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Re: How to read a data file in text format?_from a new learner

• To: mathgroup at smc.vnet.net
• Subject: [mg62379] Re: [mg62334] How to read a data file in text format?_from a new learner
• From: ggroup at sarj.ca
• Date: Tue, 22 Nov 2005 04:42:30 -0500 (EST)
• References: <200511210854.DAA22074@smc.vnet.net>
• Reply-to: ggroup at sarj.ca
• Sender: owner-wri-mathgroup at wolfram.com

On Monday, November 21, 2005 at 03:54 GMT -0500, Deepthinker wrote:

<snip>
> 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:
<snip>
> How to import these data in to mathematica 5.0 and plot the figure?

It should be fairly simple in this case:

data=Import["<path>\\data.txt","CSV"];
ListPlot[Rest[data]];

There are many options to ListPlot that will allow you to format the
resulting plot to a format that you desire.  For example:

ListPlot[Rest[data],
  Frame -> True,
  Axes -> False,
  PlotJoined -> True,
  FrameLabel -> {"Wavelength", "Detector Reading"},
  PlotLabel -> data[[1, 1]]]

• References:
  • How to read a data file in text format?_from a new learner
    • From: "deepthinker" <yanshanguke@163.com>