Re: [R] replace values in one df by values from key pairs in another df

This is the wrong part of my code. > >> idName=users[users$id %in% ext] > idname > 1: U03AEKWTL agreenmamba > 2: U032FHV3S poisonivy > 3: U03AEKYL4 vairis > Best is to use: idNames <- users[pmatch(ext, users$id, duplicates.ok = T)]. This leave me with an ordered and dupl

[R] replace values in one df by values from key pairs in another df

I have been searching for a while now, but can't put all pieces of the puzzle together. Goal : I want to replace all these kinds of patterns <@U032FHV3S> by this <@agreenmamba>. In a more generic way, it is replacing 'id' by user 'name'. I have two df: The first, 'history', is some message histor