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I am learning R and have a tutorial that wants me to remove the percent sign. The code they want me to use is:

 chocolateData$Cocoa_Percent <- sapply(chocolateData$Cocoa_Percent, function(x) gsub("%", "", x))

My question pertains to what I may be typing wrong, or if there is a different way to do this with R?

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  • $\begingroup$ your code is correct and works for me. can you give a simple example that is not working for you? > cd <- NULL > cd$c <- c('test1%', 'test2%') > cd <- as.data.frame(cd) > cd$c [1] test1% test2% > cd$c <- sapply(cd$c, function(x) gsub("%","",x)) > cd$c [1] "test1" "test2" $\endgroup$ – user3631804 Nov 23 '18 at 14:58
  • $\begingroup$ If you just want to remove the percent sign for a single column use gsub("%", "", chocolateData$Cocoa_Percent) $\endgroup$ – rcs Nov 23 '18 at 15:19
  • $\begingroup$ tried it, not working on my system. $\endgroup$ – Chris Kehl Nov 23 '18 at 15:57
  • $\begingroup$ chocolateData$Cocoa.Percent = as.numeric(gsub("[\\%,]", "", chocolateData$Cocoa.Percent)) $\endgroup$ – Chris Kehl Nov 23 '18 at 16:14
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The following code worked, thanks for the assistance.

chocolateData$Cocoa.Percent = as.numeric(gsub("[\\%,]", "", chocolateData$Cocoa.Percent))

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