database - How to subset the rows of dataset from the values of another vector in R -

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i have data frame this

n <- c("abc;xml", "abc;derm;sip", "xol;exp", "ban;lopic", "lpll2", "lpll") fac <- sample(n, 6, replace = f) d <- data.frame(x = 1:6, fac = fac) d    x          fac 1 1      abc;xml 2 2    ban;lopic 3 3      xol;exp 4 4 abc;derm;sip 5 5         lpll 6 6        lpll2

and vector this:

vec=c("abc", "xml","sip", "exp", "lopic", "lpll")

i subset rows have similar match values in vectors.

i tried code:

nam="abc|xml|sip|exp|lopic|lpll" subset(d, regexpr(nam, d$fac) > 0)

but doesn't work correctly, because include , lpll2!

the problem regex find match, if not exact. work:

index <- sapply(strsplit(as.character(d$fac), split = ";"), function(x) any(x%in% vec)) d[index, ]   x          fac 1 1      xol;exp 2 2      abc;xml 3 3    ban;lopic 5 5         lpll 6 6 abc;derm;sip

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