +                                                             
e     |                                                                         
  131 +                                                                         
I     |                                                                         
n     |      +                                                                  
d 130 +  +                                                                      
e     |                                                                         
x     |                                                                         
  129 +                                                                         
      --+-------------+-------------+-------------+-------------+-------------+-
     MAY1990       AUG1990       DEC1990       MAR1991       JUN1991     OCT1991
                                                                                
                                         date