How to assign id to the bar chart - d3.js

How can I assign id base on its name?
the link of the screenshot of the console is down below.
Thanks
serie.selectAll("rect")
.data(function(d) { return d; })
.enter().append("rect")
.attr("class","bar")
.attr("x", function(d) { return x(d.data.Company); })
.attr("y", function(d) { return y(d[1]); })
.attr("height", function(d) { return y(d[0]) - y(d[1]); })
.attr("width", x.bandwidth())
.attr("id",function(d,i){
return "id"+ d.name;
})

I discourage assigning ids to every bar as ids need to be unique. Its better to have a class instead. But as requested, I have posted a fiddle below. Hover on the bars to get the id. And you also said you need the id for animating so I've also added some animations when the chart loads (If that's what you meant by animation).
// Setup svg using Bostock's margin convention
var margin = {
top: 20,
right: 160,
bottom: 35,
left: 30
};
var width = 700 - margin.left - margin.right,
height = 300 - margin.top - margin.bottom;
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 + ")");
/* Data in strings like it would be if imported from a csv */
var data = [{
mystate: "Intuit",
name: "Asian",
y0: 53,
y1: 1824,
value: "1771"
}, {
mystate: "Intuit",
name: "Latino",
y0: 2707,
y1: 1231,
value: "1771"
}, {
mystate: "Intuit",
name: "Black_or_African_American",
y0: 2060,
y1: 1824,
value: "1771"
}, {
mystate: "Intuit",
name: "Caucasian",
y0: 355,
y1: 1024,
value: "1771"
}];
// Transpose the data into layers
var dataset = d3.layout.stack()(['y0', 'y1'].map(function(values) {
return data.map(function(d) {
return {
x: d.name,
y: +d[values],
};
});
}));
// Set x, y and colors
var x = d3.scale.ordinal()
.domain(dataset[0].map(function(d) {
return d.x;
}))
.rangeRoundBands([10, width - 10], 0.02);
var y = d3.scale.linear()
.domain([0, d3.max(dataset, function(d) {
return d3.max(d, function(d) {
return d.y0 + d.y;
});
})])
.range([height, 0]);
var colors = ["b33040", "#d25c4d", "#f2b447", "#d9d574"];
// Define and draw axes
var yAxis = d3.svg.axis()
.scale(y)
.orient("left")
.ticks(5)
.tickSize(-width, 0, 0)
.tickFormat(function(d) {
return d
});
var xAxis = d3.svg.axis()
.scale(x)
.orient("bottom");
svg.append("g")
.attr("class", "y axis")
.call(yAxis);
svg.append("g")
.attr("class", "x axis")
.attr("transform", "translate(0," + height + ")")
.call(xAxis);
// Create groups for each series, rects for each segment
var groups = svg.selectAll("g.cost")
.data(dataset)
.enter().append("g")
.attr("class", "cost")
.style("fill", function(d, i) {
return colors[i];
});
var rect = groups.selectAll("rect")
.data(function(d) {
return d;
})
.enter()
.append("rect")
.attr("x", function(d) {
return x(d.x);
})
.attr("y", function(d) {
return height;
})
.attr("height", function(d) {
return 0;
})
.attr("width", x.rangeBand())
.attr('id', function(d) {
return 'id' + d.x;
})
.on("mouseover", function() {
console.log(d3.select(this).attr('id'));
tooltip.style("display", null);
})
.on("mouseout", function() {
tooltip.style("display", "none");
})
.on("mousemove", function(d) {
var xPosition = d3.mouse(this)[0] - 15;
var yPosition = d3.mouse(this)[1] - 25;
tooltip.attr("transform", "translate(" + xPosition + "," + yPosition + ")");
tooltip.select("text").text(d.y);
}).transition().duration(1000)
.delay(function(d, i) {
return i * 300;
})
.attr("height", function(d) {
return y(d.y0) - y(d.y0 + d.y);
}).attr("y", function(d) {
return y(d.y0 + d.y);
});
// Prep the tooltip bits, initial display is hidden
var tooltip = svg.append("g")
.attr("class", "tooltip")
.style("display", "none");
tooltip.append("rect")
.attr("width", 30)
.attr("height", 20)
.attr("fill", "white")
.style("opacity", 0.5);
tooltip.append("text")
.attr("x", 15)
.attr("dy", "1.2em")
.style("text-anchor", "middle")
.attr("font-size", "12px")
.attr("font-weight", "bold");
svg {
font: 10px sans-serif;
shape-rendering: crispEdges;
}
.axis path,
.axis line {
fill: none;
stroke: #000;
}
path.domain {
stroke: none;
}
.y .tick line {
stroke: #ddd;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.3.13/d3.min.js"></script>
Now coming back to your code, when you transform the data by using d3.layout.stack() there is no property called name in your new data (I suppose) and hence your ids are idundefined

Related

how to convert scatter chart into line chart in d3 version 3

I have implemented one scatter chart using d3.js. I want to convert this chart to line chart, but i am not able to do so. I have tried to follow ( http://embed.plnkr.co/wJDcZmkEzXaLVhuLZmcQ/ ) but it didn't helped me.
