n@1223: /*
n@1223: * Analysis script for WAET
n@1223: */
n@1223: 
n@1223: var chartContext;
n@1223: window.onload = function() {
n@1223:     // Load the Visualization API and the corechart package.
n@1223:       google.charts.load('current', {'packages':['corechart']});
n@1223:     chartContext = new Chart();
n@1223: }
n@1223: 
n@1227: function arrayMean(values) {
n@1227:     var mean = 0;
n@1227:     for (var value of values) {
n@1227:         mean += value;
n@1227:     }
n@1227:     mean /= values.length;
n@1227:     return mean;
n@1227: }
n@1227: 
n@1227: function percentile(values, n) {
n@1227:     values.sort( function(a,b) {return a - b;} );
n@1227:     // get ordinal rank
n@1227:     var rank = Math.min(Math.floor(values.length*n/100), values.length-1);
n@1227:     return values[rank];
n@1227: }
n@1227: 
n@1227: function arrayMin(array) {
n@1227:     // Return the minimum value of an array
n@1227:     var min = array[0];
n@1227:     for (var value of array) {
n@1227:         if (value < min) {
n@1227:             min = value;
n@1227:         }
n@1227:     }
n@1227:     return min;
n@1227: }
n@1227: 
n@1227: function arrayMax(array) {
n@1227:     // Return the minimum value of an array
n@1227:     var max = array[0];
n@1227:     for (var value of array) {
n@1227:         if (value > max) {
n@1227:             max = value;
n@1227:         }
n@1227:     }
n@1227:     return max;
n@1227: }
n@1227: 
n@1227: function arrayHistogram(values,steps,min,max) {
n@1227:     if (steps == undefined) {
n@1227:         steps = 0.25;
n@1227:         console.log("Warning: arrayHistogram called without steps size set, default to 0.25");
n@1227:     }
n@1227:     if (min == undefined) {min = arrayMin(values);}
n@1227:     if (max == undefined) {max = arrayMax(values);}
n@1227:     var histogram = [];
n@1227:     var index = min;
n@1227:     while(index < max) {
n@1227:         histogram.push({
n@1227:             marker: index,
n@1227:             lt: index,
n@1227:             rt: index+steps,
n@1227:             count: 0
n@1227:         });
n@1227:         index += steps;
n@1227:     }
n@1227:     for (var value of values) {
n@1227:         for (var entry of histogram) {
n@1227:             if (value >= entry.lt && value <= entry.rt) {
n@1227:                 entry.count++;
n@1227:                 break;
n@1227:             }
n@1227:         }
n@1227:     }
n@1227:     return histogram;
n@1227: }
n@1227: 
n@1223: function Chart() {
n@1226:     this.valueData = null;
n@1226:     this.commentData = null;
n@1226:     this.loadStatus = 0;
n@1227:     this.charts = [];
n@1223:     
n@1226:     var XMLHttp = new XMLHttpRequest();
n@1226:     XMLHttp.parent = this;
n@1226:     XMLHttp.open("GET","../scripts/score_parser.php?format=JSON",true);
n@1226:     XMLHttp.onload = function() {
n@1226:         // Now we have the JSON data, extract
n@1226:         this.parent.valueData = JSON.parse(this.responseText);
n@1226:         this.parent.loadStatus++;
n@1223:     }
n@1226:     XMLHttp.send();
n@1226:     var XMLHttp2 = new XMLHttpRequest();
n@1226:     XMLHttp2.parent = this;
n@1226:     XMLHttp2.open("GET","../scripts/comment_parser.php?format=JSON",true);
n@1226:     XMLHttp2.onload = function() {
n@1226:         // Now we have the JSON data, extract
n@1226:         this.parent.commentData = JSON.parse(this.responseText);
n@1226:         this.parent.loadStatus++;
n@1226:     }
n@1226:     XMLHttp2.send();
n@1223:     
n@1227:     this.chartObject = function(name) {
n@1227:         // Create the charting object
n@1227:         this.name = name;
n@1227:         this.root = document.createElement("div");
n@1227:         this.root.className = "chart-holder";
n@1227:         this.root.setAttribute("name",name);
n@1227:         this.chartDOM = document.createElement("div");
n@1227:         this.tableDOM = document.createElement("div");
n@1227:         this.latexDOM = document.createElement("div");
n@1227:         this.downloadDOM = document.createElement("div");
n@1227:         this.chart = undefined;
n@1227:         this.data = new google.visualization.DataTable();
n@1227:         this.options = {};
n@1227:         this.print = document.createElement("button");
n@1228:         this.sortDataButton = document.createElement("button");
