Develop Reference

I had some simple problems in D3.JS

https://i.stack.imgur.com/90isf.png
When visualizing the data, I got some troubles of X axis of line chart.
As picture shows, line of X axis disappeared, in fact, it only shows the scale of X axis. I wonder why this condition happens. Was it due to the illegal coding or because of the size of SVG was not big enough to contain the whole picture?
var margin = { top: 30, right: 120, bottom: 30, left: 50 },
width = 960 - margin.left - margin.right,
height = 600 - margin.top - margin.bottom,
tooltip = { width: 100, height: 100, x: 10, y: -30 };
var parseDate = d3.timeParse("%m-%d-%Y"),
bisectDate = d3.bisector(function(d) { return d.date; }).left,
formatValue = d3.format(","),
dateFormatter = d3.timeParse("%m-%d-%Y");
var x = d3.scaleTime()
.range([0, width]);
var y = d3.scaleLinear()
.range([height, 0]);
var xAxis = d3.axisBottom()
var yAxis = d3.axisLeft()
.scale(y);
var line = d3.line()
.x(function(d) { return x(d.date); })
.y(function(d) { return y(d.likes); });
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("output4.csv",
function(d){
return { date : d.framenum, likes : d.nSNR }
},
function(data) {
x.domain([0, d3.max(data, function(d) { return +d.date; })]);
y.domain([-d3.max(data, function(d) { return +d.likes; }), d3.max(data, function(d) { return +d.likes; })]);
svg.append("g")
.attr("class", "x axis")
.attr("transform", "translate(0," + height + ")")
.call(d3.axisBottom(x));
svg.append("g")
.attr("class", "y axis")
.call(yAxis)
.style("font-size","17px")
.append("text")
.attr("transform", "rotate(-90)")
.attr("y", 6)
.attr("dy", ".71em")
.style("text-anchor", "end")
.text("Number of Likes");
svg.append("path")
.datum(data)
.attr("class", "line")
.attr("d", line);
var focus = svg.append("g")
.attr("class", "focus")
.style("display", "none");
focus.append("circle")
.attr("r", 5);
focus.append("rect")
.attr("class", "tooltip")
.attr("width", 100)
.attr("height", 50)
.attr("x", 10)
.attr("y", -22)
.attr("rx", 4)
.attr("ry", 4);
focus.append("text")
.attr("class", "tooltip-date")
.attr("x", 18)
.attr("y", -2);
focus.append("text")
.attr("x", 18)
.attr("y", 18)
.text("Likes:");
focus.append("text")
.attr("class", "tooltip-likes")
.attr("x", 60)
.attr("y", 18);
svg.append("rect")
.attr("class", "overlay")
.attr("width", width)
.attr("height", height)
.on("mouseover", function() { focus.style("display", null); })
.on("mouseout", function() { focus.style("display", "none"); })
.on("mousemove", mousemove);
function mousemove() {
var x0 = x.invert(d3.mouse(this)[0]),
i = bisectDate(data, x0, 1),
d0 = data[i - 1],
d1 = data[i],
d = x0 - d0.date > d1.date - x0 ? d1 : d0;
focus.attr("transform", "translate(" + x(d.date) + "," + y(d.likes) + ")");
focus.select(".tooltip-date").text(dateFormatter(d.date));
focus.select(".tooltip-likes").text(formatValue(d.likes));
}
});