This is the code for scatter chart.
var data = [{"buildName":"otfa_R5-10_a1","build":"Build 1","value":"19628"},{"buildName":"otfa_R5-91_a1","build":"Build 2","value":"19628"},{"buildName":"otfa_R5-9_a1","build":"Build 3","value":"19628"}]
var yValues = [], responseData = [];
data.map(function(key) {
var test = [];
test[0] = key.build;
test[1] = key.value;
responseData.push(test);
yValues = key.value;
})
var margin = {
top: 20,
right: 15,
bottom: 60,
left: 60
},
width = 300 - margin.left - margin.right,
height = 200 - margin.top - margin.bottom;
var x = d3.scale.ordinal()
.domain(responseData.map(function(d) {
return d[0];
}))
.rangePoints([0, width], 0.5)
var y = d3.scale.linear()
.domain([5000,20000])
.range([height, 0]);
var chart = d3.select(divId)
.append('svg:svg')
.attr('width', width + margin.right + margin.left)
.attr('height', height + margin.top + margin.bottom)
.attr('class', 'chart')
var colors = d3.scale.linear()
.domain([5, 20])
.range(['#4577bc', '#4577bc'])
var main = chart.append('g')
.attr('transform', 'translate(' + margin.left + ',' + margin.top + ')')
.attr('width', width)
.attr('height', height)
.attr('class', 'main')
// draw the x axis
var xAxis = d3.svg.axis()
.scale(x)
.orient('bottom');
main.append('g')
.attr('transform', 'translate(0,' + height + ')')
.attr('class', 'main axis date')
.call(xAxis)
.selectAll("text")
.style("text-anchor", "end")
.attr("dx", "-.8em")
.attr("dy", ".15em")
.attr("transform", "rotate(-45)" );
// draw the y axis
var yAxis = d3.svg.axis()
.scale(y)
.orient('left');
main.append('g')
.attr('transform', 'translate(0,0)')
.attr('class', 'main axis date')
.call(yAxis);
var div = d3.select("body").append("div")
.attr("class", "tooltip")
.style("opacity", 0);
var g = main.append("svg:g");
g.selectAll("scatter-dots")
.data(responseData)
.enter().append("svg:circle")
.attr("cx", function(d, i) {
return x(d[0]);
})
.attr("cy", function(d) {
return y(d[1]);
})
.attr("r", 6)
.style('stroke', function(d, i) {
return colors(i);
})
.style('fill', function(d, i) {
return colors(i);
})
.on("mouseover", function(d) {
d3.select(this).attr("r", 10).style("fill", "#fff8ee");
div.transition()
.duration(200)
.style("opacity", 2.9);
div .html((d[1]))
.style("left", (d3.event.pageX) + "px")
.style("top", (d3.event.pageY - 18) + "px");
})
.on("mouseout", function(d) {
d3.select(this).attr("r", 5.5).style("fill", "#4577bc");
div.transition()
.duration(500)
.style("opacity", 0);
});
How we can add a line connecting these points ?
Please help me !!
To add a line to your existing chart, just add it using path generators.
Line generator:
var line = d3.svg.line()
.x(function (d) { return x(d[0]); })
.y(function (d) { return y(d[1]); });
Append the line to the svg:
g.append('path').classed('line', true)
.style( { fill: 'none', 'stroke': 'steelblue'} )
.attr('d', line(responseData));
Snippet with the above code included and a few CSS styles to make it look better:
var data = [{"buildName":"otfa_R5-10_a1","build":"Build 1","value":"19628"},{"buildName":"otfa_R5-91_a1","build":"Build 2","value":"10628"},{"buildName":"otfa_R5-9_a1","build":"Build 3","value":"17628"}]
var yValues = [], responseData = [];
data.map(function(key) {
var test = [];
test[0] = key.build;
test[1] = key.value;
responseData.push(test);
yValues = key.value;
})
var margin = {
top: 20,
right: 15,
bottom: 60,
left: 60
},
width = 300 - margin.left - margin.right,
height = 200 - margin.top - margin.bottom;
var x = d3.scale.ordinal()
.domain(responseData.map(function(d) {
return d[0];
}))
.rangePoints([0, width], 0.5)
var y = d3.scale.linear()
.domain([5000,20000])
.range([height, 0]);
var chart = d3.select('body')
.append('svg:svg')
.attr('width', width + margin.right + margin.left)
.attr('height', height + margin.top + margin.bottom)
.attr('class', 'chart')
var colors = d3.scale.linear()
.domain([5, 20])
.range(['#4577bc', '#4577bc'])
var main = chart.append('g')
.attr('transform', 'translate(' + margin.left + ',' + margin.top + ')')
.attr('width', width)
.attr('height', height)
.attr('class', 'main')
// draw the x axis
var xAxis = d3.svg.axis()
.scale(x)
.orient('bottom');
