Align table columns under d3 chart columns - javascript

I have a basic column chart in d3.js. I've been tasked with displaying additional data for each column underneath the chart in a table.
How can I align the table columns under their respective chart columns?
The table is raw HTML here for simplicity. I could generate the table using d3 if that would be helpful for this question.
Here's the fiddle: http://jsfiddle.net/pqRX8/1/
Or use this file:
<!DOCTYPE html>
<meta charset="utf-8">
<style>
.bar {
fill: steelblue;
}
.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>
<body>
<script src="http://d3js.org/d3.v3.min.js"></script>
<script>
var margin = {top: 20, right: 20, bottom: 30, left: 40},
width = 960 - margin.left - margin.right,
height = 500 - margin.top - margin.bottom;
var x = d3.scale.ordinal()
.rangeRoundBands([0, width], .1);
var y = d3.scale.linear()
.range([height, 0]);
var xAxis = d3.svg.axis()
.scale(x)
.orient("bottom");
var yAxis = d3.svg.axis()
.scale(y)
.orient("left")
.ticks(10, "%");
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 data = [
{'letter': 'A', 'frequency': '.08167'},
{'letter': 'B', 'frequency': '.01492'},
{'letter': 'C', 'frequency': '.02782'},
{'letter': 'D', 'frequency': '.04253'},
];
x.domain(data.map(function(d) { return d.letter; }));
y.domain([0, d3.max(data, function(d) { return d.frequency; })]);
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("Frequency");
svg.selectAll(".bar")
.data(data)
.enter().append("rect")
.attr("class", "bar")
.attr("x", function(d) { return x(d.letter); })
.attr("width", x.rangeBand())
.attr("y", function(d) { return y(d.frequency); })
.attr("height", function(d) { return height - y(d.frequency); });
function type(d) {
d.frequency = +d.frequency;
return d;
}
</script>
<table>
<tr><td>Phonetic</td><td>alpha</td><td>bravo</td><td>charlie</td><td>delta</td></tr>
<tr><td>Pronunciation</td><td>AL-FAH</td><td>BRAH-VOH</td><td>CHAR-LEE</td><td>DELL-TAH</td></tr>
</table>

Use the same x.rangeBand() for widths of your table columns as you do for the widths of your bars. Don't forget to add a horizontal padding of 5% (10% total) of it to compensate for .rangeRoundBands([0, width], .1);

