[R] Test for list membership

From: Marcin Wlodarczak <mwlodarczak_at_uni-bielefeld.de>
Date: Mon, 30 May 2011 15:36:24 +0200


I need some help with this one: how do I check whether a vector is already present in a list of vectors.

I have seen %in% recommended in a similar case but that obviously does not work here.

c(1,2,3) %in% list(c(1,2,3), c(4,5,6))


[1] FALSE FALSE FALSE which makes sense since 1, 2 or 3 are not elements of that list. I don't really know how to move from there though.

Best wishes,

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https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. Received on Mon 30 May 2011 - 14:15:37 GMT

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