what is the difference between value and invalue statements in SAS?

1
votes

i am studying for the SAS base exam, i come from medical background. I intend to learn SAS clinical. what is the difference between invalue and value statements ?

http://support.sas.com/documentation/cdl/en/proc/61895/HTML/default/viewer.htm#a002473466.htm http://support.sas.com/documentation/cdl/en/proc/61895/HTML/default/viewer.htm#a002473472.htm

1
sas

1 Answers

4
votes

The VALUE statement in PROC FORMAT is used to define a FORMAT. The INVALUE statement is used to define an INFORMAT.

In SAS you use a FORMAT to convert values into text and an INFORMAT to convert text into values. You can use a FORMAT with the PUT statement or the PUT(), PUTN() or PUTC() functions. You can attach a format to a variable using a FORMAT statement. You can use an INFORMAT with the INPUT statement or the INPUT(), INPUTN() or INPUTC() functions. You can attach an informat to a variable using the INFORMAT statement.