RosettaCodeData/Task/Text-processing-1/Python/text-processing-1.py

57 lines
1.7 KiB
Python

import fileinput
import sys
nodata = 0; # Current run of consecutive flags<0 in lines of file
nodata_max=-1; # Max consecutive flags<0 in lines of file
nodata_maxline=[]; # ... and line number(s) where it occurs
tot_file = 0 # Sum of file data
num_file = 0 # Number of file data items with flag>0
infiles = sys.argv[1:]
for line in fileinput.input():
tot_line=0; # sum of line data
num_line=0; # number of line data items with flag>0
# extract field info
field = line.split()
date = field[0]
data = [float(f) for f in field[1::2]]
flags = [int(f) for f in field[2::2]]
for datum, flag in zip(data, flags):
if flag<1:
nodata += 1
else:
# check run of data-absent fields
if nodata_max==nodata and nodata>0:
nodata_maxline.append(date)
if nodata_max<nodata and nodata>0:
nodata_max=nodata
nodata_maxline=[date]
# re-initialise run of nodata counter
nodata=0;
# gather values for averaging
tot_line += datum
num_line += 1
# totals for the file so far
tot_file += tot_line
num_file += num_line
print "Line: %11s Reject: %2i Accept: %2i Line_tot: %10.3f Line_avg: %10.3f" % (
date,
len(data) -num_line,
num_line, tot_line,
tot_line/num_line if (num_line>0) else 0)
print ""
print "File(s) = %s" % (", ".join(infiles),)
print "Total = %10.3f" % (tot_file,)
print "Readings = %6i" % (num_file,)
print "Average = %10.3f" % (tot_file / num_file,)
print "\nMaximum run(s) of %i consecutive false readings ends at line starting with date(s): %s" % (
nodata_max, ", ".join(nodata_maxline))