#!/usr/bin/python
import os,sys,os.path,glob,re,string,random
from pylab import *

# FIXME
# -- fix boxplot to use list-of-list representation (currently broken)

stream = sys.stdin
if len(sys.argv)>1: stream = open(sys.argv[1],"r")

data = []
for line in stream.xreadlines():
    f = line.split()
    if len(f)>0 and f[0]=="cost":
	cost = float(f[2])
        value = float(f[3])
        data.append((cost,value))

hists = {}
for cost,value in data:
    hists.setdefault(cost,[]).append(value)
keys = hists.keys()
keys.sort()
values = [array(hists[key]) for key in keys]
for value in values: value.shape = (-1,1)
try:
    boxplot(x=values,positions=keys)
except:
    sys.stderr.write("(list boxplot failed, trying array)\n")
    try:
        values = concatenate(values,1) # FIXME -- we shouldn't need this
        boxplot(x=values,positions=keys)
    except:
        sys.stderr.write("(array boxplot failed, trying simple boxplot)\n")
        boxplot(x=values)
show()