Related

d3 javascript change range of the y axis

I'm a beginner with d3 javascript and I don't know how to change the y axis on this grouped bar chart:
http://bl.ocks.org/mbostock/3887051 Data + code can be found here
This is the code of the site & the data of the grouped bar chart:
body {
font: 10px sans-serif;
}
.axis path,
.axis line {
fill: none;
stroke: #000;
shape-rendering: crispEdges;
}
.bar {
fill: steelblue;
}
.x.axis path {
display: none;
}
</style>
<body>
<script src="http://d3js.org/d3.v3.min.js"></script>
<script>
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(["#98abc5", "#8a89a6", "#7b6888", "#6b486b", "#a05d56", "#d0743c", "#ff8c00"]);
var xAxis = d3.svg.axis()
.scale(x0)
.orient("bottom");
var yAxis = d3.svg.axis() //creating a generic axis function//
.scale(y)
.orient("left")
.tickFormat(d3.format(".2s"));
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 + ")");
d3.csv("gender_ratio.csv", function(error, data) {
var ageNames = d3.keys(data[0]).filter(function(key) { return key !== "Perioden"; });
data.forEach(function(d) {
d.ages = ageNames.map(function(name) { return {name: name, value: +d[name]*1000}; });
});
x0.domain(data.map(function(d) { return d.Perioden; }));
x1.domain(ageNames).rangeRoundBands([0, x0.rangeBand()]);
y.domain([0, d3.max(data, function(d) { return d3.max(d.ages, 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("Population");
var Perioden = svg.selectAll(".Perioden")
.data(data)
.enter().append("g")
.attr("class", "g")
.attr("transform", function(d) { return "translate(" + x0(d.Perioden) + ",0)"; });
Perioden.selectAll("rect")
.data(function(d) { return d.ages; })
.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(ageNames.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; });
});
</script>
Data:
State,Under 5 Years,5 to 13 Years,14 to 17 Years,18 to 24 Years,25 to 44 Years,45 to 64 Years,65 Years and Over
CA,2704659,4499890,2159981,3853788,10604510,8819342,4114496
TX,2027307,3277946,1420518,2454721,7017731,5656528,2472223
NY,1208495,2141490,1058031,1999120,5355235,5120254,2607672
FL,1140516,1938695,925060,1607297,4782119,4746856,3187797
IL,894368,1558919,725973,1311479,3596343,3239173,1575308
PA,737462,1345341,679201,1203944,3157759,3414001,1910571
If your x-axis is regular old numeric data, you should be using a linear scale not an ordinal. Ordinal is meant for discrete values (think a, b, c or x, y, z or tom, dick, harry) while linear is meant for continuous data (think 1,2,3 or 50, 100, 150):
var x = d3.scale.linear()
.range([0, width])
.domain([1650, 1700]);
In d3 speak, range is the pixel span of your data (from min to max), while domain is the user-space span of your data (the min and max of your data values). The scale that's returned then maps your user space data to it's pixel space position.
Below is a heavily commented example of a simple d3 bar graph:
<!DOCTYPE html>
<meta charset="utf-8">
<style>
body {
font: 10px sans-serif;
}
.axis path,
.axis line {
fill: none;
stroke: #000;
shape-rendering: crispEdges;
}
.bar {
fill: steelblue;
}
.x.axis path {
display: none;
}
</style>
<body>
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js"></script>
<script>
// sample data with x and y values
// d3 likes arrays of objects
var data = [
{
x: 1660,
y: 1
},{
x: 1670,
y: 2
},{
x: 1680,
y: 3
},{
x: 1690,
y: 4
}
];
var margin = {top: 20, right: 20, bottom: 30, left: 40},
width = 960 - margin.left - margin.right,
height = 500 - margin.top - margin.bottom;
var x = d3.scale.linear()
.range([0,width]) // our pixel span
.domain([1650, 1700]); // our user space data span
var y = d3.scale.linear()
.range([height, 0]) // same thing as x, pixel span
.domain([0,5]); // user space space
// marry the scale to the axis
var xAxis = d3.svg.axis()
.scale(x)
.orient("bottom");
var yAxis = d3.svg.axis()
.scale(y)
.orient("left");
// set up our svg tag
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 + ")");
// draw x axis
svg.append("g")
.attr("class", "x axis")
.attr("transform", "translate(0," + height + ")")
.call(xAxis);
// draw y axis
svg.append("g")
.attr("class", "y axis")
.call(yAxis);
// get a nice bar width
// it is the width of our axis divided by the number of ticks
var barWidth = (width / xAxis.ticks()[0]);
// draw the bars
var state = svg.selectAll(".bar")
.data(data)
.enter().append("rect")
.attr("class","bar")
.attr("width", barWidth)
.attr("x", function(d) { return x(d.x) - (barWidth / 2); }) // center it on tick
.attr("y", function(d) { return y(d.y); }) // y is the top of the bar
.attr("height", function(d) { return height - y(d.y); }); // and height goes to axis
</script>
</body>
</html>

