The PLOT Procedure

Example 10: Excluding Observations That Have Missing Values

Procedure features:

PROC PLOT statement option

NOMISS

Data set:

EDUCATION

This example shows how missing values affect the calculation of the axes.

Program

options nodate pageno=1 linesize=80 pagesize=35;

proc sort data=education;
   by region;
run;

proc plot data=education nomiss;

    by region;

    plot expenditures*dropoutrate='*' $ state / href=28.6;
    title 'Plot of Dropout Rate and Expenditure Per Pupil';
run;

Output

PROC PLOT produces a plot for each BY group. Only the plot for the
Northeast
is shown. Because
New York
has a missing value for Expenditures, the observation is excluded and PROC PLOT does not use the value 35 for DropoutRate to calculate the horizontal axis. Compare the horizontal axis in this output with the horizontal axis in the plot for Northeast in Adding Labels to a Plot .

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