Uses the kudos/hits ratio, number of chapters, and statistical evaluation to score and sort AO3 works.
// ==UserScript==
// @name AO3: Quality score (Adjusted Kudos/Hits ratio)
// @description Uses the kudos/hits ratio, number of chapters, and statistical evaluation to score and sort AO3 works.
// @namespace https://greasyfork.org/scripts/3144-ao3-kudos-hits-ratio
// @author Min (Small edits made by TheShinySnivy)
// @version 1.4
// @history 1.4 - always show hits on stats page, require jquery (for firefox)
// @history 1.3 - works for statistics, option to show hitcount
// @history 1.2 - makes use of new stats classes
// @grant none
// @require https://ajax.googleapis.com/ajax/libs/jquery/1.9.0/jquery.min.js
// @include http://archiveofourown.org/*
// @include https://archiveofourown.org/*
// ==/UserScript==
// ~~ SETTINGS ~~ //
// count kudos/hits automatically: true/false
var always_count = true;
// sort works on this page by kudos/hits ratio in descending order automatically: true/false
var always_sort = false;
// hide hitcount: true/false
var hide_hitcount = true;
// colour background depending on percentage: true/false
var colourbg = true;
// lvl1 & lvl2 - percentage levels separating red, yellow and green background; ratio_red, ratio_yellow, ratio_green - background colours
var ratio_red = '#ffdede';
var lvl1 = 4;
var ratio_yellow = '#fdf2a3';
var lvl2 = 7;
var ratio_green = '#c4eac3';
// ~~ END OF SETTINGS ~~ //
// STUFF HAPPENS BELOW //
(function($) {
// check user settings
if (typeof(Storage) !== 'undefined') {
var always_count_set = localStorage.getItem('alwayscountlocal');
var always_sort_set = localStorage.getItem('alwayssortlocal');
var hide_hitcount_set = localStorage.getItem('hidehitcountlocal');
if (always_count_set == 'no') {
always_count = false;
}
if (always_sort_set == 'yes') {
always_sort = true;
}
if (hide_hitcount_set == 'no') {
hide_hitcount = false;
}
}
// set defaults for countableness and sortableness
var countable = false;
var sortable = false;
var stats_page = false;
// check if it's a list of works or bookmarks, or header on work page, and attach the menu
checkCountable();
// if set to automatic
if (always_count) {
countRatio();
if (always_sort) {
sortByRatio();
}
}
// check if it's a list of works/bookmarks/statistics, or header on work page
function checkCountable() {
var found_stats = $('dl.stats');
if (found_stats.length) {
if (found_stats.closest('li').is('.work') || found_stats.closest('li').is('.bookmark')) {
countable = true;
sortable = true;
addRatioMenu();
}
else if (found_stats.parents('.statistics').length) {
countable = true;
sortable = true;
stats_page = true;
addRatioMenu();
}
else if (found_stats.parents('dl.work').length) {
countable = true;
addRatioMenu();
}
}
}
function countRatio() {
if (countable) {
$('dl.stats').each(function() {
var hits_value = $(this).find('dd.hits');
var kudos_value = $(this).find('dd.kudos');
var chapters_value = $(this).find('dd.chapters');
var split_string = chapters_value.text().split("/");
var chapters_string = split_string[0];
// if hits and kudos were found
if (kudos_value.length && hits_value.length && hits_value.text() !== '0') {
// get counts
var hits_count = parseInt(hits_value.text());
var kudos_count = parseInt(kudos_value.text());
var chapters_count = parseInt(chapters_string.toString());
console.log("Hits: " + hits_count + "Kudos: " + kudos_count + "Chapters:" + chapters_count);
var new_hits_count = hits_count / Math.sqrt(chapters_count);
console.log("New hits count: " + new_hits_count);
// count percentage
var percents = 100*kudos_count/new_hits_count;
if (kudos_count < 11) {
percents = 1;
}
var p_value = getPValue(new_hits_count, kudos_count, chapters_count);
if (p_value < 0.05) {
percents = 1;
}
// get percentage with one decimal point
var percents_print = percents.toFixed(1).replace('.',',');
// add ratio stats
var ratio_label = $('<dt class="kudoshits"></dt>').text('Score:');
var ratio_value = $('<dd class="kudoshits"></dd>').text(percents_print + '');
hits_value.after('\n', ratio_label, '\n', ratio_value);
if (colourbg) {
// colour background depending on percentage
if (percents >= lvl2) {
ratio_value.css('background-color', ratio_green);
}
else if (percents >= lvl1) {
ratio_value.css('background-color', ratio_yellow);
}
else {
ratio_value.css('background-color', ratio_red);
}
}
if (hide_hitcount && !stats_page) {
// hide hitcount label and value
$(this).find('.hits').css('display', 'none');
}
// add attribute to the blurb for sorting
$(this).closest('li').attr('kudospercent', percents);
}
else {
// add attribute to the blurb for sorting
$(this).closest('li').attr('kudospercent', 0);
}
});
}
}
var null_hyp = 0.04;
function getPValue(hits, kudos, chapters) {
