snvssk.github.io/county_linechart.html at main · snvssk/snvssk.github.io · GitHub

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<!DOCTYPE html>
<head>
<meta charset="utf-8">
<title>Multi Line Chart</title>
<script type="text/javascript" src="https://d3js.org/d3.v4.min.js"></script>
<style>

</style>
</head>
<body>
    <select id="year_select"></select>
    <select id="month_select"></select>
    <select id="metric_select"></select>
    <div id="my_dataviz"></div>

<script>

    var dropDown = d3.select("#year_container").append("select").attr("name", "year-list");


    // set the dimensions and margins of the graph
    var margin = {top: 30, right: 30, bottom: 70, left: 60},
        width = 1260 - margin.left - margin.right,
        height = 400 - margin.top - margin.bottom;

    // append the svg object to the body of the page
    var svg = d3.select("#my_dataviz")
      .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 + ")");

    // Parse the Data
    d3.csv("https://snvssk.github.io/County_employment.csv", function(data) {

    //Find all years from csv data
    function onlyUnique(value, index, self) {
        return self.indexOf(value) === index;
    }

    // Dropdown elements creation:
    var a = data.map(function(d) { return d.Year; })
    var allyears = a.filter(onlyUnique);
    var b = data.map(function(d) { return d.Period; })
    var allmonths = b.filter(onlyUnique)

    var allMetrics = ["LaborForce","Employment","Unemployment"]


    //dropdown
    d3.select('#year_select')
        .selectAll("myOptions")
        .data(allyears)
        .enter()
        .append("option")
        .text(function (y) { return y; })
        .attr("value", function (y) { return y; });


    d3.select('#month_select')
        .selectAll("myOptions")
        .data(allmonths)
        .enter()
        .append("option")
        .text(function (y) { return y; })
        .attr("value", function (y) { return y; });

    d3.select('#metric_select')
        .selectAll("myOptions")
        .data(allMetrics)
        .enter()
        .append("option")
        .text(function (y) { return y; })
        .attr("value", function (y) { return y; });


    function update(selectedYear,selectedMonth,selectedMetric) {
    //console.log(data)
    //console.log(selectedYear)
    //console.log(selectedMonth)
    filtered_data = data.filter(function(row) {
                return (row['Year'] == selectedYear &&  row['Period'] == selectedMonth );
             })

    console.log(selectedMetric)
    field_data = filtered_data.map(function(fileds) {
                return { Year : fileds.Year, County: fileds.County, Value : parseInt(fileds[selectedMetric]) };
             })

    //console.log(filtered_data)

    svg.selectAll("*").remove();

    // X axis
    var x = d3.scaleBand()
      .range([ 0, width ])
      .domain(data.map(function(d) { return d.County; }))
      .padding(0.2);

    svg.append("g")
      .attr("transform", "translate(0," + height + ")")
      .call(d3.axisBottom(x))
      .selectAll("text")
      .attr("transform", "translate(-10,0)rotate(-45)")
      .style("text-anchor", "end");


    y_scale = d3.max(field_data, function(d) { return d.Value; } )+100000;

    console.log(y_scale)

    // Add Y axis
    var y = d3.scaleLinear()
      .domain([0, y_scale])
      .range([ height, 0]);

    svg.append("g")
      .call(d3.axisLeft(y));

    svg.append("text")
        .attr("transform", "rotate(-90)")
        .attr("x", -(height/2))
        .attr("y", -50)
        .style("text-anchor", "middle")
        .text("Population");

    svg.append("text")
        .attr("x", width/2)
        .attr("y", 5)
        .attr("text-anchor", "middle")
        .style("font-size", "16px")
        .text("County wise Employment Statstics");

    console.log(field_data)

    // Bars
    svg.selectAll("mybar")
        .data(field_data)
        .enter()
        .append("rect")
        .attr("x", function(d) { return x(d.County);})
        .attr("y", function(d) { return y(d.Value);})
        .attr("width", x.bandwidth())
        .attr("height", function(d) { return height - y(d.Value); })
        .attr("fill", "lightgreen")

    }


    // When the year is changed, run the updateChart function
    d3.select("#year_select").on("change", function(d) {
        // recover the option that has been chosen
        var selectedYear = d3.select(this).property("value")
        var selectedMonth = d3.select('#month_select').property("value")
        var selectedMetric = d3.select('#metric_select').property("value")
        // run the updateChart function with this selected option
        update(selectedYear,selectedMonth,selectedMetric)
    })

    // When the month is changed, run the updateChart function
    d3.select("#month_select").on("change", function(d) {
        // recover the option that has been chosen
        var selectedMonth = d3.select(this).property("value")
        var selectedYear = d3.select('#year_select').property("value")
        var selectedMetric = d3.select('#metric_select').property("value")
        // run the updateChart function with this selected option
        update(selectedYear,selectedMonth,selectedMetric)
    })

    // When the Metric is changed, run the updateChart function
    d3.select("#metric_select").on("change", function(d) {
        // recover the option that has been chosen
        var selectedMetric = d3.select(this).property("value")
        var selectedMonth = d3.select('#month_select').property("value")
        var selectedYear = d3.select('#year_select').property("value")
        // run the updateChart function with this selected option
        update(selectedYear,selectedMonth,selectedMetric)
    })


    update(2021,'Jan','LaborForce')


})


    </script>
</body>