Problems with grouped bar chart

I am new to d3 and trying to make a grouped bar chart following this and this websites.
The following is my code for the scales
x0 = d3.scaleTime()
.domain([
d3.min(dataset, function(d) {return d.date;}),
d3.max(dataset, function(d) {return d.date;})
])
.range([0,w]);
x1 = d3.scaleOrdinal()
.domain([dataset.WorldPopulation, dataset.InternetUser]);
// .rangeRound([0, x0.bandwidth()]);
y = d3.scaleLinear()
.domain([0, d3.max(dataset, function(d) {return d.WorldPopulation})])
.range([h,0]);
In the website above they use scaleOrdinal but I used scaleTime as x0. Therefore I'm not too sure if that works.
This is my code for the append(rect) for the bar chart
var date = svg.selectAll(".date")
.data(dataset)
.enter()
.append("g")
.attr("class", "g")
.attr("transform", function(d) {return "translate(" + x0(d.date) + ",0)";});
/* Add field1 bars */
date.selectAll(".bar.field1")
.data(d => [d])
.enter()
.append("rect")
.attr("class", "bar field1")
.style("fill","blue")
.attr("x", d => x0(d.WorldPopulation))
.attr("y", d => y(d.WorldPopulation))
.attr("width", x1.bandwidth())
.attr("height", d => {
return height - margin.top - margin.bottom - y(d.WorldPopulation)
});
/* Add field2 bars */
date.selectAll(".bar.field2")
.data(d => [d])
.enter()
.append("rect")
.attr("class", "bar field2")
.style("fill","red")
.attr("x", d => x0(d.InternetUser))
.attr("y", d => y(d.InternetUser))
.attr("width", x1.bandwidth())
.attr("height", d => {
return height - margin.top - margin.bottom - y(d.InternetUser)
});
And this is my csv file. Not too sure how to upload excel so I took a screenshot.
Any help provided will be appreciated. Feel free to request for any extra snippets of my code for clarification.
edit: After tweaking the code, no errors are shown but the svg is not produced either.

Using scaleBand for both x0 and x1, the following code works:
<script src="js/d3.v4.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.scaleBand()
.rangeRound([0, width]).padding(.1);
var x1 = d3.scaleBand();
var y = d3.scaleLinear()
.range([height, 0]);
var xAxis = d3.axisBottom()
.scale(x0)
.tickSize(0);
var yAxis = d3.axisLeft()
.scale(y);
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("InternetUserStats.csv", function (error, data) {
var dates = data.map(function (d) { return d.date; });
var ymax = d3.max(data, function (d) { return Math.max(d.WorldPopulation, d.InternetUser); });
x0.domain(dates);
x1.domain(['WorldPopulations', 'InternetUsers']).rangeRound([0, x0.bandwidth()]);
y.domain([0, ymax]);
svg.append("g")
.attr("class", "x axis")
.attr("transform", "translate(0," + height + ")")
.call(xAxis);
svg.append("g")
.attr("class", "y axis")
.call(yAxis);
var date = svg.selectAll(".g")
.data(data)
.enter().append("g")
.attr("class", "g")
.attr("transform", function (d) { return "translate(" + x0(d.date) + ",0)"; });
/* Add field1 bars */
date/*.selectAll(".bar.field1")
.data(data)
.enter()*/
.append("rect")
.attr("class", "bar field1")
.style("fill", "blue")
.attr("x", function (d) { return x1('WorldPopulations'); })
.attr("y", function (d) { return y(+d.WorldPopulation); })
.attr("width", x0.bandwidth() / 2)
.attr("height", function (d) {
return height /*- margin.top - margin.bottom*/ - y(d.WorldPopulation)
});
/* Add field2 bars */
date/*.selectAll(".bar.field1")
.data(data)
.enter()*/
.append("rect")
.attr("class", "bar field2")
.style("fill", "red")
.attr("x", function (d) { return x1('InternetUsers'); })
.attr("y", function (d) { return y(d.InternetUser); })
.attr("width", x0.bandwidth() / 2)
.attr("height", function (d) {
return height /*- margin.top - margin.bottom*/ - y(d.InternetUser)
});
});
</script>
EDIT: the following code adds a legend that is based on your comment and your second link:
//This code goes after field2 bars are added.
/* Legend */
var legend = svg.selectAll(".legend")
.data(['WorldPopulations', 'InternetUsers']) //Bind an array of the legend entries
.enter().append("g")
.attr("class", "legend")
.attr("font-family", "sans-serif")
.attr("font-size", 13)
.style("text-anchor", "end")
.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", function (d) {
// Return "blue" for "WorldPopulations" and "red" for "InternetUsers":
return ((d === "WorldPopulations") ? "blue" : "red");
});
legend.append("text")
.attr("x", width - 24)
.attr("y", 9)
.attr("dy", ".35em")
//.style("text-anchor", "end") //Already applied to .legend
.text(function (d) { return d; });

how to set color gradient in barchart using d3.js?

