Re: [R] how to create data.frame with dynamic count of values
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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and provide commented, minimal, self-contained, reproducible code.
--
-
Don MacQueen
Lawrence Livermore National Laboratory
Livermore, CA, USA
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Re: [R] how to create data.frame with dynamic count of values
I don't understand what you're asking for.
But if your goal is to create N1 through N15 in order to use them to
fill a data frame, then it can be much simpler:
items - 15
VarSize - 10
tmp - matrix(0,nrow=VarSize,ncol=items)
tmp - data.frame(tmp)
names(tmp) - paste('N',seq(items),sep='')
## of course, this next only works if VarSize = length(letters)
tmp$X1 - letters[1:VarSize]
You could instead start with
tmp - matrix( rnorm(VarSize*items) , nrow=VarSize , ncol=items)
-Don
At 5:17 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
__
R-help@stat.math.ethz.ch mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
--
--
Don MacQueen
Environmental Protection Department
Lawrence Livermore National Laboratory
Livermore, CA, USA
__
R-help@stat.math.ethz.ch mailing list
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
Re: [R] how to create data.frame with dynamic count of values
Consider using a list: N - list() for (i in 1:15) N[[paste(N, i, sep='')]] - numeric(10) N $N1 [1] 0 0 0 0 0 0 0 0 0 0 $N2 [1] 0 0 0 0 0 0 0 0 0 0 $N3 [1] 0 0 0 0 0 0 0 0 0 0 $N4 [1] 0 0 0 0 0 0 0 0 0 0 $N5 [1] 0 0 0 0 0 0 0 0 0 0 $N6 [1] 0 0 0 0 0 0 0 0 0 0 $N7 [1] 0 0 0 0 0 0 0 0 0 0 $N8 [1] 0 0 0 0 0 0 0 0 0 0 $N9 [1] 0 0 0 0 0 0 0 0 0 0 $N10 [1] 0 0 0 0 0 0 0 0 0 0 $N11 [1] 0 0 0 0 0 0 0 0 0 0 $N12 [1] 0 0 0 0 0 0 0 0 0 0 $N13 [1] 0 0 0 0 0 0 0 0 0 0 $N14 [1] 0 0 0 0 0 0 0 0 0 0 $N15 [1] 0 0 0 0 0 0 0 0 0 0 # access a specific element of the list N$N10 [1] 0 0 0 0 0 0 0 0 0 0 On 12/8/06, Knut Krueger [EMAIL PROTECTED] 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 __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. -- Jim Holtman Cincinnati, OH +1 513 646 9390 What is the problem you are trying to solve? [[alternative HTML version deleted]] __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
