Re: [R] help to indexing data frame

2010-05-21 Thread Mohan L
On Fri, May 21, 2010 at 11:27 AM, Mohan L l.mohan...@gmail.com wrote: Dear All, I have data some thing like this: sample StateJan Feb Mar A 1 1 1 B1298 12931294 C00 0 D55 5 E 18

[R] help to indexing data frame

2010-05-20 Thread Mohan L
Dear All, I have data some thing like this: sample StateJan Feb Mar A 1 1 1 B1298 12931294 C00 0 D55 5 E 18 18 18 I need to multiply Jan column *1000 and divided by the same

[R] Help with indexing

2009-11-21 Thread Dana Sevak
Dear R Helpers, I am missing something very elementary here, and I don't seem to get it from the help pages of the ave, seq and seq_along functions, so I wonder if you could offer a quick help. To use an example from an earlier post on this list, I have a dataframe of this kind: dat =

Re: [R] Help with indexing

2009-11-21 Thread jim holtman
try this: # create a factor and then convert back to numeric x$nb - as.integer(factor(x$name, levels=unique(x$name))) + 99 x name freq nb 1 Mary1 100 2 Mary2 100 3 Mary3 100 4 Sam1 101 5 Sam2 101 6 John1 102 7 John2 102 8 John3 102 9 John4 102 On Sat,

Re: [R] Help with indexing

2009-11-21 Thread William Dunlap
Bill Dunlap Spotfire, TIBCO Software wdunlap tibco.com -Original Message- From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On Behalf Of Dana Sevak Sent: Saturday, November 21, 2009 4:00 PM To: r-help@r-project.org Subject: [R] Help with indexing Dear