CODEWITHSUNDEEP
rstringlistvector
stochastiq
stochastiq

Reputation: 269

Delete vector of strings from list in R

I have a list, where each element is vector of strings, of variable length e.g.,

reqr:
chr[1:3] "sales" "communication" "leadership"
chr[1:2] "IT" "customer service"
chr[1:4] "team player" "CSS" "html" "english"

I have a vector, A = c("IT", "CSS", "english")

I want to remove strings from the list which appear in vector A, how do I go about this?

Upvotes: 2

Views: 147

Answers (2)

Ronak Shah
Ronak Shah

Reputation: 389295

You can use lapply along with match

lapply(reqr, function(x) x[is.na(match(x, A))])


#$a
#[1] "sales"         "communication" "leadership"   

#$b
#[1] "customer service"

#$c
#[1] "team player" "html"

Upvotes: 3

thelatemail
thelatemail

Reputation: 93938

Set operations are good...

lapply(reqr, setdiff, y=A)
#[[1]]
#[1] "sales"         "communication" "leadership"   
#
#[[2]]
#[1] "customer service"
#
#[[3]]
#[1] "team player" "html"

Upvotes: 4

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