运行后出现这个错误提示:
NOTE: Chi-square statistics and degrees of freedom are only valid when the
table of observed frequencies is an ordinary two-way contingency table.
WARNING: 208 observations were deleted due to missing values.
ERROR: The table has too few valid active rows.
NOTE: The SAS System stopped processing this step because of errors.
WARNING: The data set WORK.C may be incomplete. When this step was stopped
there were 0 observations and 14 variables.
NOTE: The PROCEDURE CORRESP used 0.07 seconds.
The reason is that all values for variable x14 are missing.
Therefore, there is no input observation for proc corresp after all missing observations are deleted.