i have following code
d3.csv("data.csv", function(error, data) {
data.forEach(function(d) {
d.value = +d.value;
});
var margin = {top: 20, right: 20, bottom: 70, left: 40},
width = 600 - margin.left - margin.right,
height = 400 - margin.top - margin.bottom;
var x = d3.scale.ordinal().rangeRoundBands([0, width], .05);
var y = d3.scale.linear().range([height, 0]);
var y1 = 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("#bar").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 yAxisRight = d3.svg.axis().scale(y1)
.orient("left");
var line = d3.svg.line()
.interpolate("basis")
.x(function(d) { return x(d.date); })
.y(function(d) { return y1(d.avg_return); });
x.domain(data.map(function(d) { return d.date; }));
y.domain([0, d3.max(data, function(d) { return d.value; })]);
y1.domain([0, d3.max(data, function(d) {
return d.avg_return; })]);
/*for x axis*/
svg.append("g")
.attr("class", "x axis")
.attr("transform", "translate(0," + height + ")")
.call(xAxis)
.selectAll("text")
.style("text-anchor", "end")
.attr("dx", "-.8em")
.attr("dy", "-.55em")
.attr("transform", "rotate(-90)" );
/*for y axis*/
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("Value ($)");
svg.selectAll("bar")
.data(data)
.enter().append("rect")
.style("fill",function(d) { if (d.value >= 400) {return "green"} else if (d.value<=300) { return "red" } else { return 'yellow'} })
.attr("x", function(d) { return x(d.date); })
.attr("width", x.rangeBand())
.attr("y", function(d) { return y(d.value); })
.attr("height", function(d) { return height - y(d.value); });
svg.append('path')
.datum(data)
.attr('class', 'sparkline')
.attr('d', line);
svg.append('circle')
.attr('class', 'sparkcircle')
.attr('cx', x(data[0].date))
.attr('cy', y1(data[0].avg_return))
.attr('r', 2.5);
svg.append("g")
.attr("class", "y axis")
.attr("transform", "translate(" + width + " ,0)")
.style("fill", "red")
.call(yAxisRight);
});
my csv file contains following data
date,value,avg_return
a,530,70
b,490,91
c,450,92
d,400,78
e,370,50
f,340,56
D,300,32
h,250,96
a9,200,73
i have use color gradient for this colors(#D73027,#FFFFBF,#1A9850).
how to use color gradient in bar chart..i have to sett colors based on the (value column)

From here : How to customize the color scale in a D3 line chart?
I have created your custom color scale :
var color = d3.scale.ordinal()
.range(["#D73027", "#FFFFBF" , "#1A9850"]);
And edited how you fill your bars :
.style("fill", function(d,i){
return color(i); //pass i to scale
})
Notice I pass i to the color scale. If there aren't enough colors in the scale it will wrap round and start again.
Working fiddle : https://jsfiddle.net/thatOneGuy/snjb4q92/2/
Edit
You say you want 'boundaries'. So what I have done, if its between 0 and 300, take first color, 300 and 400 takes second and 400 and 600 takes third.
Logic :
.style("fill", function(d, i) {
if (d.value >= 0 && d.value < 300) {
return color(0);
} else if (d.value >= 300 && d.value < 400) {
return color(1);
} else if (d.value >= 400 && d.value < 600) {
return color(2);
}
})
Updated fiddle : https://jsfiddle.net/thatOneGuy/snjb4q92/6/

