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st: Re: rescaling variables
ssc install center
bys country: center variable, gen(newvariable) standardize
replace newvariable=0 if newvariable==.
If there is no variance for a particular country, the deviations from
means are all zero, so
a standardized value of zero is appropriate.
Kit Baum, Boston College Economics
An Introduction to Modern Econometrics Using Stata:
On Aug 8, 2006, at 2:33 AM, Suryadipta t wrote:
Can anyone point me towards the correct command for direct
conversion of numbers into their standard normals thereby
circumventing the problem of dividing by zeros? Thanks as
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