main.append('g')
.attr('transform', 'translate(0,' + height + ')')
.attr('class', 'main axis date')
.call(xAxis)
.selectAll("text")
.style("text-anchor", "end")
.attr("dx", "-.8em")
.attr("dy", ".15em")
.attr("transform", "rotate(-45)" );
// draw the y axis
var yAxis = d3.svg.axis()
.scale(y)
.orient('left');
main.append('g')
.attr('transform', 'translate(0,0)')
.attr('class', 'main axis date')
.call(yAxis);
var div = d3.select("body").append("div")
.attr("class", "tooltip")
.style("opacity", 0);
var g = main.append("svg:g");
g.selectAll("scatter-dots")
.data(responseData)
.enter().append("svg:circle")
.attr("cx", function(d, i) {
return x(d[0]);
})
.attr("cy", function(d) {
return y(d[1]);
})
.attr("r", 6)
.style('stroke', function(d, i) {
return colors(i);
})
.style('fill', function(d, i) {
return colors(i);
})
.on("mouseover", function(d) {
d3.select(this).attr("r", 10).style("fill", "#fff8ee");
div.transition()
.duration(200)
.style("opacity", 2.9);
div .html((d[1]))
.style("left", (d3.event.pageX+4) + "px")
.style("top", (d3.event.pageY - 28) + "px");
})
.on("mouseout", function(d) {
d3.select(this).attr("r", 5.5).style("fill", "#4577bc");
div.transition()
.duration(500)
.style("opacity", 0);
});
var line = d3.svg.line()
.x(function (d) { return x(d[0]); })
.y(function (d) { return y(d[1]); });
g.append('path').classed('line', true)
.style( { fill: 'none', 'stroke': 'steelblue'} )
.attr('d', line(responseData));
path.domain {
fill: none;
stroke: #000;
}
.axis text {
font-size: 12px;
}
div.tooltip {
position: absolute;
background: #FFF;
padding: 5px;
border: 1px solid #DDD;
pointer-events: none;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.4.0/d3.min.js"></script>

d3 horizontal bar chart with background and max value of 100%

I have this single horizontal bar chart and I want to make the following adjustments:
Show the tick value to the right of the bar chart, instead of by the axis.
Show a background for the bar chart scale instead of left and bottom axis.
Current version:
What I'd like to get to:
JS
var data = [
{"yAxis":"score", "xAxis":"72"}
];
// set the dimensions and margins of the graph
var margin = {top: 20, right: 20, bottom: 30, left: 80},
width = 960 - margin.left - margin.right,
height = 500 - margin.top - margin.bottom;
// set the ranges
var y = d3.scaleBand()
.range([height, 0])
.padding(0.4);
var x = d3.scaleLinear()
.range([0, width]);
var svg = d3.select(".barChartContainer").append("svg")
.attr("preserveAspectRatio", "xMinYMin meet")
.attr("viewBox", "0 0 960 500")
.append("g")
.attr("transform",
"translate(" + margin.left + "," + margin.top + ")");
// Scale the range of the data in the domains
x.domain([0, d3.max(data, function(d){ return d.xAxis; })])
y.domain(data.map(function(d) { return d.yAxis; }));
//y.domain([0, d3.max(data, function(d) { return d.prereqs; })]);
// append the rectangles for the bar chart
svg.selectAll(".bar")
.data(data)
.enter().append("rect")
.attr("class", "bar")
.attr("y", function(d) { return y(d.yAxis); })
.attr("height", y.bandwidth())
.transition()
.duration(1000)
.delay(function(d, i) {
return i * 100
})
.attr("width", function(d) {return x(d.xAxis); } );
// add the x Axis
svg.append("g")
.attr("transform", "translate(0," + height + ")")
.call(d3.axisBottom(x).tickValues(d3.range(x.domain()[0], x.domain()[1] + 1, 1))
.tickFormat(d3.format("d"))
);
svg.append("g")
.attr("class", "yAxis")
.call(d3.axisLeft(y));
I got this code from a codepen and I've been trying to adapt it, but it has been breaking so I stopped and was hoping you could help.
Thanks.
For showing the background for the bars, just copy your selection and chose a value of 100% for the rectangles, in a light gray fill:
var backgroundBar = svg.selectAll(null)
.data(data)
.enter()
.append("rect")
//etc...
.attr("width", function(d) {
return x(100);
});
Of course, you'll have to change the domain of the x scale:
var x = d3.scaleLinear()
.domain([0, 100]);
Then, drop both axis and print the labels using a text selection.
Finally, use another text selection for the values:
var values = svg.selectAll(null)
.data(data)
.enter()
.append("text")
//etc...
