CODEWITHSUNDEEP
rstringgsub
David Ricardo Menacho Vadillo
David Ricardo Menacho Vadillo

Reputation: 117

Replace strings in a vector of text no packages

I have 2 vectors:

Param<-c("alpha","beta","theta")
Trend<-c("b","c","ac","bc")

I want to replace every item of Trend vector with the items in Param vector, being "a" the first element (alpha), b the second (beta), and so on...

The desired result would be:

Result=("beta","theta","alphatheta","betatheta")

If possible i dont want to use any package, if not any idea is welcome :)

Upvotes: 1

Views: 30

Answers (1)

akrun
akrun

Reputation: 887391

An option with str_replace from stringr which can take a named vector for replacement

library(stringr)
str_replace_all(Trend, set_names(Param, letters[1:3]))
#[1] "beta"       "theta"      "alphatheta" "betatheta"

Or if we dont' want to use any packages, use gsub in a loop

lts <- letters[1:3]
for(i in seq_along(lts)) Trend <- gsub(lts[i], Param[i], Trend)
Trend

Upvotes: 0

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