Re: [R] Random numbers for a group

On 15-Dec-09 13:35:36, Jorge Ivan Velez wrote: > Dear Maithili, > Here are two suggestions: > ># data set > x <- read.table(textConnection("Name no_of_instances > AAA 12 > AA17 > A 0 > BBB 11 > BB 6 > B 0 > C 8 > D 3"), header = TRUE) > closeAllConnections() > x >

Re: [R] Random numbers for a group

Dear Maithili, Here are two suggestions: # data set x <- read.table(textConnection("Name no_of_instances AAA 12 AA17 A 0 BBB 11 BB 6 B 0 C 8 D 3"), header = TRUE) closeAllConnections() x # option 1 do.call(c,with(x, tapply(no_of_instances, Name, runif))) # option

[R] Random numbers for a group

Dear R helpers I have following table Name no_of_instances    AAA                             12                                AA                               17                                A                                  0