Re: Removing list elements in x by list y
- To: mathgroup at smc.vnet.net
- Subject: [mg131159] Re: Removing list elements in x by list y
- From: Tomas Garza <tgarza10 at msn.com>
- Date: Fri, 14 Jun 2013 05:05:36 -0400 (EDT)
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- References: <20130613063635.3F7206A2A@smc.vnet.net>
In[1]:=Select[x, !MemberQ[y, #]&] Out[1]= {v,w,w} -Tomas > From: weh at snafu.de > Subject: Removing list elements in x by list y > To: mathgroup at smc.vnet.net > Date: Thu, 13 Jun 2013 02:36:35 -0400 > > 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