csvmean

csvmean.py

#!/usr/bin/env python
import sys
import csv
import os
from optparse import OptionParser
import numpy as np

if __name__ == '__main__':
    parser = OptionParser()
    parser.add_option("-d", "--delimiter", default = ",", dest = "delimiter")
    (opt, args) = parser.parse_args()
    csv.writer(sys.stdout, lineterminator = os.linesep).writerows([map(np.mean, np.loadtxt(f, delimiter = opt.delimiter, ndmin = 2, unpack = True)) for f in args])