Hi Luigi,
Ah, now I see:
df$VAL<-gsub("Value is","",df$VAL,ignore.case=TRUE)
df
VAR VAL
1 1 blue
2 2 red
3 3 empty
Jim
On Mon, Aug 9, 2021 at 6:43 PM Luigi Marongiu <marongiu.lu...@gmail.com> wrote:
>
> Hello,
> I have a dataframe where I would like to change the string of certain
> rows, essentially I am looking to remove some useless text from the
> variables.
> I tried with:
> ```
> > df = data.frame(VAR = 1:3, VAL = c("value is blue", "Value is red",
> > "empty"))
> > df[df$VAL] = gsub("value is ", "", df$VAL, ignore.case = TRUE, perl = FALSE)
> > df
> VAR VAL value is blue Value is red empty
> 1 1 value is blue blue blue blue
> 2 2 Value is red red red red
> 3 3 empty empty empty empty
> ```
> which is of course wrong because I was expecting
> ```
> VAR VAL
> 1 1 blue
> 2 2 red
> 3 3 empty
> ```
> What is the correct syntax in these cases?
> Thank you
>
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