annotate scripts/score_boxplot.py @ 1030:057c6b039f4e

Comment and rating scripts: robust against audioholders without id or audioelements; fixes issue where plots were not cleared before adding new content; showing legend optional; robust against non-UTF8 characters in legend names

import sys
import os
import csv
import matplotlib.pyplot as plt
import numpy as np

rating_folder = 'ratings/' # folder with rating csv files
show_individual = 'frank'

# get every csv file in folder
for file in os.listdir(rating_folder): # You have to put this in folder where rating csv files are.
    if file.endswith(".csv"):
        page_name = file[:-4] # file name (without extension) is page ID

        # get header
        with open(rating_folder+file, 'r') as readfile: # read this csv file
            filereader = csv.reader(readfile, delimiter=',')
            headerrow = filereader.next() # use headerrow as X-axis
            headerrow = headerrow[1:]

        # read ratings into matrix
        ratings = np.loadtxt(open(rating_folder+file,"rb"),
                            delimiter=",",
                            skiprows=1,
                            usecols=range(1,len(headerrow)+1)
                            )

        # draw boxplot
        plt.boxplot(ratings)

        # add rating of individual(s)
        with open(rating_folder+file, 'r') as readfile: # read this csv file
            filereader = csv.reader(readfile, delimiter=',')
            headerrow = filereader.next() # use headerrow as X-axis
            headerrow = headerrow[1:]
            markerlist = ["x", ".", "o", "*", "+", "v", ">", "<", "8", "s", "p"]
            increment = 0
            linehandles = []
            legendnames = []
            for row in filereader:
                subject_id = row[0][:-4]
                if subject_id in show_individual:
                    plothandle, = plt.plot(range(1,len(row)), # x-values
                             row[1:], # y-values: csv values except subject name
                             color='k',
                             marker=markerlist[increment%len(markerlist)],
                             markersize=10,
                             linestyle='None',
                             label=subject_id
                            )
                    increment += 1 # increase counter
                    linehandles.append(plothandle)
                    legendnames.append(subject_id)
                    plt.legend(linehandles, legendnames,
                           loc='upper right',
                           bbox_to_anchor=(1.1, 1), borderaxespad=0.)


        plt.xlabel('Fragment')
        plt.title('Box plot '+page_name)
        plt.xlim(0, len(headerrow)+1) # only show relevant region, leave space left & right)
        plt.xticks(range(1, len(headerrow)+1), headerrow) # show fragment names

        plt.ylabel('Rating')
        plt.ylim(0,1)

        #plt.show() # show plot
        #exit()

        plt.savefig(rating_folder+page_name+"-box.png")
        plt.close()