I'm getting this error message:
nms-names(data)[grep(vars,names(data))]
Warning message:
In grep(vars, names(data)) :
argument 'pattern' has length 1 and only the first element will be used
Is there a way around this?
On Thu, Jul 19, 2012 at 6:17 PM, Rui Barradas ruipbarra...@sapo.pt wrote:
I'm still getting the message (if this is what you were suggesting I try).
The data set I'm using has many more columns other than these variables;
could that be a problem? I didn't think it would affect it.
pattern - L[1-8][12]
nms-names(data)[grep(vars,names(data))]
Warning message:
In
) 1249 705 450
-Original Message-
From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On
Behalf Of Lib Gray
Sent: 20 July 2012 01:17
To: Rui Barradas
Cc: r-help
Subject: Re: [R] Subsetting problem data, 2
I'm still getting the message (if this is what you were
ruipbarra...@sapo.pt
Cc: r-help r-help@r-project.org
Sent: Thursday, July 19, 2012 8:17 PM
Subject: Re: [R] Subsetting problem data, 2
I'm still getting the message (if this is what you were suggesting I try).
The data set I'm using has many more columns other than these variables;
could
Hello,
I didn't give enough information when I sent an query before, so I'm trying
again with a more detailed explanation:
In this data set, each patient has a different number of measured variables
(they represent tumors, so some people had 2 tumors, some had 5, etc). The
problem I have is that
Hello,
Try the following. The data is your example of Patient A through E, but
from the output of dput().
dat - structure(list(Patient = structure(c(1L, 1L, 1L, 1L, 1L, 2L,
2L, 3L, 3L, 3L, 3L, 4L, 4L, 4L, 4L, 5L, 5L, 5L), .Label = c(A,
B, C, D, E), class = factor), Cycle = c(1L, 2L, 3L,
4L,
Hello,
I guess so, and I can save you some typing.
vars - sort(apply(expand.grid(L, 1:8, 1:2), 1, paste, collapse=))
Then use it and see the result.
Rui Barradas
Em 20-07-2012 00:00, Lib Gray escreveu:
The variables are actually L11, L12, L21, L22, ... , L81, L82. Would just
creating a
Hello,
Sorry, forgot about that. It's trickier to write code without a dataset
to test it.
Try
pattern - L[1-8][12]
and after the grep print nms to see if it's right.
Rui Barradas
Em 20-07-2012 00:33, Lib Gray escreveu:
I'm getting this error message:
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