n@1228:         this.sortDataButton.textContent = "Sort by Data";
n@1228:         this.sortDataButton.addEventListener("click",this);
n@1228:         this.sortDataButton.setAttribute("name","sort-data");
n@1228:         this.sortNameButton = document.createElement("button");
n@1228:         this.sortNameButton.textContent = "Sort by Name";
n@1228:         this.sortNameButton.addEventListener("click",this);
n@1228:         this.sortNameButton.setAttribute("name","sort-name");
n@1228:         this.draw = function() {
n@1228:             if (this.chart == undefined) {return;}
n@1228:             this.tableDOM.innerHTML = null;
n@1228:             this.latexDOM.innerHTML = null;
n@1228:             this.buildTable();
n@1228:             this.writeLatex();
n@1228:             this.chart.draw(this.data,this.options);
n@1228:         }
n@1228:         this.sortData = function() {
n@1265:             this.data.sort(1);
n@1228:         }
n@1228:         this.sortName = function() {
n@1265:             this.data.sort(0);
n@1228:         }
n@1227:         this.handleEvent = function() {
n@1227:             // Only used to handle the chart.event.addListener(this,'ready') callback
n@1228:             switch(event.currentTarget.getAttribute("name"))
n@1228:             {
n@1228:                 case "download":
n@1228:                     window.open(this.chart.getImageURI());
n@1228:                     break;
n@1228:                 case "sort-data":
n@1228:                     this.sortData();
n@1228:                     this.draw();
n@1228:                     break;
n@1228:                 case "sort-name":
n@1228:                     this.sortName();
n@1228:                     this.draw();
n@1228:                     break;
n@1228:             }
n@1227:         }
n@1227:         
n@1227:         this.root.appendChild(this.chartDOM);
n@1227:         this.root.appendChild(this.tableDOM);
n@1227:         this.root.appendChild(this.latexDOM);
n@1228:         this.root.appendChild(this.sortDataButton);
n@1228:         this.root.appendChild(this.sortNameButton);
n@1227:         this.root.appendChild(this.print);
n@1227:         this.print.textContent = "Download";
n@1228:         this.print.setAttribute("name","download");
n@1227:         this.print.addEventListener("click",this);
n@1227:         this.root.appendChild(this.downloadDOM);
n@1227:         this.buildTable = function() {
n@1227:             var table = document.createElement("table");
n@1227:             table.border = "1";
n@1264:             var numRows = this.data.getNumberOfRows();
n@1264:             var numColumns = this.data.getNumberOfColumns();
n@1264:             for (var columnIndex=0; columnIndex<numColumns; columnIndex++)
n@1264:             {
n@1264:                 var table_row = document.createElement('tr');
n@1264:                 table.appendChild(table_row);
n@1264:                 var row_title = document.createElement('td');
n@1264:                 table_row.appendChild(row_title);
n@1264:                 row_title.textContent = this.data.getColumnLabel(columnIndex);
n@1264:                 for (var rowIndex=0; rowIndex<numRows; rowIndex++)
n@1264:                 {
n@1264:                     var row_entry = document.createElement('td');
n@1264:                     table_row.appendChild(row_entry);
n@1264:                     var entry = this.data.getValue(rowIndex,columnIndex);
n@1264:                     if (isFinite(Number(entry)))
n@1264:                     {
n@1264:                         entry = String(Number(entry).toFixed(4));
n@1264:                     }
n@1264:                     row_entry.textContent = entry;
n@1227:                 }
n@1227:             }
n@1227:             this.tableDOM.appendChild(table);
n@1227:         };
n@1227:         this.writeLatex = function() {
n@1264:             var numRows = this.data.getNumberOfRows();
n@1264:             var numColumns = this.data.getNumberOfColumns();
n@1227:             var root = document.createElement("div");
n@1227:             root.className = "code";
n@1227:             var holder = document.createElement("pre");
n@1227:             // Table start
n@1227:             var start = document.createElement("p");