.text(function(d) {
return +d.xAxis
})
If you want, you can tween the text:
.attrTween("text", function(d) {
var self = this
var i = d3.interpolateNumber(0, +d.xAxis);
return function(t) {
return d3.select(self).text(~~i(t));
}
});
This is the result:
var data = [{
"yAxis": "score",
"xAxis": "72"
}];
var margin = {
top: 20,
right: 20,
bottom: 30,
left: 80
},
width = 500 - margin.left - margin.right,
height = 200 - margin.top - margin.bottom;
var y = d3.scaleBand()
.range([height, 0])
.padding(0.4);
var x = d3.scaleLinear()
.range([0, width])
.domain([0, 100]);
var svg = d3.select("body").append("svg")
.attr("width", 500)
.attr("height", 200)
.append("g")
.attr("transform",
"translate(" + margin.left + "," + margin.top + ")");
y.domain(data.map(function(d) {
return d.yAxis;
}));
var backgroundBar = svg.selectAll(null)
.data(data)
.enter()
.append("rect")
.attr("fill", "lightgray")
.attr("y", function(d) {
return y(d.yAxis);
})
.attr("height", y.bandwidth())
.attr("width", function(d) {
return x(100);
});
var bar = svg.selectAll(null)
.data(data)
.enter()
.append("rect")
.attr("class", "bar")
.attr("y", function(d) {
return y(d.yAxis);
})
.attr("height", y.bandwidth())
.transition()
.duration(2000)
.delay(function(d, i) {
return i * 100
})
.attr("width", function(d) {
return x(d.xAxis);
});
var labels = svg.selectAll(null)
.data(data)
.enter()
.append("text")
.attr("y", function(d) {
return y(d.yAxis) + y.bandwidth() / 2;
})
.attr("x", -10)
.attr("text-anchor", "end")
.text(function(d) {
return d.yAxis
});
var values = svg.selectAll(null)
.data(data)
.enter()
.append("text")
.attr("y", function(d) {
return y(d.yAxis) + y.bandwidth() / 2;
})
.attr("x", 10)
.text(function(d) {
return +d.xAxis
})
.transition()
.duration(2000)
.delay(function(d, i) {
return i * 100
})
.attr("x", function(d) {
return x(d.xAxis) + 10;
})
.attrTween("text", function(d) {
var self = this
var i = d3.interpolateNumber(0, +d.xAxis);
return function(t) {
return d3.select(self).text(~~i(t));
}
});
<script src="https://d3js.org/d3.v4.min.js"></script>

D3 Chart version 4 Normalized Stacked Bar Chart from vertical to horizontal

This question is pretty such similar to this D3JS question but I am using latest D3 version(//d3js.org/d3.v4.min.js).
I am trying make this Normalized Stacked Bar Chart
chart horizontal. Is there any optimized way in latest version to achieve this?
I have swapped the x axis and y axis as below
var svg = d3.select("svg"),
margin = {top: 20, right: 60, bottom: 30, left: 40},
width = +svg.attr("width") - margin.left - margin.right,
height = +svg.attr("height") - margin.top - margin.bottom,
g = svg.append("g").attr("transform", "translate(" + margin.left + "," + margin.top + ")");
var y = d3.scaleBand()
.rangeRound([0, width])
.padding(0.1)
.align(0.1);
var x = d3.scaleLinear()
.rangeRound([height, 0]);
var z = d3.scaleOrdinal()
.range(["#98abc5", "#8a89a6", "#7b6888", "#6b486b", "#a05d56", "#d0743c", "#ff8c00"]);
var stack = d3.stack()
.offset(d3.stackOffsetExpand);
d3.csv("data.csv", type, function(error, data) {
if (error) throw error;
data.sort(function(a, b) { return b[data.columns[1]] / b.total - a[data.columns[1]] / a.total; });
y.domain(data.map(function(d) { return d.State; }));
z.domain(data.columns.slice(1));
var serie = g.selectAll(".serie")
.data(stack.keys(data.columns.slice(1))(data))
.enter().append("g")
.attr("class", "serie")
.attr("fill", function(d) { return z(d.key); });
serie.selectAll("rect")
.data(function(d) { return d; })
.enter().append("rect")
.attr("y", function(d) { return y(d.data.State); })
.attr("x", function(d) { return x(d[1]); })
.attr("height", function(d) { return x(d[0]) - x(d[1]); })
.attr("width", y.bandwidth());
g.append("g")
.attr("class", "axis axis--y")
.attr("transform", "translate(0," + height + ")")
.call(d3.axisBottom(y));
g.append("g")
.attr("class", "axis axis--x")
.call(d3.axisLeft(x).ticks(10, "%"));
var legend = serie.append("g")
.attr("class", "legend")
.attr("transform", function(d) { var d = d[d.length - 1]; return "translate(" + (y(d.data.State) + y.bandwidth()) + "," + ((x(d[0]) + x(d[1])) / 2) + ")"; });
legend.append("line")
.attr("x1", -6)
.attr("x2", 6)
.attr("stroke", "#000");
legend.append("text")
.attr("y", 9)
.attr("dy", "0.35em")
.attr("fill", "#000")
.style("font", "10px sans-serif")
.text(function(d) { return d.key; });
});
function type(d, i, columns) {
for (i = 1, t = 0; i < columns.length; ++i) t += d[columns[i]] = +d[columns[i]];
d.total = t;
return d;
}
Referring the example
You will need to reverse the domains:
var y = d3.scaleBand()
.rangeRound([0, width])
.padding(0.1)
.align(0.1);
var x = d3.scaleLinear()
.rangeRound([height, 0]);
Swap the x to y as the domains are reverse so x will become y and y will become x, when you create the rectangles.
