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Re: st: Stata and R


From   Tirthankar Chakravarty <tirthankar.chakravarty@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Stata and R
Date   Tue, 25 Aug 2009 17:35:32 +0100

The Mata functions -select()- and -length()- are closest in spirit. For example:
*********************************
sysuse auto, clear
mata
st_view(X=.,., ("price", "mpg", "weight", "length"))
Y = select(X, X[., 1]:>mean(X[.,1]))
length(Y)
end
*********************************
keeps the rows of the data matrix for which the price of the car is
greater than the mean.

T

On Tue, Aug 25, 2009 at 5:12 PM, Frank Peter<frankpeter@safe-mail.net> wrote:
> Dear Statalister,
>
> Please, I am new to Stata, I am trying to replicate some R commands in Stata. I will like to know the equivalent of length and subset in Stata.
>
> Thanks.
>
> Frank
> *
> *   For searches and help try:
> *   http://www.stata.com/help.cgi?search
> *   http://www.stata.com/support/statalist/faq
> *   http://www.ats.ucla.edu/stat/stata/
>



-- 
To every ω-consistent recursive class κ of formulae there correspond
recursive class signs r, such that neither v Gen r nor Neg(v Gen r)
belongs to Flg(κ) (where v is the free variable of r).

*
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