st: method needed to alternate the order of variables

[Joseph Wagner <joseph.wagner@wright.edu>]

I have a dataset with variables that end in an 'x' and a 'y' but follow 
a pattern such that:

idcode li_x lir_x li2_x li1_x id_x ptb_x pm_x pog_x . . .
. . . li_y lir_y li2_y li1_y id_y ptb_y pm_y pog_y

I have been asked to re-sort the variables so that they follow an "xy xy 
xy" pattern:

idcode li_x li_y lir_x lir_y li2_x li2_y li1_x li1_y id_x id_y ptb_x 
ptb_y pm_x pm_y pog_x pog_y

-move- would be straightforward but I have 137 pairs of variables and I 
have a feeling i will need to do this again in the future. I suggested 
-aorder- since this would place the variables in alphabetic order like 
"var1x var1y var2x var2y" and so forth.  Unfortunately, the person who 
needs this dataset re-ordered claims that the data is needed by someone 
(using SAS) who must have the data in a a particular order. 
I am using version 8.

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