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 -- ==-==-==-==-==-==-==-==-==-==-==-==-==-==-==-==-==-==-==-==-==-== Peter Breitfeld, Bad Saulgau, Germany -- http://www.pBreitfeld.de