Hello,
StellathePug wrote
>
> Hello everyone,
> I have tried several ways of doing this and searched the documentation and
> help lists and I have been unable to find an answer or even whether it is
> possible to do it. I am pasting together a formula and I need to insert
> double quotes around the strings. Here's an example:
>
> location <- c("AL", "AK", "MA", "PA")
> v=2
> test <- cbind(
> " <- cbind(df$DATE[df$LOCATION %in% c(",
> location[v],
> ")], df$WTD.AVG.PRICE[df$LOCATION %in% c(",
> location[v],
> ")])")
>
> test <- paste(test, collapse="")
> test
>
> Solution:
> [1] " <- cbind(df$DATE[df$LOCATION %in% c(AK)],
> df$WTD.AVG.PRICE[df$LOCATION %in% c(AK)])"
>
> This does not produce an error message but it is obviously wrong because I
> need double quotes around AK, i.e.,
> " <- cbind(df$DATE[df$LOCATION %in% c("AK")], df$WTD.AVG.PRICE[df$LOCATION
> %in% c("AK")])"
> And obviously, I gave R no indication whatsoever to use double quotes.
>
>
> If I use
> test <- paste(test, collapse=""")
> it does not work, which makes sense because the second double quote closes
> the first and the third is left an orphan.
>
> Anyone have any ideas?
>
> Thanks and have a great weekend!
> Rita
>
Use single quotes instead, they don't close the double quotes and, for this,
the result is the same.
Look at the end/beginning of the lines before/after location[v]
test2 <- cbind(
" <- cbind(df$DATE[df$LOCATION %in% c('",
location[v],
"')], df$WTD.AVG.PRICE[df$LOCATION %in% c('",
location[v],
"')])")
test2 <- paste(test2, collapse="")
test2
Hope this helps,
Rui Barradas
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