Informats And Formats In Base SAS
Informats in Base SAS is used to tell SAS how to read a variable whereas Formats in Base SAS is used to tell SAS how to display or write values of a variable.
Informats is basically used when you read in sample data which is being created using CARDS/DATALINES statement or read or import data from either an external file (Text/Excel/CSV).
Formats can be used in both Data Steps and PROC Steps whereas Informats can be used only in Data Steps.
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