serie.selectAll("rect")
.data(function(d) {
return d;
})
.enter().append("rect")
.attr("y", function(d) {
return y(d.data.State);
})
.attr("x", function(d) {
return x(d[1]);
})
.attr("width", function(d) {
return x(d[0]) - x(d[1]);
})
.attr("height", y.bandwidth());
Change the legend position accordingly to position it on the top bar.
var legend = serie.append("g")
.attr("class", "legend")
.attr("transform", function(d) {
var d = d[0];//get the top data for placing legends on that.
return "translate(" + ((x(d[0]) + x(d[1])) / 2) + ", " +(y(d.data.State) - y.bandwidth())+ ")";
});
Finally position the legend lines:
legend.append("line")
.attr("y1", 5)
.attr("x1", 15)
.attr("x2", 15)
.attr("y2", 12)
.attr("stroke", "#000");
working code here
Below example also will help you
var initStackedBarChart = {
draw: function(config) {
me = this,
domEle = config.element,
stackKey = config.key,
data = config.data,
margin = {top: 20, right: 20, bottom: 30, left: 50},
parseDate = d3.timeParse("%m/%Y"),
width = 960 - margin.left - margin.right,
height = 500 - margin.top - margin.bottom,
xScale = d3.scaleLinear().rangeRound([0, width]),
yScale = d3.scaleBand().rangeRound([height, 0]).padding(0.1),
color = d3.scaleOrdinal(d3.schemeCategory20),
xAxis = d3.axisBottom(xScale),
yAxis = d3.axisLeft(yScale).tickFormat(d3.timeFormat("%b")),
svg = d3.select("#"+domEle).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 stack = d3.stack()
.keys(stackKey)
/*.order(d3.stackOrder)*/
.offset(d3.stackOffsetNone);
var layers= stack(data);
data.sort(function(a, b) { return b.total - a.total; });
yScale.domain(data.map(function(d) { return parseDate(d.date); }));
xScale.domain([0, d3.max(layers[layers.length - 1], function(d) { return d[0] + d[1]; }) ]).nice();
var layer = svg.selectAll(".layer")
.data(layers)
.enter().append("g")
.attr("class", "layer")
.style("fill", function(d, i) { return color(i); });
layer.selectAll("rect")
.data(function(d) { return d; })
.enter().append("rect")
.attr("y", function(d) { return yScale(parseDate(d.data.date)); })
.attr("x", function(d) { return xScale(d[0]); })
.attr("height", yScale.bandwidth())
.attr("width", function(d) { return xScale(d[1]) - xScale(d[0]) });
svg.append("g")
.attr("class", "axis axis--x")
.attr("transform", "translate(0," + (height+5) + ")")
.call(xAxis);
svg.append("g")
.attr("class", "axis axis--y")
.attr("transform", "translate(0,0)")
.call(yAxis);
}
}
var data = [{"date":"4/1854","total":8571,"disease":1,"wounds":0,"other":5},{"date":"5/1854","total":23333,"disease":12,"wounds":0,"other":9},{"date":"6/1854","total":28333,"disease":11,"wounds":0,"other":6},{"date":"7/1854","total":28772,"disease":359,"wounds":0,"other":23},{"date":"8/1854","total":30246,"disease":828,"wounds":1,"other":30},{"date":"9/1854","total":30290,"disease":788,"wounds":81,"other":70},{"date":"10/1854","total":30643,"disease":503,"wounds":132,"other":128},{"date":"11/1854","total":29736,"disease":844,"wounds":287,"other":106},{"date":"12/1854","total":32779,"disease":1725,"wounds":114,"other":131},{"date":"1/1855","total":32393,"disease":2761,"wounds":83,"other":324},{"date":"2/1855","total":30919,"disease":2120,"wounds":42,"other":361},{"date":"3/1855","total":30107,"disease":1205,"wounds":32,"other":172},{"date":"4/1855","total":32252,"disease":477,"wounds":48,"other":57},{"date":"5/1855","total":35473,"disease":508,"wounds":49,"other":37},{"date":"6/1855","total":38863,"disease":802,"wounds":209,"other":31},{"date":"7/1855","total":42647,"disease":382,"wounds":134,"other":33},{"date":"8/1855","total":44614,"disease":483,"wounds":164,"other":25},{"date":"9/1855","total":47751,"disease":189,"wounds":276,"other":20},{"date":"10/1855","total":46852,"disease":128,"wounds":53,"other":18},{"date":"11/1855","total":37853,"disease":178,"wounds":33,"other":32},{"date":"12/1855","total":43217,"disease":91,"wounds":18,"other":28},{"date":"1/1856","total":44212,"disease":42,"wounds":2,"other":48},{"date":"2/1856","total":43485,"disease":24,"wounds":0,"other":19},{"date":"3/1856","total":46140,"disease":15,"wounds":0,"other":35}];
var key = ["wounds", "other", "disease"];
initStackedBarChart.draw({
data: data,
key: key,
element: 'stacked-bar'
});
.axis text {
font: 10px sans-serif;
}
.axis line,
.axis path {
fill: none;
stroke: #000;
shape-rendering: crispEdges;
}
.path-line {
fill: none;
stroke: yellow;
stroke-width: 1.5px;
}
svg {
background: #f0f0f0;
}
<script src="https://d3js.org/d3.v4.min.js"></script>
<div id='stacked-bar'></div>

Making a grouped bar chart when my groups are varied sizes?