vertical stacked bar chart using D3.js from Json

i want a vertical stacked bar chart with x axis and y axis labels and tool tip showing values and legends. please show me how to reduce the size of the graph also....
Now bar stacked bar chart is showing with very big size But no x and y axis... amd tool tip and legends is also not coming...
var w = 700,
h = 500;
var margin = {top: 25, right: 75, bottom: 85, left: 85};
// create canvas
var svg = d3.select("#bar-chart").append("svg:svg")
.attr("class", "chart")
.attr("width", w)
.attr("height", h )
.append("svg:g")
.attr("transform", "translate(10,470)");
x = d3.scale.ordinal().rangeRoundBands([0, w-50]);
y = d3.scale.linear().range([0, h-50]);
z = d3.scale.ordinal().range(["yellow", "grey", "orange"]);
var colors = [["Cat 980", "#D0D0D0"],
["Kom500", "#4DAF4A"],
["Kom501", "#D0D0D0"],
["Kom502", "#D0D0D0"]];
console.log("RAW MATRIX---------------------------");
// 4 columns: ID,c1,c2,c3
var matrix = [
[ 1, 5871, 8916, 2868],
[ 2, 10048, 2060, 6171],
[ 3, 16145, 8090, 8045],
[ 4, 990, 940, 6907]
];
console.log(matrix);
console.log("REMAP---------------------------");
var remapped =["c1","c2","c3"].map(function(dat,i){
return matrix.map(function(d,ii){
return {x: ii, y: d[i+1] };
});
});
console.log(remapped);
console.log("LAYOUT---------------------------");
var stacked = d3.layout.stack()(remapped);
console.log(stacked);
var xScale = d3.scale.ordinal().domain(d3.range(stacked.length)).rangeRoundBands([0, w], 0.05);
// ternary operator to determine if global or local has a larger scale
var yScale = d3.scale.linear().domain([0, d3.max(remapped)]).range([h, 0]);
var xAxis = d3.svg.axis().scale(xScale).tickFormat(function(d) { return stacked[d].keyword; }).orient("bottom");
var yAxis = d3.svg.axis().scale(yScale).orient("left").ticks(5);
x.domain(stacked[0].map(function(d) { return d.x; }));
y.domain([0, d3.max(stacked[stacked.length - 1], function(d) { return d.y0 + d.y; })]);
// show the domains of the scales
console.log("x.domain(): " + x.domain())
console.log("y.domain(): " + y.domain())
console.log("------------------------------------------------------------------");
// Add a group for each column.
var valgroup = svg.selectAll("g.valgroup")
.data(stacked)
.enter().append("svg:g")
.attr("class", "valgroup")
.style("fill", function(d, i) { return z(i); })
.style("stroke", function(d, i) { return d3.rgb(z(i)).darker(); });
// xAxis
svg.append("g") // Add the X Axis
.attr("class", "x axis")
.attr("transform", "translate(0," + (h) + ")")
.call(xAxis)
.selectAll("text")
.style("text-anchor", "end")
.attr("dx", "-.8em")
.attr("dy", ".15em")
.attr("transform", function(d) {
return "rotate(-25)";
})
;
// yAxis
svg.append("g")
.attr("class", "y axis")
.attr("transform", "translate(0 ,0)")
.call(yAxis)
;
// xAxis label
svg.append("text")
.attr("transform", "translate(" + (w / 2) + " ," + (h + margin.bottom - 5) +")")
.style("text-anchor", "middle")
.text("Keyword");
//yAxis label
svg.append("text")
.attr("transform", "rotate(-90)")
.attr("y", 0 - margin.left)
.attr("x", 0 - (h / 2))
.attr("dy", "1em")
.style("text-anchor", "middle")
.text("Product");
// Add a rect for each date.
var rect = valgroup.selectAll("rect")
.data(function(d){return d;})
.enter().append("svg:rect")
.attr("x", function(d) { return x(d.x); })
.attr("y", function(d) { return -y(d.y0) - y(d.y); })
.attr("height", function(d) { return y(d.y); })
.attr("width", x.rangeBand());
// add legend
var legend = svg.append("g")
.attr("class", "legend")
.attr("transform", "translate(70,10)")
;
var legendRect = legend.selectAll('rect').data(colors);
legendRect.enter()
.append("rect")
.attr("x", w - 65)
.attr("y", 0) // use this to flip horizontal
.attr("width", 10)
.attr("height", 10)
.attr("y", function(d, i) {
return i * 20;
})
// .attr("x", function(d, i){return w - 65 - i * 70}) // use this to flip horizontal
.style("fill", function(d) {
return d[1];
});
var legendText = legend.selectAll('text').data(colors);
legendText.enter()
.append("text")
.attr("x", w - 52)
.attr("y", function(d, i) {
return i * 20 + 9;
})
.text(function(d) {
return d[0];
});
svg.select("g.x").call(xAxis);
svg.select("g.y").call(yAxis);

