MATLAB: Can Matlab get information from a new filetype but one thats readable in notepad

filefiletypeloadtextreadtextscan

The filetype is a VAMAS or *.vms file in this case. You can open the file in Notepad, and read the information easily enough there. However saying 'load' or 'textread' in Matlab doesn't seem to work. Is there a way around this?

Best Answer

I would expect fopen/textscan to work.

You could also try importing it directly with the import tool (right click on the file in the current folder and select "Import Data").

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[GIS] ListFields (arcpy) not reading from layer

The documentation here says that ListFields takes a String parameter. So I would try with the datasource path, rather than a layer object itself. I.e. something like:

if layer.supports("DATASOURCE"):
    fieldList = arcpy.ListFields(layer.dataSource)

MATLAB: How to load and read these files in matlab

If you are unsure how to import a certain file ... you can use the import wizard (right click on your file in MATLAB and choose "import data"). Then adjust the settings how you want to import the data and finally on the right side under "import selection" choose "generate script".

For the first file (retweet.txt) - this is a code that should work (which basically has just been copied from the "generate script" result):

 %%Initialize variables.
 filename = 'retweet.txt';
 delimiter = ',';
 %%Read columns of data as text:
 % For more information, see the TEXTSCAN documentation.
 formatSpec = '%s%[^\n\r]';
 %%Open the text file.
 fileID = fopen(filename,'r');
 %%Read columns of data according to the format.
 dataArray = textscan(fileID, formatSpec, 'Delimiter', delimiter,  'ReturnOnError', false);
 %%Close the text file.
 fclose(fileID);

For the second file - change the following:

 delimiter = '\t';
 formatSpec = '%s%s%s%[^\n\r]';

You just have to convert the resulting cell arrays into the type of your choosing. Also here - the "generate script" button creates these lines for you (and will follow the lines I pasted in the beginning).

Best Answer

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[GIS] ListFields (arcpy) not reading from layer

MATLAB: How to load and read these files in matlab

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