http://spssx-discussion.165.s1.nabble.com/Imputation-of-categorical-missing-values-tp5714496p5724119.html
I have successfully used her macro many times. After executing the macro
On Thu, 23 Jan 2014 14:06:06 -0800, M.H. <
>I know that post is about 2 years now. But I have some experience in PMM
>(predictive mean matching) and for those who have both categorical/binary
>and continuous data, I would never recommend multiple regression method.
>Normally, you should go to ->multiple imputation ->impute missing data
>values, ->custom (MCMC) and then select PMM. It's like a hot deck
>imputation, and it uses real values from your data. The difference is that
>you use regression method, you may have values like 1.35547226 or 2.38446341
>even though SPSS will round the value at 1 and 2, respectively, because
>obviously your categorical variables do not normally contain any numbers
>after comma. But when you perform a histogram, you see that it looks ugly.
>If you variable can only take on values like 0, 1, 2, 3, 4, and 5, PMM is
>excellent because it gives you exactly the values of 0, 1, 2, 3, 4, and 5,
>according to the matching. Some caveat of PMM or hot deck concerns small
>data (both hot deck and PMM) because it is difficult to do the data matching
>(or, to find a "donor" if you're familiar with the literature) when you have
>few cases.
>See this article for further discussion : A Review of Hot Deck Imputation
>for Survey Non-response
>Rebecca R. Andridge and Roderick J. A. Little
><
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3130338/> .
>
>Now that I am at it, is there any expert users here ?
>
>I want to work with hot deck imputation. Normally SPSS doesn't have it, but
>Teresa Myers in the article Goodbye, Listwise Deletion: Presenting Hot Deck
>Imputation as an Easy and Effective Tool for Handling Missing Data
><
http://www.afhayes.com/public/hotdeck.pdf> presents the HD imputation,
>and at the end (.ie., Appendix) of the paper, gives the macro for creating
>the hot deck command in SPSS.
>
>It is written "Execute the command set below in an SPSS syntax window
>exactly as is". And yet I can't get it worked (I use spss 20). After
>executing the syntax, nothing happens. (note there is two pages for the
>entire syntax).
>
>Any ideas ? Thanks.
>
>
>
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