topic Missing Value Imputation in SAS Programming

Missing Value Imputation

dkanand86 — Mon, 22 Aug 2016 21:43:33 GMT

Hi Everyone,

I have some variables for which i have to impute the missing values.

Please provide your comments as to what kind of techniques are available to perform this task, thanks

Regards,

Reeza — Mon, 22 Aug 2016 21:50:53 GMT

Look at PROC MI?

PGStats — Tue, 23 Aug 2016 02:38:23 GMT

You can replace missing values with (in approximate order of complexity):

a constant (e.g. the mean, median, etc. of your variable)
a predicted value based on other non missing variables (e.g. predict missing weight from the height)
an interpolated value (in time series)
a random value from your variable assumed distribution
a set of random values from your variable assumed distribution (multiple imputation)