[R] how to create data.frame with dynamic count of values

[Don MacQueen]

Perhaps you didn't want a dataframe with columns N1 to N15 in it.

Perhaps the assign() function is what you are looking for. Something 
similar to:

nams <- paste('N',1:15,sep='')
for (nm in nams) assign(nm,rep(0,VarSize))

-Don

At 10:14 PM +0100 12/8/06, Knut Krueger wrote:
>Hello R-Group
>
>I found how to fill the data.frame ->
>http://finzi.psych.upenn.edu/R/Rhelp02a/archive/70843.html
>
>N1 <- rnorm(4)
>N2 <- rnorm(4)
>N3 <- rnorm(4)
>N4 <- rnorm(4)
>X1 <- LETTERS[1:4]
>###################
>nams <- c(paste("N", 1:4, sep = ""), "X1")
>dat <- data.frame(lapply(nams, get))
>names(dat) <- nams
>dat
>
>
>But I need also to create a dynamic count of numeric vectors
>items = 15
>VarSize <-10
>
>N1 <- rep(0,VarSize)
>N2 <- rep(0,VarSize)
>N3 <- rep(0,VarSize)
>N4 <- rep(0,VarSize)
>N5 <- rep(0,VarSize)
>...
>N15<- rep(0,VarSize)  # 15 items
>
>
>Thank you in advance
>Knut
>
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-- 
---------------------------------
Don MacQueen
Lawrence Livermore National Laboratory
Livermore, CA, USA