Re: How to read a data file in text format?_from a new learner
- To: mathgroup at smc.vnet.net
- Subject: [mg62354] Re: How to read a data file in text format?_from a new learner
- From: Peter Breitfeld <phbrf at t-online.de>
- Date: Tue, 22 Nov 2005 04:41:56 -0500 (EST)
- References: <dls56u$nue$1@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
deepthinker schrieb:
> I want to import a data file that produced by spectrometer into
> mathemathica and fit the data. The file is in text format ("data.txt").
> The data in the file is characters: first line:some descriptions.
> second line: 200, 45.5. third line: 201,44.3. and so on. If you open
> the file "data.txt", you will see:
> transmission ratio by UV-3150
> 200, 45.5
> 201,44.3
> 202,44.6
> 203,46.7
> ...
> 1,000,75.5
> 1,000,76.3
>
> How to import these data in to mathematica 5.0 and plot the figure?
> Thank you very much
>
I don't know if this is the best approach, but you can try the
following:
urlist=ReadList["myfile", Word, WordSeparators->{"\n",â??\t"," â??,â??,â??}]
Now remove the irrelevant entries in front of the list:
list=Take[urlist, {5,Length[urlist]}]
If you need pairs of theses values, use Partition
Partition[list,2]
Out={{200, 45.5},{201, 44.3}, . . ,{1000,76.3}}
Gruss Peter
--
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Peter Breitfeld, Bad Saulgau, Germany -- http://www.pBreitfeld.de