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MathGroup Archive 2001

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Re: Map

  • To: mathgroup at smc.vnet.net
  • Subject: [mg29691] Re: [mg29684] Map
  • From: Andrzej Kozlowski <andrzej at tuins.ac.jp>
  • Date: Wed, 4 Jul 2001 03:08:18 -0400 (EDT)
  • Sender: owner-wri-mathgroup at wolfram.com

You need to use level specification:

In[50]:=
a={{1,5,10},{25,0,2000},{55,5,2001}};

In[51]:=
Map[If[# < 10, (StringJoin[ToString[0], ToString[#]]), # ] & ,a,{2}]
Out[51]=
{{01,05,10},{25,00,2000},{55,05,2001}}

on 7/3/01 5:40 PM, bbongiorno at attglobal.net at bbongiorno at attglobal.net
wrote:

> I have not been successful in converting the following If Do routine,
> to a routine using the If Map function.
> 
> Matrix
> a={{1,5,10},{25,0,2000},{55,5,2001}}
> 
> If Do Routine that works
> y=0;
> Do[y=y+1;x=0;
> Do[x=x+1;
> a[[x,y]]=
> If[a[[x,y]]<10,(StringJoin[ToString[0],ToString[a[[x,y]]]]),a[[x,y]]],
> {Length[a]}],
> {Length[Transpose[a]]}]
> 
> If Map Routine that does not work
> 
> If[# < 10, (StringJoin[ToString[0], ToString[#]]), # ] & /@ a
> 
> Please help.
> Thanks,
> 
> Benedetto Bongiorno
> 
> 
> 

-- 
Andrzej Kozlowski
Toyama International University
JAPAN

http://platon.c.u-tokyo.ac.jp/andrzej/
http://sigma.tuins.ac.jp/~andrzej/



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