Re: [R] Newbie Question on making subsets for every element of a table column
On Mon, Apr 23, 2012 at 02:33:22PM -0700, cyclondude wrote:
> Yes. That is what I was looking for. Is there a simple way to (in this
> scenario)
>
>
> > out[[1]]
>
> v1 v2
> 1 a 1
> 4 a 2
> 7 a 3
>
> > a <- out[[1]]
>
> for each one?
Hi.
If you want to generate variable names by a script, then try
dat <- expand.grid(v1=letters[1:3], v2=1:3)
for (var in unique(as.character(dat$v1))) {
assign(var, subset(dat, v1 == var))
}
ls() # [1] "a" "b" "c" "dat" "var"
a
v1 v2
1 a 1
4 a 2
7 a 3
b
v1 v2
2 b 1
5 b 2
8 b 3
Hope this helps.
Petr Savicky.
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Re: [R] Newbie Question on making subsets for every element of a table column
There are, but it's generally considered better style to keep them all in a single list and use lapply() if you want to do things to each element. Michael On Mon, Apr 23, 2012 at 5:33 PM, cyclondude wrote: > Yes. That is what I was looking for. Is there a simple way to (in this > scenario) > > >> out[[1]] > > v1 v2 > 1 a 1 > 4 a 2 > 7 a 3 > >> a <- out[[1]] > > for each one? > > Thanks! > > -- > View this message in context: > http://r.789695.n4.nabble.com/Newbie-Question-on-making-subsets-for-every-element-of-a-table-column-tp4581228p4581775.html > Sent from the R help mailing list archive at Nabble.com. > > __ > R-help@r-project.org 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. __ R-help@r-project.org 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.
Re: [R] Newbie Question on making subsets for every element of a table column
Yes. That is what I was looking for. Is there a simple way to (in this scenario) > out[[1]] v1 v2 1 a 1 4 a 2 7 a 3 > a <- out[[1]] for each one? Thanks! -- View this message in context: http://r.789695.n4.nabble.com/Newbie-Question-on-making-subsets-for-every-element-of-a-table-column-tp4581228p4581775.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org 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.
Re: [R] Newbie Question on making subsets for every element of a table column
On Mon, Apr 23, 2012 at 10:58:26AM -0700, cyclondude wrote: > Hello, very new to R, playing with tables, and I am trying to do > > x <- subset(data, columnlabel == x) > > for every element in my column that I could find by using > > table (data [,"columnlabel"]) Hi. The following may be close to what you require. #prepare some data dat <- expand.grid(v1=letters[1:3], v2=1:3) dat v1 v2 1 a 1 2 b 1 3 c 1 4 a 2 5 b 2 6 c 2 7 a 3 8 b 3 9 c 3 out <- split(dat, dat$v1) #the first two groups are out[[1]] v1 v2 1 a 1 4 a 2 7 a 3 out[[2]] v1 v2 2 b 1 5 b 2 8 b 3 Hope this helps. Petr Savicky. __ R-help@r-project.org 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.
[R] Newbie Question on making subsets for every element of a table column
Hello, very new to R, playing with tables, and I am trying to do x <- subset(data, columnlabel == x) for every element in my column that I could find by using table (data [,"columnlabel"]) I'd appreciate any useful help and I'm sorry if I didn't get the terminology perfect. Thanks. -- View this message in context: http://r.789695.n4.nabble.com/Newbie-Question-on-making-subsets-for-every-element-of-a-table-column-tp4581228p4581228.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org 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.