I am trying to make a bar chart out of some grouped data. This is dummy data, but the structure is basically the same. The data: election results includes a bunch of candidates, organized into the districts they were running in, and the total vote count:
district,candidate,votes
Dist 1,Leticia Putte,3580
Dist 2,David Barron,1620
Dist 2,John Higginson,339
Dist 2,Walter Bannister,2866
[...]
I'd like to create a bar or column chart (either, honestly, though my end goal is horizontal) that groups the candidates by district.
Mike Bostock has an excellent demo but I'm having trouble translating it intelligently for my purposes. I started to tease it out at https://jsfiddle.net/97ur6cwt/6/ but my data is organized somewhat differently -- instead of rows, by group, I have a column that sets the category. And there might be just one candidate or there might be a few candidates.
Can I group items if the groups aren't the same size?
My answer is similar to #GerardoFurtado but instead I use a d3.nest to build a domain per district. This removes the need for hardcoding values and cleans it up a bit:
y0.domain(data.map(function(d) { return d.district; }));
var districtD = d3.nest()
.key(function(d) { return d.district; })
.rollup(function(d){
return d3.scale.ordinal()
.domain(d.map(function(c){return c.candidate}))
.rangeRoundBands([0, y0.rangeBand()], pad);
}).map(data);
districtD becomes a map of domains for your y-axis which you use when placing the rects:
svg.selectAll("bar")
.data(data)
.enter().append("rect")
.style("fill", function(d,i) {
return color(d.district);
})
.attr("x", 0)
.attr("y", function(d) { return y0(d.district) + districtD[d.district](d.candidate); })
.attr("height", function(d){
return districtD[d.district].rangeBand();
})
.attr("width", function(d) {
return x(d.votes);
});
I'm off to a meeting but the next step is to clean up the axis and get the candidate names on there.
Full running code:
var url = "https://gist.githubusercontent.com/amandabee/edf73bc0bbe131435c952f5ed47524a6/raw/99febb9971f76e36af06f1b99913fcaa645ecb3e/election.csv"
var m = {top: 10, right: 10, bottom: 50, left: 110},
w = 800 - m.left - m.right,
h = 500 - m.top - m.bottom,
pad = .1;
var x = d3.scale.linear().range([0, w]);
y0 = d3.scale.ordinal().rangeRoundBands([0, h], pad);
var color = d3.scale.category20c();
var yAxis = d3.svg.axis()
.scale(y0)
.orient("left");
var xAxis = d3.svg.axis()
.scale(x)
.orient("bottom")
.ticks(5)
.tickFormat(d3.format("$,.0f"));
var svg = d3.select("#chart").append("svg")
.attr("width", w + m.right + m.left + 100)
.attr("height", h + m.top + m.bottom)
.append("g")
.attr("transform",
"translate(" + m.left + "," + m.top + ")");
// This moves the SVG over by m.left(110)
// and down by m.top (10)
d3.csv(url, function(error, data) {
data.forEach(function(d) {
d.votes = +d.votes;
});
y0.domain(data.map(function(d) { return d.district; }));
districtD = d3.nest()
.key(function(d) { return d.district; })
.rollup(function(d){
console.log(d);
return d3.scale.ordinal()
.domain(d.map(function(c){return c.candidate}))
.rangeRoundBands([0, y0.rangeBand()], pad);
})
.map(data);
x.domain([0, d3.max(data, function(d) {
return d.votes;
})]);
svg.append("g")
.attr("class", "x axis")
.attr("transform", "translate(0," + h + ")")
.call(xAxis)
.selectAll("text")
.style("text-anchor", "middle");
svg.append("g")
.attr("class", "y axis")
.call(yAxis)
.append("text");
svg.selectAll("bar")
.data(data)
.enter().append("rect")
.style("fill", function(d,i) {
return color(d.district);
})
.attr("x", 0)
.attr("y", function(d) { return y0(d.district) + districtD[d.district](d.candidate); })
.attr("height", function(d){
return districtD[d.district].rangeBand();
})
.attr("width", function(d) {
return x(d.votes);
});
svg.selectAll(".label")
.data(data)
.enter().append("text")
