On Jul 8, 2009, at 12:17 PM, tathta wrote:
From an email suggestion, here are two sample datasets, and my
ideal output:
dataA <- data.frame(unique.id=c("A","B","C","B"),x=11:14,y=5:2)
dataB <-
data
.frame(unique.id=c("A","B","A","B","A","C","D","A"),x=27:20,y=22:29)
## mystery operation(
>From an email suggestion, here are two sample datasets, and my ideal output:
dataA <- data.frame(unique.id=c("A","B","C","B"),x=11:14,y=5:2)
dataB <-
data.frame(unique.id=c("A","B","A","B","A","C","D","A"),x=27:20,y=22:29)
## mystery operation(s) happen here
## ideal output would be:
dat
On Jul 8, 2009, at 10:09 AM, tathta wrote:
I have two dataframes, the first column of each dataframe is a
unique id
number (the rest of the columns are data variables).
I would like to figure out how many times each id number appears in
each
dataframe.
So far I can use:
length( match (da
Close...
The output I'm looking for is more like this:
output <-
data.frame(unique.id=c(1,3,5,7,9),N.in.x=c(2,3,1,2,1),N.in.y=c(0,1,3,1,1))
The first column can be gotten using a small change to the first table line:
table ( x [ which ( x %in% x ) ] ) ##the 3rd "x" used to be a "y"
but
SA/Washington, DC david.huf...@csosa.gov
-
-Original Message-
From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On
Behalf Of tathta
Sent: Wednesday, July 08, 2009 11:10 AM
To: r-help@r-project.org
Subject: [R] matching each row
I have two dataframes, the first column of each dataframe is a unique id
number (the rest of the columns are data variables).
I would like to figure out how many times each id number appears in each
dataframe.
So far I can use:
length( match (dataframeA$unique.id[1], dataframeB$unique.id) )
6 matches
Mail list logo
