mat2csv.py

import scipy.io
import argparse
import numpy
import sys
import os

import os.path

if __name__ == "__main__" :

    parser = argparse.ArgumentParser()
    
    parser.add_argument("-m","--mat-filename", help="MATLAB matrix filename", \
            type=str, required=True, dest="matfilename")
    
    if len(sys.argv) == 1:
        parser.print_help()
        exit(1)

    args = parser.parse_args()

    filename = args.matfilename
    
    errmsg = []
    
    if not (os.path.isfile(filename)):
        print("File " + filename + " does not exist")
        exit(1)
    
    m = scipy.io.loadmat(filename)

    howmany = 0
    for name in m.keys():
        if (isinstance( m[name],(numpy.ndarray))):
            howmany += 1
    
    print(howmany)

    for name in m.keys():
        if (isinstance( m[name],(numpy.ndarray))):
            if (len(m[name].shape) == 2):
                print(name)
                print(m[name].shape[0], " , ", m[name].shape[1])

                for i in range(m[name].shape[0]):
                    for j in range(m[name].shape[1]-1):
                        sys.stdout.write( str(m[name][i, j]) + " , ")
                    sys.stdout.write( str(m[name][i, -1]) + "\n")