Re: [R] Finding values in one column and

2012-11-28 Thread Berend Hasselman
On 28-11-2012, at 08:00, Berend Hasselman wrote: > . >> I'd like to have R find the data.b$ID in data.a$ID and insert the >> corresponding data.a$valueA and data.a$valueB into the appropriate >> columns in data.b. >> >> How can I do this? > > > data.b <- data.a[which(data.a$ID %in% data.b$

Re: [R] Finding values in one column and

2012-11-27 Thread Berend Hasselman
On 27-11-2012, at 23:17, Steven Ranney wrote: > All - > > I have a data frame > > data.a > IDvalueA valueB > 6 12 12 > 1715 14 > 5818 16 > 9811 12 > 7319 20 > 8419 14 > 5820 14 > 2411 12 > 8115 16 > 2115

Re: [R] Finding values in one column and

2012-11-27 Thread Steven Ranney
(joins) I think the data.table package is > much faster. > > John Kane > Kingston ON Canada > > >> -Original Message- >> From: steven.ran...@gmail.com >> Sent: Tue, 27 Nov 2012 15:28:57 -0700 >> To: jrkrid...@inbox.com >> Subject: Re: [R] Fin

Re: [R] Finding values in one column and

2012-11-27 Thread John Kane
:57 -0700 > To: jrkrid...@inbox.com > Subject: Re: [R] Finding values in one column and > > Thanks. > > Soon after I posted this question, I discovered merge(). > > Steven H. Ranney > > > On Tue, Nov 27, 2012 at 3:26 PM, John Kane wrote: >> Have a look

Re: [R] Finding values in one column and

2012-11-27 Thread arun
Hi, Try ?merge(), ?join() from library(plyr) data.a<-read.table(text=" ID    valueA    valueB 6    12    12 17    15    14 58    18    16 98    11    12 73    19    20 84    19    14 58    20    14 24    11    12 81    15    16 21    15    14 62    14    12 67    13    14 78    13    17 35    10   

Re: [R] Finding values in one column and

2012-11-27 Thread Steven Ranney
Thanks. Soon after I posted this question, I discovered merge(). Steven H. Ranney On Tue, Nov 27, 2012 at 3:26 PM, John Kane wrote: > Have a look at ?merge > > John Kane > Kingston ON Canada > > >> -Original Message- >> From: steven.ran...@gmail.com >> Sent: Tue, 27 Nov 2012 15:17:58 -

Re: [R] Finding values in one column and

2012-11-27 Thread John Kane
Have a look at ?merge John Kane Kingston ON Canada > -Original Message- > From: steven.ran...@gmail.com > Sent: Tue, 27 Nov 2012 15:17:58 -0700 > To: r-help@r-project.org > Subject: [R] Finding values in one column and > > All - > > I have a data frame > > data.a > IDvalueA value