Tarea4

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Tarea 4

What, why, and how analysis

What?

Dataset Type: Table (A bar chart)

Data Types: Items & Attributes

Codes of students (Categorical type)
Grades (Ordered, quantitative, sequential)

Why?

Actions:

Analyze

Consume → Present

Search

Lookup → Target & Location known

Query

Compare

Targets:

All data

Trends

Attributes

Distribution

How?

Encode

Arrange

Express & Align

Map

Size

Manipulate

Select

Decisions made:

forked from carlosfelipetorres's block: Tarea4

<!DOCTYPE html>
<head>
  <meta charset="utf-8">
  <script src="https://d3js.org/d3.v4.min.js"></script>
  <script type="text/javascript" src="https://code.jquery.com/jquery-1.6.2.min.js"></script> 
    <script type="text/javascript" src="jquery.tipsy.js"></script>
  <link href="tipsy.css" rel="stylesheet" type="text/css" />
  <style>
    body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; }

.bar:hover {
      fill: brown;
    }

.axis {
      font: 10px sans-serif;
    }

.axis path,
    .axis line {
      fill: none;
      stroke: #000;
      shape-rendering: crispEdges;
    }

.x.axis path {
      display: none;
    }
  </style>
  
  <h1>Visualization</h1>
  <h2>Nychol Bazurto G&oacute;mez and Carlos Torres</h2>
  <div id="visualization"></div>
  <label><input type="checkbox"> Sort values</label>
</head>

<body>
  <script>
    
    // load the external data
     // set the dimensions and margins of the graph
    var margin = {top: 20, right: 20, bottom: 30, left: 40},
          width = 1260 - margin.left - margin.right,
          height = 500 - margin.top - margin.bottom;

// set the ranges
    var x = d3.scaleBand()
              .range([0, width])
              .padding(0.1);
    var y = d3.scaleLinear()
              .range([height, 0]);
   
    
    var tooltip = d3.select("body")
        .append("div").append("div").append("div")
        .style("position", "absolute")
        .style("z-index", "10")
        .style("visibility", "hidden");

var svg = d3.select("body").append("svg")
        .attr("width", width + margin.left + margin.right)
        .attr("height", height + margin.top + margin.bottom)
        .append("g")
        .attr("transform", 
              "translate(" + margin.left + "," + margin.top + ")");

var color = d3.scaleOrdinal(d3.schemeCategory20c);
    
    x.domain(data.map(function(d) { return d.index; }));
    y.domain([0, d3.max(data, function(d) { return d.value; })]);

svg.selectAll(".bar")
        .data(data)
        .enter().append("rect")
        .attr("class", "bar")
        .attr("x", function(d) { return x(d.index); })
        .attr("width", x.bandwidth())
        .attr("y", function(d) { return y(d.value); })
        .attr("height", function(d) { return height - y(d.value); })
    		.style("fill", function(d){ return color(d.value); });

// add the x Axis
    svg.append("g")
    		.attr("class", "x axis")
        .attr("transform", "translate(0," + height + ")")
        .call(d3.axisBottom(x));

// add the y Axis
    svg.append("g")
    		.attr("class", "y axis")
        .call(d3.axisLeft(y));
    
    $('rect').tipsy({ 
      gravity: 's', 
      html: true, 
      title: function() {
        var d = this.__data__;
        return +d.value; 
            }
    });
    
    d3.select("input").on("change", sortArray);

var sortTimeout = setTimeout(function() {
      d3.select("input").property("checked", true).each(sortArray);
    }, 2000);
    
function sortArray (){
   clearTimeout(sortTimeout);

// Copy-on-write since tweens are evaluated after a delay.
    var x0 = x.domain(data = data.sort(function (a, b) {
        if (a.value < b.value) return -1;
        if (a.value > b.value) return 1;
        	return 0;})
        .map(function(d) {console.log(d.value); return d.index; }))
        .copy();

svg.selectAll(".bar")
        .sort(function(a, b) { return x0(a.index) - x0(b.index); });

var transition = svg.transition().duration(750),
        delay = function(d, i) { return i * 50; };

transition.selectAll(".bar")
        .delay(delay)
        .attr("x", function(d) { return x0(d.index); });

transition.select(".x.axis")
        .call(x)
      	.selectAll("g")
        .delay(delay);
}
  </script>
</body>

Modified http://code.jquery.com/jquery-1.6.2.min.js to a secure url

https://d3js.org/d3.v4.min.js

https://code.jquery.com/jquery-1.6.2.min.js