Hello The R code mydata$newvar[oldvar = "topic1"] <- "parenttopic"
is intended to recode the category 'topic 1' of the old varaible 'oldvar' a new category label 'parenttopic' by defining the new variable 'newvar'. Is there a convenient way to edit this code to allow me to recode a list of categories 'topic 1', 'topic 9' and 'topic 14', say, of the the old variable 'oldvar' as 'parenttopic' by means of the new variable 'newvar', while also mapping system missing values to system missing values? Thanks in advance Best wishes Margaret
The University of Edinburgh is a charitable body, registered in Scotland, with registration number SC005336.
______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
