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2013 Nov 06
1
Multiple String word replacements: Performance Issue
...nts<-list(string=x, pattern=rep_words_part3) t3<-do.call(str_extract_all,arguments) arguments<-list(string=x, pattern=rep_words_part4) t4<-do.call(str_extract_all,arguments) count=length(t1[[1]])+length(t2[[1]])+length(t3[[1]])+length(t4[[1]]) signal_words=c(t1[[1]],t2[[1]],t3[[1]],t4[[1]]) # Replacements arguments<-list(pattern=rep_wordsA,replacement="[ticker]",x=y, ignore.case=TRUE) y<-do.call(gsub, arguments) arguments<-list(pattern=rep_wordB_part1,replacement="[ticker] &quot...