[R] Looking for R Equivalent of Gauss Statements
Marlene Mueller
Marlene.Mueller at gmx.de
Thu Sep 4 09:37:58 CEST 2003
R is very similar to Gauss for this kind of task.
Try:
e1 <- x[,23] == 0
e2 <- x[,12] > 1
e3 <- x[,4] < 15
e <- e1 | e2 | e3 # e1 or e2 or e3
x <- x[!e,] # keep if NOT e
Hope that helps,
Marlene
Francisco J. Bido wrote:
> Hi,
>
> I am translating some Gauss code to R. Gauss has an interesting way of
> handling constraints. Observe the following code snipplet:
>
> e1 = x[.,23] .eq 0; @ remove obs with Regular Hours = 0 @
> e2 = x[.,12] .gt 1; @ remove obs with non-regular work status @
> e3 = x[.,4] .lt 15; @ remove obs with agricultural and mining
> industry code (< 15)@
> esum = e1 + e2 + e3;
> e = esum .gt 0; @ remove obs that fail all three of the above tests @
> x = delif(x,e);
>
> I'm hoping that the above is self explanatory. Currently I am using
> the "subset" command in R to compute e1, e2, e3 but the rest is tricky:
> the actual code has several additional constraints and I'm ending up
> with some very ugly buggy code. Is there a straightforward way to do
> this in R?
>
> Thanks,
> -Francisco
>
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>
--
PD Dr. Marlene Müller
Fraunhofer ITWM Kaiserslautern, Abt. Finanzmathematik
mailto:Marlene.Mueller at itwm.fraunhofer.de, Tel/Fax: +49 631 205 4189/4139
http://www.itwm.fhg.de/index.php?abt=fm/employees/mueller&inc=mueller
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