Re: How to remove the Null character in a Table?

*To*: mathgroup at smc.vnet.net*Subject*: [mg124347] Re: How to remove the Null character in a Table?*From*: Tomas Garza <tgarza10 at msn.com>*Date*: Tue, 17 Jan 2012 03:29:22 -0500 (EST)*Delivered-to*: l-mathgroup@mail-archive0.wolfram.com*References*: <201201162211.RAA15417@smc.vnet.net>

Sounds a little farfetched, but this is a nice example to introduce the use of Sow and Reap: In[1]:= Reap[Sow[#, # < 3] & /@ Table[i, {i, 5}], True][[2, 1]] Out[1]= {1, 2} Something simpler might be In[3]:= Cases[Table[If[i < 3, i,], {i, 5}], _?NumberQ] Out[3]= {1, 2} or even simpler In[7]:= Select[Table[If[i < 3, i,], {i, 5}], NumberQ[#] &] Out[7]= {1, 2} -Tomas > Date: Mon, 16 Jan 2012 17:11:34 -0500 > From: aoirex at gmail.com > Subject: How to remove the Null character in a Table? > To: mathgroup at smc.vnet.net > > For example, > > Table[If[i < 3, i,], {i, 5}] > will give > {1, 2, Null, Null, Null} > > But I want the result to be {1,2}. > > Any trick for this? >

**References**:**How to remove the Null character in a Table?***From:*Rex <aoirex@gmail.com>