.text(function(d) {
return (d.votes);
})
.attr("text-anchor", "start")
.attr("x", function(d) { return x(d.votes)})
.attr("y", function(d) { return y0(d.district) + districtD[d.district](d.candidate) + districtD[d.district].rangeBand()/2;})
.attr("class", "axis");
});
.axis {
font: 10px sans-serif;
}
.axis path, .axis line {
fill: none;
stroke: black;
shape-rendering: crispEdges;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.4.11/d3.min.js"></script>
<div id="chart"></div>
An alternate version which sizes the bars the same and scales the outer domain appropriately:
<!DOCTYPE html>
<html>
<head>
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.4.11/d3.min.js"></script>
<style>
.label {
font: 10px sans-serif;
}
.axis {
font: 11px sans-serif;
font-weight: bold;
}
.axis path,
.axis line {
fill: none;
stroke: black;
shape-rendering: crispEdges;
}
</style>
</head>
<body>
<div id="chart"></div>
<script>
var url = "https://gist.githubusercontent.com/amandabee/edf73bc0bbe131435c952f5ed47524a6/raw/99febb9971f76e36af06f1b99913fcaa645ecb3e/election.csv"
var m = {
top: 10,
right: 10,
bottom: 50,
left: 110
},
w = 800 - m.left - m.right,
h = 500 - m.top - m.bottom,
pad = .1, padPixel = 5;
var x = d3.scale.linear().range([0, w]);
var y0 = d3.scale.ordinal();
var color = d3.scale.category20c();
var yAxis = d3.svg.axis()
.scale(y0)
.orient("left");
var xAxis = d3.svg.axis()
.scale(x)
.orient("bottom")
.ticks(5)
.tickFormat(d3.format("$,.0f"));
var svg = d3.select("#chart").append("svg")
.attr("width", w + m.right + m.left + 100)
.attr("height", h + m.top + m.bottom)
.append("g")
.attr("transform",
"translate(" + m.left + "," + m.top + ")");
// This moves the SVG over by m.left(110)
// and down by m.top (10)
d3.csv(url, function(error, data) {
data.forEach(function(d) {
d.votes = +d.votes;
});
var barHeight = h / data.length;
y0.domain(data.map(function(d) {
return d.district;
}));
var y0Range = [0];
districtD = d3.nest()
.key(function(d) {
return d.district;
})
.rollup(function(d) {
var barSpace = (barHeight * d.length);
y0Range.push(y0Range[y0Range.length - 1] + barSpace);
return d3.scale.ordinal()
.domain(d.map(function(c) {
return c.candidate
}))
.rangeRoundBands([0, barSpace], pad);
})
.map(data);
y0.range(y0Range);
x.domain([0, d3.max(data, function(d) {
return d.votes;
})]);
svg.append("g")
.attr("class", "x axis")
.attr("transform", "translate(0," + h + ")")
.call(xAxis)
.selectAll("text")
.style("text-anchor", "middle");
svg.append("g")
.attr("class", "y axis")
.call(yAxis)
.append("text");
svg.selectAll("bar")
.data(data)
.enter().append("rect")
.style("fill", function(d, i) {
return color(d.district);
})
.attr("x", 0)
.attr("y", function(d) {
return y0(d.district) + districtD[d.district](d.candidate);
})
.attr("height", function(d) {
return districtD[d.district].rangeBand();
})
.attr("width", function(d) {
return x(d.votes);
});
var ls = svg.selectAll(".labels")
.data(data)
.enter().append("g");
ls.append("text")
.text(function(d) {
return (d.votes);
})
.attr("text-anchor", "start")
.attr("x", function(d) {
return x(d.votes)
})
.attr("y", function(d) {
return y0(d.district) + districtD[d.district](d.candidate) + districtD[d.district].rangeBand() / 2;
})
.attr("class", "label");
ls.append("text")
.text(function(d) {
return (d.candidate);
})
.attr("text-anchor", "end")
.attr("x", -2)
.attr("y", function(d) {
return y0(d.district) + districtD[d.district](d.candidate) + districtD[d.district].rangeBand() / 2;
})
.style("alignment-baseline", "middle")
.attr("class", "label");
});
</script>
</body>
</html>
This is a partial solution: https://jsfiddle.net/hb13oe4v/
The main problem here is creating a scale for each group with a variable domain. Unlike Bostock's example, you don't have the same amount of bars(candidates) for each group(districts).
