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...Statistician and Data Manager New Zealand Council for Educational Research Postal address: P.O. Box 3237, Wellington 6140 Street address: Level 10, Education House, 178-182 Willis Street, Te Aro, Wellington 6011 Phone: +64-4-802 1433 Fax: +64-4-384 7933 edith.hodgen at nzcer.org.nz Web site http://www.nzcer.org.nz

Hi, my doubt is very simple. I'm sure I've seen someone using something like this before, but unfortunatelly my searches in the archives were useless. Well, I have some objects called after a name that has a number attached to it, varying. Let's say I have: > ls poly1 poly2 poly3 poly4 poly5 poly6 ... I would like to access these objects using a for(), in which I could do

Hi all, I have (yet another) question about a function in R. What I would like to do is test for the presence of a certain value in a vector, and have the positions that this value is at returned to me. For example, let's say I have a vector: x <- c(1,1,2,2,3,3,4,4) Now I would like a function that would return positions 3 and 4 should I test for the value "2". Or 5 and 6