When the macro processor executes a macro program statement that can create a macro variable (such as a %LET statement), the macro processor attempts to change the value of an existing macro variable ...

This information is useful when PROC ASSIGN comprises one step in a larger program that needs to identify just how the ASSIGN procedure terminated. Because _ORASSIG is a standard SAS macro variable, ...

from a macro file, due to a bug in these versions some of the data variables in the worksheet could be overwritten. If the overwritten variables are themselves in the model it is possible that the ...