Filtering out weekend days from time series line chart in D3.js

I have multi-year, daily dataset that looks like this:
date close
2013-09-17 178
2013-09-16 185
2013-09-15 20
2013-09-14 10
2013-09-13 190
2013-09-12 157
2013-09-11 150
2013-09-10 189
2013-09-09 183
2013-09-08 11
2013-09-07 20
I generated a line chart using this example, but would like filter out weekend days:
<!DOCTYPE html>
<meta charset="utf-8">
<style>
body {
font: 10px sans-serif;
}
.axis path,
.axis line {
fill: none;
stroke: #000;
shape-rendering: crispEdges;
}
.x.axis path {
display: none;
}
.line {
fill: none;
stroke: steelblue;
stroke-width: 1.5px;
}
</style>
<body>
<script src="http://d3js.org/d3.v3.js"></script>
<script>
var margin = {top: 20, right: 20, bottom: 30, left: 50},
width = 960 - margin.left - margin.right,
height = 500 - margin.top - margin.bottom;
var parseDate = d3.time.format("%Y-%m-%d").parse;
var x = d3.time.scale()
.range([0, width]);
var y = d3.scale.linear()
.range([height, 0]);
var xAxis = d3.svg.axis()
.scale(x)
.orient("bottom");
var yAxis = d3.svg.axis()
.scale(y)
.orient("left");
var line = d3.svg.line()
.x(function(d) { return x(d.date); })
.y(function(d) { return y(d.close); });
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 + ")");
d3.csv("data.csv", function(error, data) {
data.forEach(function(d) {
d.date = parseDate(d.date);
d.close = +d.close;
});
x.domain(d3.extent(data, function(d) { return d.date; }));
y.domain(d3.extent(data, function(d) { return d.close; }));
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("Price ($)");
svg.append("path")
.datum(data)
.attr("class", "line")
.attr("d", line);
});
</script>
This example from Crossfilter.js seems to achieve weekend filtering—but only for a small portion of the dataset. Ideally, I would be able to filter by day using checkboxes (e.g. weekdays or Mondays only) across the entire dataset.

Setting X-axis label in d3.js

In my d3.js bar chart i want the X-axis labels to be in "vertical". I'm getting the labels in "Horizontal" but the problem is some of the labels getting merged.
<!DOCTYPE html>
<style>
body {
font: 10px sans-serif;
}
.axis path,
.axis line {
fill: none;
stroke: #000;
shape-rendering: crispEdges;
}
.bar {
fill: red;
}
.x.axis path {
display: none;
}
</style>
<body>
<script src="http://d3js.org/d3.v3.min.js"></script>
<script>
var margin = {top: 20, right: 20, bottom: 30, left: 40},
width = 960 - margin.left - margin.right,
height = 500 - margin.top - margin.bottom;
var x = d3.scale.ordinal()
.rangeRoundBands([0, width], .1);
var y = d3.scale.linear()
.range([height, 0]);
var xAxis = d3.svg.axis()
.scale(x)
.orient("bottom");
var yAxis = d3.svg.axis()
.scale(y)
.orient("left");
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 + ")");
d3.csv("ClassRoom.csv",type,function(error,data){
x.domain(data.map(function(d) { return d.Name; }));
y.domain([0, d3.max(data, function(d) { return d.Marks; })]);
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("Marks");
svg.selectAll(".bar")
.data(data)
.enter().append("rect")
.attr("class", "bar")
.attr("x", function(d) { return x(d.Name); })
.attr("width", x.rangeBand())
.attr("y", function(d) { return y(d.Marks); })
.attr("height", function(d) { return height - y(d.Marks)});
});
function type(d) {
d.Marks = +d.Marks;
return d;
}
</script>
My CSV file is
Name,Marks
Sathesh,15
Somnath,45
Naresh,35
Venkat,25
Prabha,78
Dinesh,36
You will have to do that with the SVG-Text Labels. Assuming you create the X-Axis in this fashion:
var xAxis = svg.append("g")
.attr({
"class": "x axis",
transform: "translate(0," + h + ")"
})
.call(xAxis);
You select the Text, and apply a transformation:
xAxis.selectAll("text")
.attr({
transform: function (d) {
return "rotate(-60, 0, 0)";
}
});
You will have to adjust the 0,0 in the rotate transformation to suit your needs. Also i recommend looking into the text-anchor attribute. But this should get you started!

