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RE: How do I write tabular output?

• To: mathgroup at smc.vnet.net
• Subject: [mg74209] RE: [mg74133] How do I write tabular output?
• From: "David Annetts" <davidannetts at aapt.net.au>
• Date: Wed, 14 Mar 2007 03:53:16 -0500 (EST)
• References: <200703130302.WAA10970@smc.vnet.net>

Hi Henning

> I have a situation that I guess is rather usual:
> 
> I have a list looking like this;
> 
> {{C,1.23,2.34,0},{C,3.4,1.75,0.12},...}
> 
> and I want to write an output file looking like this:
> 
> C    1.23000     2.34000    0.00000
> C    3.40000     1.75000    0.12000
> etc.
> 
> All tips and hints are very welcome!

Should be straightforward shouldn't it.  After all, if we can do this easily
in Fortran, why not Mathematica?

Anyway, given

	data = {"C", 10 * Random[], 5 * Random[], Random[]} & /@ Range[10];

We can define the helper function

	tstr[data_List] := Module[
	      {stmp},
      	stmp = ToString[PaddedForm[data[[#]], {9, 5}]] & /@
Range@Length@data
	      ];

Then,

	tstr[data[[#]]] & /@ Range@Length@data;
	StringJoin[#] & /@ %
	Export["Henning.txt", %, "TABLE"]

Should get you close to where you need to be.  Depending on the magnitude of
your data, you might also want to set ExponentFunction->(Null)& in
PaddedForm[].

Regards,

Dave.

• References:
  • How do I write tabular output?
    • From: "Henning Heiberg-Andersen" <henning.heibergandersen@gmail.com>