[R] a question about the computation of expression

PIKAL Petr petr.pikal at precheza.cz
Fri Jan 4 10:32:24 CET 2013


Hi

> -----Original Message-----
> From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-
> project.org] On Behalf Of meng
> Sent: Friday, January 04, 2013 8:00 AM
> To: R help
> Subject: [R] a question about the computation of expression
> 
> Hi all:
> I have a question about the computation of expression:
> y = 1+(2x1+2)-3*(5x1-1)+(3x2+3)-2*(x2-1)
> 
> The result of y is:
> y = 11-13x1+x2
> 
> How can I compute the result of y via R function?

Dou you have x1 and x2? If yes and they are vectors with the same length

y = 11-13*x1+x2

shall do the computation.

Or maybe I did not understand what do you want.

Regards
Petr

> 
> Many thanks!
> 
> My best.
> 
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> 
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