d3.js line graph axis not displaying data correctly

I can't figure out why the data won't display correctly. I think it has something to do with the scale of the axis but I can't find any solutions. There is a line being drawn but it's to small to see. The example I was using had a time scale of several years where as I am only doing one week.
Below is the code.
<!DOCTYPE html>
<meta charset="utf-8">
<style>
body {
font: 10px sans-serif;
}
.axis path,
.axis line {
fill: none;
stroke: #000;
shape-rendering: crispEdges;
}
.x.axis path {
display: none;
}
.line {
fill: none;
stroke: steelblue;
stroke-width: 1.5px;
}
</style>
</head>
<body>
<script src="http://d3js.org/d3.v3.js" charset="utf-8"></script>
<script>
var margin = {top: 20, right: 20, bottom: 30, left: 50},
width = 960 - margin.left - margin.right,
height = 500 - margin.top - margin.bottom;
var parseDate = d3.time.format("%d-%b-%y").parse;
var x = d3.time.scale()
.range([0, width]);
var y = d3.scale.linear()
.range([height, 0]);
var xAxis = d3.svg.axis()
.scale(x)
.orient("bottom");
var yAxis = d3.svg.axis()
.scale(y)
.orient("left");
var line = d3.svg.line()
.x(function(d) { return x(d.date); })
.y(function(d) { return y(d.close); });
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 data = [{"close":71,"date":"9-Apr-13"},{"close":14,"date":"9-Apr-13"},{"close":10,"date":"9-Apr-13"},{"close":109,"date":"9-Apr-13"},{"close":62,"date":"9-Apr-13"},{"close":61,"date":"9-Apr-13"},{"close":62,"date":"9-Apr-13"},{"close":32,"date":"9-Apr-13"},{"close":19,"date":"9-Apr-13"}];
data.forEach(function(d) {
d.date = parseDate(d.date);
d.close = +d.close;
});
x.domain(d3.extent(data, function(d) { return d.date; }));
y.domain(d3.extent(data, function(d) { return d.close; }));
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("Price ($)");
svg.append("path")
.datum(data)
.attr("class", "line")
.attr("d", line);
</script>
</body>
</html>
Based on the data you've provided, there is only one instance of time: Apr 9, 2013. Since there is no difference between min and max, the x axis won't display.
If you change one date to Apr 11, It looks right.
Bear in mind that your css says
.x.axis path {
display: none;
}
so the actual line for the x axis won't display no matter what

I'm working on d3.js. Why this code doesn't work correctly?

That's the CSV file: http://goo.gl/ZVVjD
I've this problem only for bar chart. The line chart works fine. I don't know how to modify this one.
Please,help me to understand where I'm wrong.
<!DOCTYPE html>
<meta charset="utf-8">
<style>
body {
font: 10px sans-serif;
}
.axis path,
.axis line {
fill: none;
stroke: #000;
shape-rendering: crispEdges;
}
.bar {
fill: steelblue;
}
.x.axis path {
display: none;
}
</style>
<body>
<script src="http://d3js.org/d3.v3.min.js"></script>
<script>
var margin = {top: 20, right: 20, bottom: 30, left: 40},
width = 960 - margin.left - margin.right,
height = 500 - margin.top - margin.bottom;
//var formatPercent = d3.format("04d");
//var formatPercent = d3.format(".0%");
var parseDate = d3.time.format("%d-%b-%y-%H:%M:%S").parse;
var x = d3.time.scale()
.range([0, width]);
var y = d3.scale.linear()
.range([height, 0]);
var xAxis = d3.svg.axis()
.scale(x)
.orient("bottom");
var yAxis = d3.svg.axis()
.scale(y)
.orient("left")
//.tickFormat(formatPercent);
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 + ")");
d3.csv("data.tsv", function(error, data) {
data.forEach(function(d) {
d.date = parseDate(d.date);
//d.energy = parseInt(d.energy);
d.energy = +d.energy;
});
x.domain(d3.extent(data, function(d) { return d.date; }));
y.domain([0, d3.max(data, function(d) { return d.energy; })]);
//y.domain(d3.extent(data, function(d) { return d.energy; }));
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("Energy");
svg.selectAll(".bar")
.data(data)
.enter().append("rect")
.attr("class", "bar")
.attr("x", function(d) { return x(d.date); })
.attr("width", x.rangeBand())
.attr("y", function(d) { return y(d.energy); })
.attr("height", function(d) { return height - y(d.energy); });
});
</script>
Thank you very much!
I don't believe x.rangeBand() works for time scales. Try replacing it with with a fixed pixel value of 2 or 3.

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