Re: [R] easy way to cap a data frame to a max value

2008-11-07 Thread Gabor Grothendieck
A few more. These each have the advantage of not destroying the original data frame: # based on Erik's DF2 <- replace(DF, DF > 10, 10) # based on my previous one DF2 <- replace(DF, TRUE, pmin(10, unlist(DF))) DF2 <- (DF + 10)/2 - abs(DF - 10)/2 On Fri, Nov 7, 2008 at 4:38 PM, Gabor Grothendiec

Re: [R] easy way to cap a data frame to a max value

2008-11-07 Thread Grey Moran
On Fri, Nov 7, 2008 at 4:46 PM, Grey Moran <[EMAIL PROTECTED]> wrote: > Thanks to all who replied - lots of good ideas. > The one I prefered at the end was: > junk[junk > 5] <- 5 > > Grey > > On Fri, Nov 7, 2008 at 4:38 PM, Gabor Grothendieck > <[EMAIL PROTECTED]> wrote: >> That should be pmin: >>

Re: [R] easy way to cap a data frame to a max value

2008-11-07 Thread Grey Moran
Thanks to all who replied - lots of good ideas. The one I prefered at the end was: junk[junk > 5] <- 5 Grey On Fri, Nov 7, 2008 at 4:38 PM, Gabor Grothendieck <[EMAIL PROTECTED]> wrote: > That should be pmin: > > On Fri, Nov 7, 2008 at 4:25 PM, Gabor Grothendieck > <[EMAIL PROTECTED]> wrote: >> A

Re: [R] easy way to cap a data frame to a max value

2008-11-07 Thread Gabor Grothendieck
That should be pmin: On Fri, Nov 7, 2008 at 4:25 PM, Gabor Grothendieck <[EMAIL PROTECTED]> wrote: > Assuming the data frame is all numeric: > > DF[] <- pmax(10, unlist(DF)) > > > On Fri, Nov 7, 2008 at 4:16 PM, Grey Moran <[EMAIL PROTECTED]> wrote: >> Hello, >> >> I have some rather large matrice

Re: [R] easy way to cap a data frame to a max value

2008-11-07 Thread Erik Iverson
Are they objects of class "matrix" or "data.frame"? You seem to make reference to both, but know there is a difference. Try: junk[junk > 5] <- 5 Grey Moran wrote: Hello, I have some rather large matrices. Is there a way (without having to loop) to cap all the values of a data frame to a g

Re: [R] easy way to cap a data frame to a max value

2008-11-07 Thread Gabor Grothendieck
Assuming the data frame is all numeric: DF[] <- pmax(10, unlist(DF)) On Fri, Nov 7, 2008 at 4:16 PM, Grey Moran <[EMAIL PROTECTED]> wrote: > Hello, > > I have some rather large matrices. Is there a way (without having to > loop) to cap all the values of a data frame to a given ceiling? > E.g. >

[R] easy way to cap a data frame to a max value

2008-11-07 Thread Grey Moran
Hello, I have some rather large matrices. Is there a way (without having to loop) to cap all the values of a data frame to a given ceiling? E.g. junk <- cbind(c(1,2,3,4,5),c(2,4,6,8,10)) > junk [,1] [,2] [1,]12 [2,]24 [3,]36 [4,]48 [5,]5 10 >" replace a