var test_prop = kudos / hits;
var z_value = (test_prop - null_hyp) / Math.sqrt( (null_hyp * (1 - null_hyp)) / hits );
return normalcdf(0, -1 * z_value, 1);
}
function normalcdf(mean, upper_bound, standard_dev) {
var z = (standard_dev-mean)/Math.sqrt(2*upper_bound*upper_bound);
var t = 1/(1+0.3275911*Math.abs(z));
var a1 = 0.254829592;
var a2 = -0.284496736;
var a3 = 1.421413741;
var a4 = -1.453152027;
var a5 = 1.061405429;
var erf = 1-(((((a5*t + a4)*t) + a3)*t + a2)*t + a1)*t*Math.exp(-z*z);
var sign = 1;
if(z < 0)
{
sign = -1;
}
return (1/2)*(1+sign*erf);
}
function sortByRatio(ascending) {
if (sortable) {
var sortable_lists = $('dl.stats').closest('li').parent();
sortable_lists.each(function() {
var list_elements = $(this).children('li');
// sort by kudos/hits ratio in descending order
list_elements.sort(function(a, b) {
return parseFloat(b.getAttribute('kudospercent')) - parseFloat(a.getAttribute('kudospercent'));
});
if (ascending) {
$(list_elements.get().reverse()).detach().appendTo($(this));
}
else {
list_elements.detach().appendTo($(this));
}
});
}
}
// attach the menu
function addRatioMenu() {
// get the header menu
var header_menu = $('ul.primary.navigation.actions');
// create and insert menu button
var ratio_menu = $('<li class="dropdown"></li>').html('<a>Kudos/hits</a>');
header_menu.find('li.search').before(ratio_menu);
// create and append dropdown menu
var drop_menu = $('<ul class="menu dropdown-menu"></li>');
ratio_menu.append(drop_menu);
// create button - count
var button_count = $('<li></li>').html('<a>Count on this page</a>');
button_count.click(function() {countRatio();});
// create button - sort
var button_sort = $('<li></li>').html('<a>Sort on this page</a>');
button_sort.click(function() {sortByRatio();});
// create button - settings
var button_settings = $('<li></li>').html('<a style="padding: 0.5em 0.5em 0.25em; text-align: center; font-weight: bold;">— Settings (click to change): —</a>');
// create button - always count
var button_count_yes = $('<li class="count-yes"></li>').html('<a>Count automatically: YES</a>');
drop_menu.on('click', 'li.count-yes', function() {
localStorage.setItem('alwayscountlocal', 'no');
button_count_yes.replaceWith(button_count_no);
});
// create button - not always count
var button_count_no = $('<li class="count-no"></li>').html('<a>Count automatically: NO</a>');
drop_menu.on('click', 'li.count-no', function() {
localStorage.setItem('alwayscountlocal', 'yes');
button_count_no.replaceWith(button_count_yes);
});
// create button - always sort
var button_sort_yes = $('<li class="sort-yes"></li>').html('<a>Sort automatically: YES</a>');
drop_menu.on('click', 'li.sort-yes', function() {
localStorage.setItem('alwayssortlocal', 'no');
button_sort_yes.replaceWith(button_sort_no);
});
// create button - not always sort
var button_sort_no = $('<li class="sort-no"></li>').html('<a>Sort automatically: NO</a>');
drop_menu.on('click', 'li.sort-no', function() {
localStorage.setItem('alwayssortlocal', 'yes');
button_sort_no.replaceWith(button_sort_yes);
});
// create button - hide hitcount
var button_hide_yes = $('<li class="hide-yes"></li>').html('<a>Hide hitcount: YES</a>');
drop_menu.on('click', 'li.hide-yes', function() {
localStorage.setItem('hidehitcountlocal', 'no');
$('.stats .hits').css('display', '');
button_hide_yes.replaceWith(button_hide_no);
});
// create button - don't hide hitcount
var button_hide_no = $('<li class="hide-no"></li>').html('<a>Hide hitcount: NO</a>');
drop_menu.on('click', 'li.hide-no', function() {
localStorage.setItem('hidehitcountlocal', 'yes');
$('.stats .hits').css('display', 'none');
button_hide_no.replaceWith(button_hide_yes);
});
// append buttons to the dropdown menu
drop_menu.append(button_count);
if (sortable) {
drop_menu.append(button_sort);
}
if (typeof(Storage) !== 'undefined') {
drop_menu.append(button_settings);
if (always_count) {
drop_menu.append(button_count_yes);
}
else {
drop_menu.append(button_count_no);
}
if (always_sort) {
drop_menu.append(button_sort_yes);
}
else {
drop_menu.append(button_sort_no);
}
if (hide_hitcount) {
drop_menu.append(button_hide_yes);
}
else {
drop_menu.append(button_hide_no);
}
}
// add button for statistics
if ($('#main').is('.stats-index')) {
var button_sort_stats = $('<li></li>').html('<a>↓ Kudos/hits</a>');
button_sort_stats.click(function() {
sortByRatio();
button_sort_stats.after(button_sort_stats_asc).detach();
});
var button_sort_stats_asc = $('<li></li>').html('<a>↑ Kudos/hits</a>');
button_sort_stats_asc.click(function() {
sortByRatio(true);
button_sort_stats_asc.after(button_sort_stats).detach();
});
$('ul.sorting.actions li:nth-child(3)').after('\n', button_sort_stats);
}
}
})(jQuery);