Octave Reading Mat File

If you do not specify filename the load function searches for a file named matlab mat.

Octave reading mat file. You may have a mat file that you want to read into scipy. See the documentation of strread for details. Octave has matlab compatible save and load functions. The save and load commands allow data to be written to and read from disk files in various formats.

The function behaves like strread except it works by parsing a file instead of a string. To open an m file you can use file open or type open filename. The default format of files written by the save command can be controlled using the functions save default options and save precision. Or you want to pass some variables from scipy numpy into matlab.

As an example the following code creates a 3 by 3 matrix and saves it to the file myfile mat. The data in the mat file is stored with the same name as the variable originally had when it was saved. Octave s default so called mat file format is not a binary mat file at all it is in fact a text file format that octave developed for itself. Oh and to display the contents of a variable in matlab octave you don t have to use disp.

Read data from a text file. Start octave octave at the command line for me. Although matlab is intended primarily for. You can always type help in front of a command to get a help text in the octave console or have a look at the octave documentation.

If filename has no extension that is no text after a period load looks for a file named filename mat if filename has an extension other than mat the load function treats. Please notice that you have to juggle a bit around with your data depending on the format. The first is the actual maximum and the second is the first index of the maximum value. Matlab an abbreviation of matrix laboratory is a proprietary multi paradigm programming language and numerical computing environment developed by mathworks matlab allows matrix manipulations plotting of functions and data implementation of algorithms creation of user interfaces and interfacing with programs written in other languages.

To save us using a matlab license let s start in octave. 14 1 3 simple file i o. This is explained in the octave documentation. The min function can do the same thing.

The file filename is read and parsed according to format. To get the name of this and all other environment variables type who. Default this proprietary text format is not and never has been compatible with any of the publicly documented mat binary file formats. Assuming i ve understood this is actually very easy to do.

For instructions on how to open a data file see basic reading and writing data from a file. Save the data in octave s text data format. If you run help max you ll see that it can pass two outputs.