diff Perceptual Evaluation/webaudioevaluationtool/scripts/evaluation_stats.py @ 0:55c282f01a30 tip

Adding files to Repo. Initial Commit

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Perceptual Evaluation/webaudioevaluationtool/scripts/evaluation_stats.py	Fri Oct 16 18:04:00 2015 +0100
@@ -0,0 +1,170 @@
+#!/usr/bin/python
+# -*- coding: utf-8 -*-
+
+import xml.etree.ElementTree as ET
+import os       # for getting files from directory
+import operator # for sorting data with multiple keys
+
+# XML results files location (modify as needed):
+folder_name = "../saves"    # Looks in 'saves/' folder from 'scripts/' folder
+
+# Turn number of seconds (int) to '[minutes] min [seconds] s' (string)
+def seconds2timestr(time_in_seconds):
+    time_in_minutes = int(time_in_seconds/60)
+    remaining_seconds = int(time_in_seconds%60)
+    return str(time_in_minutes) + " min " + str(remaining_seconds) + " s"
+
+# stats initialisation
+number_of_XML_files  = 0
+number_of_pages      = 0
+number_of_fragments  = 0
+total_empty_comments = 0
+time_per_page_accum  = 0
+
+# arrays initialisation
+page_names       = []
+page_count       = []
+duration_page    = []      # duration of experiment in function of page content
+duration_order   = []      # duration of experiment in function of page number
+fragments_per_page = []    # number of fragments for corresponding page
+
+# get every XML file in folder
+files_list = os.listdir(folder_name)
+for file in files_list: # iterate over all files in files_list
+    if file.endswith(".xml"): # check if XML file
+        number_of_XML_files += 1
+        tree = ET.parse(folder_name + '/' + file)
+        root = tree.getroot()
+        
+        print file # print file name (subject name)
+        
+        # reset for new subject
+        total_duration = 0
+        page_number = 0
+        
+        # get list of all page names
+        for audioholder in root.findall("./audioholder"):   # iterate over pages
+            page_name = audioholder.get('id')               # get page name
+            
+            if page_name is None: # ignore 'empty' audio_holders
+                print "WARNING: " + file + " contains empty audio holder. (evaluation_stats.py)"
+                break # move on to next
+            
+            number_of_comments = 0 # for this page
+            number_of_missing_comments = 0 # for this page
+            
+            # number of audio elements
+            audioelements = audioholder.findall("./audioelement") # get audioelements
+            number_of_fragments += len(audioelements) # add length of this list to total
+            
+            # number of comments (interesting if comments not mandatory)
+            for audioelement in audioelements:
+                response = audioelement.find("./comment/response")
+                if response.text is not None and len(response.text) > 1: 
+                    number_of_comments += 1
+                else: 
+                    number_of_missing_comments += 1
+                    
+            total_empty_comments += number_of_missing_comments
+            
+            # 'testTime' keeps total duration: subtract time so far for duration of this audioholder
+            duration = float(audioholder.find("./metric/metricresult[@id='testTime']").text) - total_duration
+            
+            # total duration of test
+            total_duration += duration
+            
+            # print audioholder id and duration
+            print "    " + page_name + ": " + seconds2timestr(duration) + ", "\
+                  + str(number_of_comments)+"/"\
+                  +str(number_of_comments+number_of_missing_comments)+" comments"
+            
+            # keep track of duration in function of page index
+            if len(duration_order)>page_number:
+                duration_order[page_number].append(duration)
+            else:
+                duration_order.append([duration])
+                
+            # keep list of audioholder ids and count how many times each audioholder id
+            # was tested, how long it took, and how many fragments there were (if number of 
+            # fragments is different, store as different audioholder id)
+            if page_name in page_names: 
+                page_index = page_names.index(page_name) # get index
+                # check if number of audioelements the same
+                if len(audioelements) == fragments_per_page[page_index]: 
+                    page_count[page_index] += 1
+                    duration_page[page_index].append(duration)
+                else: # make new entry
+                    alt_page_name = page_name+"("+str(len(audioelements))+")"
+                    if alt_page_name in page_names: # if already there
+                        alt_page_index = page_names.index(alt_page_name) # get index
+                        page_count[alt_page_index] += 1
+                        duration_page[alt_page_index].append(duration)
+                    else: 
+                        page_names.append(alt_page_name)
+                        page_count.append(1)
+                        duration_page.append([duration])
+                        fragments_per_page.append(len(audioelements))
+            else: 
+                page_names.append(page_name)
+                page_count.append(1)
+                duration_page.append([duration])
+                fragments_per_page.append(len(audioelements))
+                
+            # bookkeeping
+            page_number += 1 # increase page count for this specific test
+            number_of_pages += 1 # increase total number of pages
+            time_per_page_accum += duration # total duration (for average time spent per page)
+
+        # print total duration of this test
+        print "    TOTAL: " + seconds2timestr(total_duration)
+
+
+# PRINT EVERYTHING
+
+print "Number of XML files: " + str(number_of_XML_files)
+print "Number of pages: " + str(number_of_pages)
+print "Number of fragments: " + str(number_of_fragments)
+print "Number of empty comments: " + str(total_empty_comments)
+print "Average time per page: " + seconds2timestr(time_per_page_accum/number_of_pages)
+page_count_strings = list(str(x) for x in page_count)
+count_list = page_names + page_count_strings
+count_list[::2] = page_names
+count_list[1::2] = page_count_strings
+print "Pages tested: " + str(count_list)
+
+# Average duration for first, second, ... page
+for page_number in range(len(duration_order)): 
+    print "Average duration page " + str(page_number+1) + ": " +\
+        seconds2timestr(sum(duration_order[page_number])/len(duration_order[page_number])) +\
+            " ("+str(len(duration_order[page_number]))+" subjects)"
+
+
+# Sort pages by number of audioelements, then by duration
+
+# average duration and number of subjects per page
+average_duration_page = []
+number_of_subjects_page = []
+for line in duration_page:
+    number_of_subjects_page.append(len(line))
+    average_duration_page.append(sum(line)/len(line))
+
+# combine and sort in function of number of audioelements and duration
+combined_list = [page_names, average_duration_page, fragments_per_page, number_of_subjects_page]
+combined_list = sorted(zip(*combined_list), key=operator.itemgetter(1, 2)) # sort
+
+# Show average duration for all songs
+for page_index in range(len(page_names)):
+    print "Average duration audioholder " + combined_list[page_index][0] + ": " \
+          + seconds2timestr(combined_list[page_index][1]) \
+          + " (" + str(combined_list[page_index][3]) + " subjects, " \
+          + str(combined_list[page_index][2]) + " fragments)"
+
+
+#TODO
+# time per page in function of number of fragments (plot)
+# time per participant in function of number of pages
+# plot total time for each participant
+# plot total time
+# show 'count' per page (in order)
+
+# clear up page_index <> page_count <> page_number confusion