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st: parse last command from ado file?


From   <Stefan.Gawrich@hlpug.hessen.de>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: parse last command from ado file?
Date   Tue, 3 Nov 2009 17:31:12 +0100

Hi Statalisters,

working in the review window is it possible to access the last command
from an ado file? 

My example:
I create a lot of bivariate tables from the review window and e.g. later
copy them to a spreadsheet. 
Often tables are too wide but fit with rows and columns interchanged.

sysuse auto
tab rep78 trunk // too wide
tab trunk rep78 // fits

I thought about sparing some typing by writing a small ado that swaps
rows and columns of the last shown table. 

For this I need to parse the last command inside the ado. If for
instance I could have it in a global (without typing the next line, of
course)
global tabcmd "tab rep78 trunk, row col"


...I could write a program like this:
program define tt
local commapos = strpos("$tabcmd",",")
local options = substr("$tabcmd",`commapos',.)
local commapos1 = `commapos' - 1
local tabc = substr("$tabcmd'",1, `commapos1')
di "`tabc'"
local tab : word 1 of `tabc'
local var1 : word 3 of `tabc'
local var2 : word 2 of `tabc'
`tab' `var1' `var2' `options'
end

and exchange rows and columns of the last table by simply typing "tt".
(A more sophisticated program could also swap row and column options and
so on)


Regards 

Stefan



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