n@1227:             start.textContent = "\\" + "begin{tabular}{|l|";
n@1227:             holder.appendChild(start);
n@1264:             for (var i=0; i<numRows; i++) {
n@1227:                 start.textContent = start.textContent+"c|";
n@1227:             }
n@1228:             start.textContent = start.textContent.concat("}");
n@1227:             // Now write the rows:
n@1264:             for (var rIndex=0; rIndex<numColumns; rIndex++) {
n@1227:                 var row = document.createElement("p");
n@1264:                 row.textContent = this.data.getColumnLabel(rIndex).concat(" & ");
n@1264:                 for (var cIndex=0; cIndex<numRows; cIndex++) {
n@1264:                     var entry = this.data.getValue(cIndex,rIndex);
n@1264:                     if (isFinite(Number(entry)))
n@1264:                     {
n@1264:                         entry = String(Number(entry).toFixed(4));
n@1264:                     }
n@1264:                     row.textContent = row.textContent.concat(entry);
n@1264:                     if (cIndex < numRows-1) {
n@1227:                         row.textContent = row.textContent.concat(" & ");
n@1227:                     }
n@1227:                 }
n@1227:                 holder.appendChild(row);
n@1227:             }
n@1227:             // Table end
n@1227:             var end = document.createElement("p");
n@1227:             end.textContent = "\\" + "end{tabular}";
n@1227:             holder.appendChild(end);
n@1227:             root.appendChild(holder);
n@1227:             this.latexDOM.appendChild(root);
n@1227:         }
n@1227:     }
n@1227:     
n@1227:     this.clear = function() {
n@1227:         var inject = document.getElementById("test-pages");
n@1227:         for (var chart of this.charts) {
n@1227:             inject.removeChild(chart.root);
n@1227:         }
n@1227:         this.charts = [];
n@1227:     }
n@1227:     
n@1227:     this.drawTestMean = function() {
n@1227:         // This draws one bargraph per axis with every test element on
n@1227:         if (this.valueData == null) {
n@1227:             console.log("Error - Data not loaded");
n@1227:             return;
n@1227:         }
n@1227:         var chartList = [];
n@1227:         
n@1227:         // Create the data table
n@1227:         for (var page of this.valueData.pages) {
n@1227:             for (var element of page.elements) {
n@1227:                 for (var axis of element.axis) {
n@1227:                     // Find the axis
n@1227:                     var axisChart = chartList.find(function(element,index,array){
n@1227:                         if (element.name == this) {return true;} else {return false;}
n@1227:                     },"mean-test-"+axis.id);
n@1227:                     if (axisChart == null) {
n@1227:                         axisChart = new this.chartObject("mean-test-"+axis.id);
n@1227:                         axisChart.options = {
n@1227:                             'title':'Mean of axis: '+axis.name,
n@1227:                             'width':window.innerWidth*0.9,
n@1227:                             'height':(window.innerWidth*0.9)/1.77
n@1227:                         }
n@1227:                         axisChart.data.addColumn('string','id');
n@1227:                         axisChart.data.addColumn('number',axis.name);
n@1227:                         chartList.push(axisChart);
n@1227:                         document.getElementById("test-pages").appendChild(axisChart.root);
n@1227:                     }
n@1227:                     var mean = arrayMean(axis.values);
n@1227:                     axisChart.data.addRow([element.id,mean]);
n@1227:                 }
n@1227:             }
n@1227:         }
n@1227:         
n@1227:         // Build and push charts
n@1227:         for (var chart of chartList) {
n@1227:             chart.chart = new google.visualization.ColumnChart(chart.chartDOM);
n@1227:             chart.chart.draw(chart.data,chart.options);
n@1227:             chart.buildTable();
n@1227:             chart.writeLatex();
n@1227:             this.charts.push(chart);
n@1227:         }
n@1227:     }
n@1227:     
n@1227:     this.drawPageMean = function() {
n@1223:         // First we must get the value data
n@1226:         if (this.valueData == null) {
