Re: Removing list elements in x by list y
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- Subject: [mg131144] Re: Removing list elements in x by list y
- From: Ulrich Arndt <ulrich.arndt at data2knowledge.de>
- Date: Fri, 14 Jun 2013 05:00:35 -0400 (EDT)
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There will be many other ways to do that but this works for the example Delete[x, Flatten[Position[x, #] & /@ y, 1]] But what would you expect as a result in case of y = {u,w}? Am 13.06.2013 um 08:36 schrieb Dr. Wolfgang Hintze: > I have simple question. > > Given two lists > > x = {u, v, w, w, d}; > y = {u, d}; > > I wish to "subtract" y from x, i.e. remove exactly the elements in x > which belong to y giving > > x "-" y = {v,w,w} > > Complement[] gives instead {v,w}. > Note that we are talking about lists rather than sets. > > I'm sure there is a simple standard command, but I can't find it. > Can you? > > Regards, > Wolfgang >
- References:
- Removing list elements in x by list y
- From: "Dr. Wolfgang Hintze" <weh@snafu.de>
- Removing list elements in x by list y