csv - How to replace a string with another string in a column in R? -

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i have csv file like

data.csv

id,name,city 23,radu,los angeles 34,tree,chicago rtet,great,miami rtet,francis,paris

where 

  record <- read.csv("data.csv",header=true);   identity <- record$id

i used

  gsub("rtet","67",identity)

but not work.

how replace "rtet" in csv file "67" in r? new r.any appreciated.

record$id<-gsub("rtet","67",record$id)

works me...


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