332 lines
11 KiB
JavaScript
332 lines
11 KiB
JavaScript
$(function() {
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// http://localhost:3333/exercises/38/statistics good for testing
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// originally at--> localhost:3333/exercises/69/statistics
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if ($.isController('exercises') && $('.graph-functions').isPresent()) {
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var working_times = $('#data').data('working-time');
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function get_minutes (time_stamp){
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try{
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hours = time_stamp.split(":")[0];
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minutes = time_stamp.split(":")[1];
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seconds = time_stamp.split(":")[2];
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minutes = parseFloat(hours * 60) + parseInt(minutes);
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return minutes
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} catch (err){
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return 0;
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}
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}
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// GET ALL THE DATA ------------------------------------------------------------------------------
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minutes_array = _.map(working_times,function(item){return get_minutes(item)});
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minutes_array_length = minutes_array.length;
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maximum_minutes = _.max(minutes_array);
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var minutes_count = new Array(maximum_minutes);
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for (var i = 0; i < minutes_array_length; i++){
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var studentTime = minutes_array[i];
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for (var j = 0; j < studentTime; j++){
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if (minutes_count[j] == undefined){
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minutes_count[j] = 0;
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} else{
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minutes_count[j] += 1;
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}
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}
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}
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// minutes_count[(maximum_minutes + 1)] = 0;
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//$('.graph-functions').html("<p></p>")
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// var minutes_count = new Array(10);
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// var minutes_array_len = minutes_array.length;
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// for (var i=0; i< minutes_count; i++){
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//
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// for (var j = 0; j < minutes_array_len; j++){
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// if ()
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// }
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// }
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function getWidth() {
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if (self.innerHeight) {
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return self.innerWidth;
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}
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if (document.documentElement && document.documentElement.clientWidth) {
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return document.documentElement.clientWidth;
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}
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if (document.body) {
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return document.body.clientWidth;
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}
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}
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// DRAW THE LINE GRAPH ------------------------------------------------------------------------------
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function draw_line_graph() {
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var width_ratio = .8;
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var height_ratio = .7; // percent of height
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// currently sets as percentage of window width, however, unfortunately
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// is not yet responsive
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var margin = {top: 100, right: 20, bottom: 70, left: 70},//30,50
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width = (getWidth() * width_ratio) - margin.left - margin.right,
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height = (width * height_ratio) - margin.top - margin.bottom;
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//var formatDate = d3.time.format("%M");
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var x = d3.scale.linear()
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.range([0, width]);
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var y = d3.scale.linear()
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.range([height, 0]); // - (height/20
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var xAxis = d3.svg.axis()
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.scale(x)
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.orient("bottom")
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.ticks(20);
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var yAxis = d3.svg.axis()
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.scale(y)
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.orient("left")
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.ticks(20)
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.innerTickSize(-width)
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.outerTickSize(0);
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var line = d3.svg.line()
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.x(function (d, i) {
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return x(i);
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})
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.y(function (d) {
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return y(d / minutes_count[0] * 100);
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});
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var svg = d3.select("#chart_1").append("svg") //PLACEMENT GOES HERE <---------------
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.attr("width", width + margin.left + margin.right)
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.attr("height", height + margin.top + margin.bottom)
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.append("g")
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.attr("transform", "translate(" + margin.left + "," + margin.top + ")");
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x.domain(d3.extent(minutes_count, function (d, i) {
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return (i);
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}));
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y.domain(d3.extent(minutes_count, function (d) {
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return (d / minutes_count[0] * 100);
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}));
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svg.append("g") //x axis
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.attr("class", "x axis")
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.attr("transform", "translate(0," + height + ")")
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.call(xAxis);
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svg.append("text")// x axis label
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.attr("class", "x axis")
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.attr("text-anchor", "middle")
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.attr("x", width / 2)
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.attr("y", height)
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.attr("dy", ((height / 20) + 20) + 'px')
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.text("Time Spent on Assignment (Minutes)")
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.style('font-size', 14);
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svg.append("g") // y axis
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.attr("class", "y axis")
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.call(yAxis);
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svg.append("text") // y axis label
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.attr("transform", "rotate(-90)")
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.attr("x", -height / 2)
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.attr("dy", "-3em")
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.style("text-anchor", "middle")
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.text("Students (%)")
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.style('font-size', 14);
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svg.append("text")// Title
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.attr("class", "x axis")
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.attr("text-anchor", "middle")
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.attr("x", (width / 2))//+300)
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.attr("y", 0)
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.attr("dy", '-1.5em')
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.text("Time Spent by Students on Exercise")
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.style('font-size', 20)
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.style('text-decoration', 'underline');
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svg.append("path")
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.datum(minutes_count)
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.attr("class", "line")
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.attr('id', 'myPath')// new
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.attr("stroke", "orange")
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.attr("stroke-width", 5)
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.attr("fill", "none")// end new
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.attr("d", line);//---
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//.on("mousemove", mMove)//new again
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//.append("title");
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// function type(d) {
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// d.frequency = +d.frequency;
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// return d;
