from sys import stdout f = open("res.csv", "r") matrix = list() for line in f.readlines(): matrix.append([float(x) for x in line.split()[1:]]) col = len(matrix[0]) row = len(matrix) inf = 1e9 for j in xrange(col): best = inf for i in xrange(row): if matrix[i][j] < best: best = matrix[i][j] for i in xrange(row): if matrix[i][j] > inf: r = '-' else: r = str(matrix[i][j] / best) stdout.write('{0} '.format(r)) stdout.write('\n')