how to load the put format? ! ERROR 48-59: The format $Z was not found or could not be loaded.

[hellohere]

Simple use put function, varx=put(var, z6.); it complains. How to load the format?!

[Kurt_Bremser · Accepted solution]

This means that your variable var is of type character (Maxim 3: Know Your Data!), so SAS thinks you mis-spelled the format name.

[Astounding]

Since VAR is already character, you can replace it without needing to create VARX.

var = put ( input(var, 6.), z6.);

[ballardw]

Or some ugly code and not actually recommended unless you are looking for an obfuscation of code award using just character functions.

data example;
   length x $ 6;
   x='23';
   x= cats(repeat('0',6-length(x)-1),x);
run;