Re: [R] Need help on dataframe

2013-01-05 Thread Mario Bourgoin
Given the data: dat1<-read.table(header=TRUE,text=" ID V1 V2 V3 V4 16532 23221 36532 412 15 32 56832 63241 76533 812 15 31 96533 103275 116

Re: [R] Need help on dataframe

2013-01-05 Thread arun
HI, Sorry, there was a mistake, which I noticed after seeing David's post. dat1<-read.table(text=" ID  V1  V2  V3  V4 1    6    5    3    2 2    3    2    2    1 3    6    5    3    2 4    12  15  3    2 5    6    8    3    2 6    3    2    4    1 7    6    5    3    3 8    12  15  3    1 9    6   

Re: [R] Need help on dataframe

2013-01-05 Thread arun
HI, May be this helps: dat1<-read.table(text=" ID  V1  V2  V3  V4 1    6    5    3    2 2    3    2    2    1  3    6    5    3    2 4    12  15  3    2  5    6    8    3    2 6    3    2    4    1  7    6    5    3    3 8    12  15  3    1  9    6    5    3    3 10    3    2    7    5 

Re: [R] Need help on dataframe

2013-01-05 Thread arun
Hi, One more way: dat1<-read.table(text=" ID  V1  V2  V3  V4 1    6    5    3    2 2    3    2    2    1 3    6    5    3    2 4    12  15  3    2 5    6    8    3    2 6    3    2    4    1 7    6    5    3    3 8    12  15  3    1 9    6    5    3    3 10    3    2    7    5 11    6    5   

Re: [R] Need help on dataframe

2013-01-05 Thread David L Carlson
ect.org [mailto:r-help-bounces@r- > project.org] On Behalf Of John Kane > Sent: Saturday, January 05, 2013 11:23 AM > To: Simonas Kecorius; r-help@r-project.org > Subject: Re: [R] Need help on dataframe > > Well, a rather simple-minded, brute force approach would be to add a >

Re: [R] Need help on dataframe

2013-01-05 Thread John Kane
Well, a rather simple-minded, brute force approach would be to add a factor variable to the data frame and use aggregate on it. I am sure there are better ways but this will work. EXAMPLE ### xx <- data.frame(aa =1:24, b = matrix(sample(c(1,2,3,4,5,6), 72, replace = TRUE