n@1226:             console.log("Error - Data not loaded");
n@1226:             return;
n@1226:         }
n@1226:         // We create one plot per page
n@1226:         for (var page of this.valueData.pages) {
n@1227:             
n@1227:             // Create the chart resulting point
n@1227:             var chart = new this.chartObject("mean-page-"+page.id);
n@1227:             document.getElementById("test-pages").appendChild(chart.root);
n@1226:             
n@1226:             // Create the data table
n@1227:             chart.data.addColumn('string','id');
n@1226:             // Get axis labels
n@1226:             for (var axis of page.elements[0].axis) {
n@1227:                 chart.data.addColumn('number',axis.name);
n@1226:             }
n@1226:             var rows = []; // Rows is an array of tuples [col1, col2, col3 ... colN];
n@1226:             for (var element of page.elements) {
n@1226:                 var entry = [element.id];
n@1226:                 for (var i=0; i<page.elements[0].axis.length; i++) {
n@1226:                     var mean =0;
n@1226:                     if (i < element.axis.length) {
n@1226:                         var axis = element.axis[i];
n@1227:                         mean = arrayMean(axis.values);
n@1226:                     }
n@1226:                     entry.push(mean);
n@1226:                 }
n@1226:                 rows.push(entry);
n@1226:             }
n@1227:             chart.data.addRows(rows);
n@1227:             chart.options = {
n@1227:                 'title':'Mean of page: '+page.id,
n@1227:                 'width':800,
n@1227:                 'height':700
n@1227:             }
n@1226:             // Draw the chart
n@1227:             chart.chart = new google.visualization.ColumnChart(chart.chartDOM);
n@1227:             chart.chart.draw(chart.data,chart.options);
n@1227:             chart.buildTable();
n@1227:             chart.writeLatex();
n@1227:             this.charts.push(chart);
n@1227:         }
n@1227:     }
n@1227:     
n@1227:     this.drawElementHistogram = function() {
n@1227:         // First we must get the value data
n@1227:         if (this.valueData == null) {
n@1227:             console.log("Error - Data not loaded");
n@1227:             return;
n@1227:         }
n@1227:         // We create one plot per element, enjoy...
n@1227:         for (var page of this.valueData.pages) {
n@1227:             for (var element of page.elements) {
n@1227:                 // Build the chart object
n@1227:                 var chart = new this.chartObject("histogram-element-"+element.id);
n@1227:                 document.getElementById("test-pages").appendChild(chart.root);
n@1227:                 chart.data.addColumn('string','index');
n@1227:                 var histograms = [];
n@1227:                 for (var axis of element.axis) {
n@1227:                     chart.data.addColumn('number',axis.name);
n@1227:                     histograms.push(arrayHistogram(axis.values,0.125,0.0,1.0));
n@1227:                 }
n@1227:                 for (var axis of element.axis) {
n@1227:                     for (var i=0; i<histograms[0].length; i++)
n@1227:                     {
n@1227:                         var entry = [""+histograms[0][i].lt.toPrecision(2)+"-"+histograms[0][i].rt.toPrecision(3)]
n@1227:                         for (var histogram of histograms) {
n@1227:                             entry.push(histogram[i].count);
n@1227:                         }
n@1227:                         chart.data.addRow(entry);
n@1227:                     }
n@1227:                 }
n@1227:                 chart.options = {
n@1227:                     'title':'Histogram of element: '+element.id,
n@1227:                     'width':800,
n@1227:                     'height':700,
n@1227:                     'bar':{'groupWidth': '100%'}
n@1227:                 }
n@1227:                 // Draw the chart
n@1227:                 chart.chart = new google.visualization.ColumnChart(chart.chartDOM);
n@1227:                 chart.chart.draw(chart.data,chart.options);
n@1227:                 chart.buildTable();
n@1227:                 chart.writeLatex();
n@1227:                 this.charts.push(chart);
n@1227:             }
n@1226:         }
n@1223:     }
n@1223: }