changeset 263:ef2d63555702

Scripts: evaluation statistics: show average duration per song in order of number of fragments and average total duration; count empty comments; fragments per song; distinguish between same audioholder ids with different number of audioelements.

--- a/scripts/evaluation_stats.py	Tue Jul 14 20:09:25 2015 +0100
+++ b/scripts/evaluation_stats.py	Wed Jul 15 15:52:56 2015 +0100
@@ -2,7 +2,8 @@
 # -*- coding: utf-8 -*-
 
 import xml.etree.ElementTree as ET
-import os
+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
@@ -14,17 +15,18 @@
     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
-time_per_page_accum = 0
+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
-duration_subject = []
-duration_order = []
+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)
@@ -48,13 +50,22 @@
                 print "WARNING: " + file + " contains empty audio holder. (evaluation_stats.py)"
                 break # move on to next
             
-            # keep list of audioholder ids and count how many times each audioholder id was tested
-            if page_name in page_names:
-                page_index = page_names.index(page_name) # get index
-                page_count[page_index] += 1
-            else:
-                page_names.append(page_name)
-                page_count.append(1)
+            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
@@ -63,18 +74,43 @@
             total_duration += duration
             
             # print audioholder id and duration
-            print "    " + page_name + ": " + seconds2timestr(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])
-
-            # number of audio elements
-            audioelements = audioholder.findall("./audioelement") # get audioelements
-            number_of_fragments += len(audioelements) # add length of this list to total
-            
+                
+            # 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)
@@ -88,6 +124,7 @@
 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
@@ -96,12 +133,33 @@
 print "Pages tested: " + str(count_list)
 
 # Average duration for first, second, ... page
-for page_number in range(len(duration_order)): #TODO make maximum page number automatic
+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