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// }
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}
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draw_line_graph();
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// THIS SHOULD DISPLAY THE X AND Y VALUES BUT
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// THE RESULTS ARE WRONG AT THE END FOR SOME REASON
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//function mMove() {
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// var x_width = getWidth() * width_ratio;
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// //var x_value = m[0]*(minutes_count.length/x_width);
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//
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// var y_height = x_width * height_ratio;
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// //var y_value = (((y_height - m[1])/y_height)*100);
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//
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// //console.log('y is: ' + y_value);
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// var m = d3.mouse(this);
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// d3.select("#myPath").select("title")
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// .text((y_height-m[1])/(y_height) * 100 + "% of Students" +"\n"+
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// (m[0]*(minutes_count.length/x_width)) +" Minutes");//text(m[1]);
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//}
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// DRAW THE SECOND GRAPH ------------------------------------------------------------------------------
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//<script src="http://labratrevenge.com/d3-tip/javascripts/d3.tip.v0.6.3.js"></script>
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function draw_bar_graph() {
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var group_incrament = 5;
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var group_ranges = group_incrament; // just for the start
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var minutes_array_for_bar = [];
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do {
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var section_value = 0;
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for (var i = 0; i < minutes_array.length; i++) {
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if ((minutes_array[i] < group_ranges) && (minutes_array[i] >= (group_ranges - group_incrament))) {
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section_value++;
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}
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}
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minutes_array_for_bar.push(section_value);
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group_ranges += group_incrament;
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}
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while (group_ranges < maximum_minutes + group_incrament);
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//console.log(minutes_array_for_bar); // this var used as the bars
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//minutes_array_for_bar = [39, 20, 28, 20, 39, 34, 26, 23, 16, 8];
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var max_of_array = Math.max.apply(Math, minutes_array_for_bar);
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var min_of_array = Math.min.apply(Math, minutes_array_for_bar);
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var width_ratio = .8;
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var height_ratio = .7; // percent of height
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var margin = {top: 100, right: 20, bottom: 70, left: 70},//30,50
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width = (getWidth() * width_ratio) - margin.left - margin.right,
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height = (width * height_ratio) - margin.top - margin.bottom;
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var x = d3.scale.ordinal()
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.rangeRoundBands([0, width], .1);
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var y = d3.scale.linear()
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.range([0,height-(margin.top + margin.bottom)]);
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var xAxis = d3.svg.axis()
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.scale(x)
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.orient("bottom")
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.ticks(10);
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var yAxis = d3.svg.axis()
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.scale(d3.scale.linear().domain([0,max_of_array]).range([height,0]))//y
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.orient("left")
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.ticks(10)
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.innerTickSize(-width);
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var tip = d3.tip()
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.attr('class', 'd3-tip')
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.offset([-10, 0])
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.html(function(d) {
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return "<strong>Students:</strong> <span style='color:orange'>" + d + "</span>";
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});
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var svg = d3.select("#chart_2").append("svg")
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.attr("width", width + margin.left + margin.right)
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.attr("height", height + margin.top + margin.bottom)
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.append("g")
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.attr("transform", "translate(" + margin.left + "," + margin.top + ")");
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svg.call(tip);
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x.domain(minutes_array_for_bar.map(function (d, i) {
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i++;
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var high_side = i * group_incrament;
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var low_side = high_side - group_incrament;
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return (low_side+"-"+high_side);
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}));
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y.domain(minutes_array_for_bar.map(function (d) {
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return (d);
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}));
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svg.append("g")
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.attr("class", "x axis")
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.attr("transform", "translate(0," + height + ")")
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.call(xAxis);
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svg.append("g")
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.attr("class", "y axis")
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.call(yAxis)
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.append("text")
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.attr("transform", "rotate(-90)")
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.attr("y", 6)
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.attr("dy", ".71em");
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//.style("text-anchor", "end")
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//.text("Students");
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svg.append("text") // y axis label
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.attr("transform", "rotate(-90)")
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.attr("x", -height / 2)
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.attr("dy", "-3em")
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.style("text-anchor", "middle")
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.text("Students")
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.style('font-size', 14);
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svg.append("text")// x axis label
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.attr("class", "x axis")
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.attr("text-anchor", "middle")
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.attr("x", width / 2)
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.attr("y", height)
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.attr("dy", ((height / 20) + 20) + 'px')
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.text("Working Time (Minutes)")
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.style('font-size', 14);
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y = d3.scale.linear()
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.domain([(0),max_of_array])
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.range([0,height]);
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svg.selectAll(".bar")
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.data(minutes_array_for_bar)
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.enter().append("rect")
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.attr("class", "bar")
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.attr("x", function(d,i) { var bar_incriment = width/ minutes_array_for_bar.length;
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var bar_x = i * bar_incriment;
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return (bar_x)})
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.attr("width", x.rangeBand())
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.attr("y", function(d) { return height - y(d); })
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.attr("height", function(d) { return y(d); })
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.on('mouseover', tip.show)
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.on('mouseout', tip.hide);
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svg.append("text")// Title
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.attr("class", "x axis")
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.attr("text-anchor", "middle")
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.attr("x", (width / 2))//+300)
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.attr("y", 0)
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.attr("dy", '-1.5em')
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.text("Distribution of Time Spent by Students")
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.style('font-size', 20)
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.style('text-decoration', 'underline');
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}
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// draw_bar_graph();
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}
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});
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