On Jan 2, 2013, at 9:00 AM, eliza botto wrote:
Dear useRs,
i have a data frame with 16 lists in it. each list has variable
number of lines. i want to create a loop which will start deleting
every 32nd line in each list, till the end of each list. more
precisely if a list has 200 rows i want to delete row number 32, 64,
96 and so on...for that i created the followng loop.
e<-lapply(seq(1),function(i) rbind(r[[i]][1:31,],(r[[i]]
[32:nrow(r[[i]]),][-seq(i,nrow(r[[i]]),32),])))
but this loop executes the desired operation on the list at the top
and doesnt do anything to the remaining 16 lists.
any help?thanks in advance
eliza
[[alternative HTML version deleted]]
Perhaps something like this untested code:
smaller.r <- lapply(r, function(x) x[ ! ( 1:200 %% 32 == 0) ] ) #
logical indexing
You _should_ have constructed a small example and posted the results
of dput on that list.
--
David Winsemius, MD
Alameda, CA, USA
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