Data_Visualization/old_version_index_1.html at master · rknlhrqy/Data_Visualization · GitHub

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<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <script src="http://d3js.org/d3.v3.min.js"></script>
    <style>
    h2 {
	text-align: center;
    }
    .chart rect {
        fill: steelblue;
    }
    </style>
    <script type="text/javascript">
    function draw(data) {
	"use strict"
        var margin = 75,
	    width = 1400 - margin,
	    height = 600 - margin;


	d3.select("body")
	    .append("h2")
	    .text("Titanic Passenger Survival Rate");

        var svg = d3.select("body")
            .append("svg")
            .attr("width", width + margin)
            .attr("height", height + margin)
            .append('g')
            .attr('class','chart');

        var rate_scale = d3.scale.linear()
	    .range([height, margin])
	    .domain([0, 1]);

	var rate_axis = d3.svg.axis()
	    .scale(rate_scale)
	    .orient("left");

	d3.select("svg")
	    .append("g")
	    .attr("class", "y axis")
	    .attr("transform", "translate(" + margin + ", 0)")
	    .call(rate_axis);

	var nested = d3.nest()
	    .key(function(d) {
                return d['Sex'];
	    })
	    .rollup(function(leaves) {
                var totalSurvived = d3.sum(leaves, function(d) {
		    return d['Survived'];
		});
		debugger;
		var total = data.length;
		var rate = totalSurvived/total;

		return {
		    'rate': rate
		};

	})
	.entries(data);

	var elementWidth = 240;
	var category_scale = d3.scale.ordinal()
	    .rangeRoundBands([0, elementWidth]);
	    //.domain(nested);
	debugger;
	var category_axis = d3.svg.axis()
	    .scale(category_scale)
	    .orient("bottom");
	debugger;
	d3.select("svg")
	    .append("g")
	    .attr("class", "x axis")
	    .attr("transform", "translate(" + margin + ", " + height + ")")
	    .call(category_axis);


	debugger;
	var svg = d3.select(".chart")
	    .attr("width", elementWidth)
	    .attr("height", height);

	var chart = svg.append("g");

	debugger;
	var b1 = chart.append("g.bar-group");
	var b2 = b1
	    .data(nested);
	var b3 = b2
            .enter();
	var b4 = b3
	    .append("g");
        var bar = b4
	    .attr("class", "bar-group");

	debugger;
	var bar_rect = bar.append("rect")
	    .attr("y", height)
	    .attr("width", elementWidth)
	    .attr("height", 0)
	    .attr("class", "bar")
	    .transition()
            .duration(1500)
	    .attr("x", margin)
	    .attr("y", function(d) {
	        debugger;
		/*if (d.key === "female") {*/
		//return d.values["rate"];
		return rate_scale(0.55);
		/*}*/
            })
	    .attr("height", function(d) {
	        //return height - d.values["rate"];
	        return height - rate_scale(0.55);
	    })
	    .attr("textContent", function(d) { return d.values["rate"];});

	    /*
	debugger;
	var bar_text = bar.append("text")
	    .attr("x", margin)
	    .attr("y", rate_scale - 10)
	    .attr("dx", ".35em")
	    .text(function(d) { return d["rate"];});
*/
	debugger;
    };
    </script>
  </head>
<body>
  <script type="text/javascript">
  d3.csv("titanic_data.csv", draw);
  </script>
</body>
</html>