So, I had to do a workaround. First, I nested the data in the most trivial way:
var nested = d3.nest()
.key(function(d) { return d.district; })
.entries(data);
And then created the groups accordingly:
var district = svg.selectAll(".district")
.data(nested)
.enter()
.append("g")
.attr("transform", function(d) { return "translate(0," + y(d.key) + ")"; });
As I couldn't create an y1 (x1 in Bostock's example) scale, I had to hardcode the height of the bars (which is inherently bad). Also, for centring the bars in each group, I created this crazy math, that puts one bar in the center, the next under, the next above, the next under and so on:
.attr("y", function(d, i) {
if( i % 2 == 0){ return (y.rangeBand()/2 - 10) + (i/2 + 0.5) * 10}
else { return (y.rangeBand()/2 - 10) - (i/2) * 10}
})
Of course, all this can be avoided and coded way more elegantly if we could set a variable scale for each group.

d3 bar chart transition from csv

I'm a d3 novice trying to create a simple, two-series bar chart that transitions when different buttons are clicked. The original chart is constructed:
var margin = {top: 20, right: 20, bottom: 30, left: 40},
width = 960 - margin.left - margin.right,
height = 500 - margin.top - margin.bottom;
var x0 = d3.scale.ordinal()
.rangeRoundBands([0, width], .1);
var x1 = d3.scale.ordinal();
var y = d3.scale.linear()
.range([height, 0]);
var color = d3.scale.ordinal()
.range(["#d4d4d4", "#58bd5b",]);
var xAxis = d3.svg.axis()
.scale(x0)
.orient("bottom");
var yAxis = d3.svg.axis()
.scale(y)
.orient("left")
.tickFormat(d3.format(".2s"));
var svg = d3.select("div.d3space").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 + ")");
d3.csv("/assets/data/data3.csv", function(error, data) {
var hourBuckets = d3.keys(data[0]).filter(function(key) { return key !== "Client"; });
data.forEach(function(d) {
d.hours = hourBuckets.map(function(name) { return {name: name, value: +d[name]}; });
});
x0.domain(data.map(function(d) { return d.Client; }));
x1.domain(hourBuckets).rangeRoundBands([0, x0.rangeBand()]);
y.domain([0, d3.max(data, function(d) { return d3.max(d.hours, function(d) { return d.value; }); })]);
svg.append("g")
.attr("class", "x axis")
.attr("transform", "translate(0," + height + ")")
.call(xAxis);
svg.append("g")
.attr("class", "y axis")
.call(yAxis)
.append("text")
.attr("transform", "rotate(-90)")
.attr("y", 6)
.attr("dy", ".71em")
.style("text-anchor", "end")
.text("Hours");
var client = svg.selectAll(".client")
.data(data)
.enter().append("g")
.attr("class", "g")
.attr("transform", function(d) { return "translate(" + x0(d.Client) + ",0)"; });
client.selectAll("rect")
.data(function(d) { return d.hours; })
.enter().append("rect")
.attr("width", x1.rangeBand())
.attr("x", function(d) { return x1(d.name); })
.attr("y", function(d) { return y(d.value); })
.attr("height", function(d) { return height - y(d.value); })
.style("fill", function(d) { return color(d.name); });
var legend = svg.selectAll(".legend")
.data(hourBuckets.slice().reverse())
.enter().append("g")
.attr("class", "legend")
.attr("transform", function(d, i) { return "translate(0," + i * 20 + ")"; });
legend.append("rect")
.attr("x", width - 18)
.attr("width", 18)
.attr("height", 18)
.style("fill", color);
legend.append("text")
.attr("x", width - 24)
.attr("y", 9)
.attr("dy", ".35em")
.style("text-anchor", "end")
.text(function(d) { return d; });
});
The csv being accessed is in the following format:
Client,Planned,Actual
ICC,25,50
RNR,50,47.5
MB,10,2.5
This chart renders as desired. The piece I am struggling with is getting this graph to transition to reflect different data when a link is clicked (link has id="fourweeks"). I have tried this onclick function:
window.onload = function() {
var a = document.getElementById("fourweeks");
var b = document.getElementById("eightweeks");
var c = document.getElementById("twelveweeks");
a.onclick = function() {
d3.csv("/assets/data/data1.csv", function(error, data) {
var hourBuckets = d3.keys(data[0]).filter(function(key) { return key !== "Client"; });
data.forEach(function(d) {
d.hours = hourBuckets.map(function(name) { return {name: name, value: +d[name]}; });
});
var client = svg.selectAll(".client")
client.selectAll("rect")
.data(function(d) { return d.hours; })
.transition()
.duration(1000)
.attr("y", function(d) { return y(d.value); })
.attr("height", function(d) { return height - y(d.value); })
});
}
}
...no dice. I can get this to work when creating / transitioning simple one-series bar charts that use list inputs, but not the multi-series csv ones. data2.csv is the exact same file as data1.csv, with the values adjusted slightly.
Thanks for your time reading - any advice?
First svg.selectAll(".client") returns an empty selection, because you gave these elements the class 'g' instead of 'client'.
Secondly you need to update the data of the .client-elements:
var client = svg.selectAll(".client")
.data(data);
btw. you should use selection.classed() instead of selection.attr('class')

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