Hi I have a vector of 100 elementos like this ones:
a <- c("SMART TV LCD FHD 70\" LC70LE660", "LED FULL HD 58'' LE58D3140")
I want to put just the (70\") and (58'') in a vector b.
This is my try, but is not working:
b <- grepl('^[0-9]{2}""$',a)
Any hint is welcome, thanks.
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