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st: right-skewed proportion data

From   Jörg Eulenberger <[email protected]>
To   [email protected]
Subject   st: right-skewed proportion data
Date   Sat, 07 Jul 2012 08:50:16 +0200

Dear Statalisters,

i have a problem with right-skewed dependvariable. The range of
this variable are 0-1 (proportion data 0%-100%). The Distribution looks like poisson, but the values are not discret.

I created the dependvariable by counting the missings (item-non-responce) row wise. Then i
standardize this variable by the number of  all possible variables
(automatic filtering causes different count of vars).

local varnumber `: word count `r(varlist)''
gen varnumber_without_filter_missing = `varnumber'-filter_missing
gen item_non_response_percent = (100/varnumber_without_filter_missing)*number_item_non_response
gen item_non_response_percent_r = item_non_response_percent /100    /* range 0-1 */

I found the article handling
proportion data. But what is the right way to handling a right-skewed
(proportion) dependvar? 

Any suggestions?

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