Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
449 views
in Technique[技术] by (71.8m points)

r - Removing a group of words from a character vector

Let's say that I have a character vector of random names. I also have another character vector with a number of car makes and I want to remove any occurrence of a car incident in the original vector.

So given the vectors:

dat = c("Tonyhonda","DaveFord","Alextoyota")
car = c("Honda","Ford","Toyota","honda","ford","toyota")

I want to end up with something like below:

dat = c("Tony","Dave","Alex")

How can I remove part of a string in R?

See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Reply

0 votes
by (71.8m points)
gsub(x = dat, pattern = paste(car, collapse = "|"), replacement = "")
[1] "Tony" "Dave" "Alex"

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
OGeek|极客中国-欢迎来到极客的世界,一个免费开放的程序员编程交流平台!开放,进步,分享!让技术改变生活,让极客改变未来! Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...