How to adjust degree of freedom in Chi-Square Goodness-of-Fit Tests?

[eltrigo]

I want to check p-value in chi-Square test, and this is my code.

data dataA;
  input Ball $ observed;
  datalines;
A 1
B 0
C 0
D 0
E 9
;
run;

proc freq data=dataA;
	tables Ball / chisq;
	weight observed;
run;

Here is a problem. This Chi-square test did not include when value is 0. Actually, DF is 4, but now it's 1.

This calculation is what I want (Chi-square should be 31), including 0 values.

How can I include the category with 0 value so that DF becomes 4, not 1? and Chi-squared becomes 31, not 6.4?

Thanks!!

[SAS_Rob · Accepted solution]

You should use the ZEROS option on the WEIGHT statement to include those cells with a zero count.

proc freq data=dataA;
tables Ball / chisq;
weight observed/zeros;
run;