What kind of variable is it? This shouldn't happen id the variable is numeric.
-----Message d'origine----- De : epidata-list@lists.umanitoba.ca [mailto:epidata-list@lists.umanitoba.ca] Envoyé : vendredi 24 mars 2006 23:40 À : epidata-list@lists.umanitoba.ca Objet : [EpiData-list] second try: order of missing values indocument->codebook
Didn't hear from anyone, so I'm trying again (sorry).
I have been creating a dataset using epidata. I was looking through the documentation->codebook to get a sense of the distribution ofvalues for thevariables. I just noticed that the missing values (.) appear at an almost random point in the otherwise ordered list (in this example,between 9 and 10). I compared the codebook with SAS tables and the data appear to be correct.
tabulation: Freq. Pct. Value Label 2 3.8 3 1 1.9 4 2 3.8 5 6 11.5 7 7 13.5 8 7 13.5 9 6 11.5 . 21 40.4 10
Any ideas why this might happen?
thanks.
Richard Herrell NIH
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