Check For Null Values In Sas 🎯 Tested

total_miss = cmiss(of _all_); /* Checks every variable in the row */ Use code with caution. Copied to clipboard

Use a period to check for standard missing values. if age = . then flag = "Missing"; Use code with caution. Copied to clipboard Check For Null Values In Sas

The most versatile way to check for a missing value in a DATA step is the MISSING() function, which works for both numeric and character data. total_miss = cmiss(of _all_); /* Checks every variable

Note: To capture special missing values (like .A through .Z or ._ ), use if variable_name <= .z . then flag = "Missing"; Use code with caution

If you need to count how many fields are missing across a row, use these specialized functions:

Counts missing values for mixed data types without requiring type conversion.

Use a blank space enclosed in quotes. if name = ' ' then flag = "Missing"; Use code with caution. Copied to clipboard 2. Checking Multiple Variables at Once