R help - Mar 2014 - How to create an ifelse statement where it matches a different data.frame variable

Hello,

Hopefully there is an answer for this, but I need an ifelse statement that
replaces and returns a value based on a different dataframe. For example:

CurrentDataFrame<-ifelse(CurrentDataFrame$Name=="NA",match(CurrentDataFrame$Code
with PastDataFrame$Code),replace(CurrentDataFrame$Name) with
(PastDataFrame$Name)


I hope that makes sense.

Thank you very much,

Johnson

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