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intersect
4 messages · Yuan Jian, Jorge Ivan Velez, Sean Anderson +1 more
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<jayuan2008 at yahoo.com> wrote:
how can I test every element in a vector whether appears in another vector?
such as
a<-c("aa", "bb", "ff", "cc")
b <-c("oo","jj","bb","cc")
a %in% b [1] FALSE TRUE FALSE TRUE
On May 11, 2010, at 10:31 PM, Yuan Jian wrote:
Hi there,
how can I test every element in a vector whether appears in another
vector?
such as
a<-c("aa", "bb", "ff", "cc")
b <-c("oo","jj","bb","cc")
somefunction(a,b) gives [False, True, False, True]
The other answers probably gave you what you wanted, but you should not leave this exchange thinking that True == TRUE or that False =FALSE in R.
David Winsemius, MD West Hartford, CT