Module 2

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="utf-8">
    <title>Women in Conress</title>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.6/d3.min.js">
    </script>

h1 {
            font-size: 25px;
            font-weight: bolder;
            padding-top: 10px;
            padding-left: 5px;
            margin: auto;
        }

p {
            font-size: 20px;
            padding-left: 5px;
            margin: 10px auto;
        }
        
        a:link {
            color: black;
            text-decoration: underline;
        }

a:visited {
            color: purple;
        }

svg {
            background-color: #FFF1E0;
            margin: auto;
        }

path:hover {
            opacity: 1.0;
        }

.y.axis path,
        .y.axis line {
            opacity: 0;
        }

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

.axis text {
            font-size: 20px;
            fill: dimGray;
        }

.gridlines{
            stroke: black;
            stroke-width: 2px;
            stroke-dasharray: 1, 5;
        }

.chartLabels {
            font-size: 25px;
            text-anchor: end;            
        }
        
        .headline,
        .footer {
            margin: auto;
            width: 1000px;
        }

#container {
            background-color: #FFF1E0;
            margin: auto;
            width: 1000px;
        }

</style>
</head>

<body>

<div class="headline">
        <h1>Women in the U.S. Congress</h1>
        <p>In 1916, Jeannette Rankin became the first woman elected to serve in Congress. Today, nearly a century later, women still have not achieved parity with male senators and representatives. Less than one-fourth of Congress is female. Most female members of Congress are <b style="color:dodgerBlue">Democrats</b>, but the proportion of <b style="color:crimson">Republican</b> women has been increasing.
        <br>
        </p>
    </div>
    
    <div id="container">
    </div>  
    
    <div class="footer">
        <p>Source: <a href="https://www.cawp.rutgers.edu/history-women-us-congress">Center for American Women and Politics</a>
        </p>        
    </div>

var stack = d3.layout.stack()
            .values(function(d) {
                return d.percent;
            })

var w = 1000;
        var h = 650;
        var padding = {top: 25, bottom: 30, left: 5, right: 5};

var dateFormat = d3.time.format("%Y");

var xScale = d3.time.scale()
            .range([ padding.left, w - padding.right ]);
			
        var yScale = d3.scale.linear()
            .range([ padding.top, h - padding.bottom ]);

var xAxis = d3.svg.axis()
            .scale(xScale)
            .orient("bottom")
            .ticks(10)
            .tickFormat(function(d) {
                return dateFormat(d);
            });

var yAxis = d3.svg.axis()
            .scale(yScale)
            .tickValues([25, 50, 75, 100])
            .tickFormat(function(d) { return d + "%"; })
            .orient("right");

var color = d3.scale.ordinal()
            .domain(["femaleDem", "femaleGOP", "malePercent"])
            .range( ["dodgerBlue", "crimson", "#FFF1E0"]);
            
        var svg = d3.select("#container")
            .append("svg")
            .attr("width", w)
            .attr("height", h);

d3.csv("genderCongress.csv", function(data) {

console.log(data);

var years = [
                "1917", "1918", "1919",
                "1920", "1921", "1922", "1923", "1924",
                "1925", "1926", "1927", "1928", "1929",
                "1930", "1931", "1932", "1933", "1934",
                "1935", "1936", "1937", "1938", "1939",
                "1940", "1941", "1942", "1943", "1944",
                "1945", "1946", "1947", "1948", "1949",
                "1950", "1951", "1952", "1953", "1954",
                "1955", "1956", "1957", "1958", "1959",
                "1960", "1961", "1962", "1963", "1964",
                "1965", "1966", "1967", "1968", "1969",
                "1970", "1971", "1972", "1973", "1974",
                "1975", "1976", "1977", "1978", "1979",
                "1980", "1981", "1982", "1983", "1984",
                "1985", "1986", "1987", "1988", "1989",
                "1990", "1991", "1992", "1993", "1994",
                "1995", "1996", "1997", "1998", "1999",
                "2000", "2001", "2002", "2003", "2004",
                "2005", "2006", "2007", "2008", "2009",
                "2010", "2011", "2012", "2013", "2014",
                "2015"];

var dataset = [];

for (var i = 0; i < data.length; i++) {

dataset[i] = {
                    gender: data[i].genderType,
                    percent: []
                };

for (var j = 0; j < years.length; j++) {

var amount = null;

if (data[i][years[j]]) {
                        amount = +data[i][years[j]];
                    }

dataset[i].percent.push({
                        x: years[j],
                        y: amount
                    });
                }
            }

stack(dataset);

xScale.domain([ 
                d3.min(years, function(d) {
                    return dateFormat.parse(d);
                }),
                d3.max(years, function(d) {
                    return dateFormat.parse(d);
                })
            ]);

var totals = [];

for (i = 0; i < years.length; i++) {
                totals[i] = 0;
                for (j = 0; j < dataset.length; j++) {
                    totals[i] += dataset[j].percent[i].y;
                }
            }

yScale.domain([ d3.max(totals), 0 ]);

var paths = svg.selectAll("path")
                .data(dataset)
                .enter()
                .append("path")
                .attr({
                    "class": "area",
                    "d": function(d) { return area(d.percent)},
                    "stroke": "none",
                    "fill": function(d, i) { return color(i);},
                    opacity: 0.85,
                });

for (i = 25; i <= 100; i += 25) {
                svg.append("line")
                    .attr({
                        x1: padding.left,
                        y1: yScale(i),
                        x2: w - padding.right,
                        y2: yScale(i),
                        "class": "gridlines",
                    });
            }

svg.append("g")
                .attr({
                    "class": "x axis",
                    "transform": "translate(0, " + (h - padding.bottom) + ")"
                })
                .call(xAxis);

svg.append("g")
                .attr({
                    "class": "y axis",
                    "transform": "translate(" + (w - 60) + ", -16)"
                })
                .call(yAxis);

svg.append("text")
                .attr({
                    x: 990,
                    y: 500,
                    fill: "crimson",
                    class: "chartLabels"
                })
                .text("Republican women");

svg.append("text")
                .attr({
                    x: 990,
                    y: 610,
                    fill: "black",
                    class: "chartLabels"
                })
                .text("Democratic women");

});

</script>
</body>
</html>

https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.6/d3.min.js