Re: Data handling in mathematica 2.2 and 3.0
- To: mathgroup at smc.vnet.net
- Subject: [mg5691] Re: [mg5662] Data handling in mathematica 2.2 and 3.0
- From: buttgereit at t-online.de (Peter Buttgereit)
- Date: Sat, 11 Jan 1997 14:28:58 -0500
- Sender: owner-wri-mathgroup at wolfram.com
sean ross wrote: > > How can I get mathematica to read in a text data file without > first having to massage the data in a text editor? Take your > typical multi-column data from an excel-type spreadsheet. If I > save it as text, the ReadList function assumes I want to > multiply all numbers together than appear on the same line. If > I save it as comma delimited, ReadList says it is a syntax > error. I have tried manipulating the RecordSeparator and > WordSeparator options in ReadList, but no success. > My current wordaround is to take the data file, read it into > excel and save it as comma delimited text, then import it into > word, and do a global replace on all return characters > converting them into commas, placing a { } around the list, > saving it as unformatted text. Then ReadList can read the data > and I can Partition it. I hope there is a more elegant > solution. > P.S. Has anybody been able to figure out how to read in > bitmap data like in the cat picture in the 3.0 "tour of > mathematica"? Any time I try to read in .bmp files, it just > generates garbage. Not quite as "mathematica reads in data in > any format" advertised. Hi Sean, in V. 2.2.1 you can read in your 1 2 3 3 4 5 5 54 32 ... files with ReadList["filename",Number,RecordLists->True]. "Should work" with V.3.0 ... For "tricks" see Tom Wickham-Jones "Mathematica Graphics" (New York: Springer, 1994) pp. 54. He deals with importing bitmaps, too. Greetings, Peter