[R] Automatic routine - help

[BXC (Bendix Carstensen)]

for (j in 1:n) df[,j] <- pmin( pmax( df[,j], 0 ), 1 )

should do the job.

Bendix Carstensen

----------------------
Bendix Carstensen
Senior Statistician
Steno Diabetes Center
Niels Steensens Vej 2
DK-2820 Gentofte
Denmark
tel: +45 44 43 87 38
mob: +45 30 75 87 38
fax: +45 44 43 07 06
bxc at steno.dk
www.biostat.ku.dk/~bxc
----------------------



> -----Original Message-----
> From: r-help-bounces at stat.math.ethz.ch 
> [mailto:r-help-bounces at stat.math.ethz.ch] On Behalf Of Monica 
> Palaseanu-Lovejoy
> Sent: Wednesday, June 23, 2004 11:07 AM
> To: r-help at stat.math.ethz.ch
> Subject: [R] Automatic routine - help
> 
> 
> Hi,
> 
> I would like to write a little automatic routine in R, but i am a too 
> much of a beginner for that. I will appreciate any help 
> regarding this 
> particular problem.
> 
> Let's suppose I have a data.frame with j columns (from 1 to n) and i 
> rows (from 1 to p). I would like to write a procedure which reads 
> every column j (j from 1 to n) and compare each value with the 
> interval [0,1]. If z(i,j) is less than 0, then replace z(i,j) 
> with 0. If z(i,j) 
> is greater than 1, then replace z(i,j) with 1. If z(i,j) is 
> inside the 
> interval [0,1] then don't change. In the end I would like to have a 
> new data.frame with the new values. 
> 
> I am not sure how complicated or long such a procedure might be, 
> so I will be very grateful for any help.
> 
> Thank you in advance,
> 
> Monica
> 
> ______________________________________________
> R-help at stat.math.ethz.ch mailing list 
> https://www.stat.math.ethz.ch/mailman/listinfo> /r-help
> PLEASE 
> do read the posting guide! 
> http://www.R-project.org/posting-guide.html
>