Missing Value Imputation

[dkanand86]

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]

Look at PROC MI?

[PGStats]

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

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