On Thursday 29 of April 2004 07:49, Susana Bird wrote:
> my problem is following. I know Stata, but currently I have to
use R. Could You please help in finding the analogy to R.
I am too clueless about Stata, but I have another hint (check
"Introduction to R" whether I have guessed correctly for what
you want to do):
> g byte city=0
I have no clue what does it is supposed to mean (initialize city
with zeroes? But how can you test for its value then?).
> replace city=1 if city==12&year==2000
What about this?
city <- city[city == "12" & year == "2000"]
Take a look at this example:
> city <- cbind(rnorm(100,50,10),0)
> city
> city[,2] <- as.logical(city[,1]<"50")
> city
Does it make any sense to you?
Matěj
--
Matej Cepl, http://www.ceplovi.cz/matej
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-- Winston Churchill
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