d3 stacked bar chart values not showing up on chart

So I have created a D3 Stacked Bar Chart, but I can't seem to figure out how to make the values of the bars show up on the chart. I can display Text "Sample" to each bar, but I can't figure out how to retrieve the data. I tried using this... .text(function(d) {return d.total; }) but with no luck.
jfiddle here.... http://jsfiddle.net/rasweat/D3ErQ/1/
<script src="http://d3js.org/d3.v3.js"></script>
<script type="text/javascript">
var margin = {top: 60, right: 20, bottom: 100, left: 100},
width = 600 - margin.left - margin.right,
height = 400 - margin.top - margin.bottom;
var x = d3.scale.ordinal()
.rangeRoundBands([0, width-100], .1); //width-100 to make room for the legend.
var y = d3.scale.linear()
.rangeRound([height, 0]);
var color = d3.scale.ordinal()
//.range(["#98abc5", "#8a89a6", "#7b6888", "#6b486b", "#a05d56", "#d0743c", "#ff8c00"]);
.range(["#1f77b4", "#ff7f0e","d62728"]); //blue, orange, red
//color code for Progress Report
//.range(["#00FFFF","#00FF00","#990099","#FF0000","#FFFF00"]);
var xAxis = d3.svg.axis()
.scale(x)
.orient("bottom");
var yAxis = d3.svg.axis()
.scale(y)
.orient("left")
.tickFormat(d3.format(".2s"));
var svg = d3.select("#area_progress_report").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 + ")");
// Get the data
//var data = [{"Commodity":"Base","num_complete_print":"3","num_incomplete_print":15},{"Commodity":"Blade","num_complete_print":"1","num_incomplete_print":53},{"Commodity":"DTE","num_complete_print":"1","num_incomplete_print":17},{"Commodity":"HUB","num_complete_print":"0","num_incomplete_print":"18"},{"Commodity":"MH","num_complete_print":"0","num_incomplete_print":"18"},{"Commodity":"Mid","num_complete_print":"0","num_incomplete_print":18},{"Commodity":"Top","num_complete_print":"0","num_incomplete_print":18}];
var data = <?php echo json_encode($dataset_progress001); ?>;
//alert(data);
//d3.csv("data.csv", function(error, data) {
color.domain(d3.keys(data[0]).filter(function(key) { return key !== "Commodity"; }));
data.forEach(function(d) {
var y0 = 0;
d.ages = color.domain().map(function(name) { return {name: name, y0: y0, y1: y0 += +d[name]}; });
d.total = d.ages[d.ages.length - 1].y1;
});
//use this to sort the bars from largest to smallest
//data.sort(function(a, b) { return b.total - a.total; });
x.domain(data.map(function(d) { return d.Commodity; }));
y.domain([0, d3.max(data, function(d) { return d.total; })]);
svg.append("g")
.attr("class", "x axis")
.attr("transform", "translate(0," + height + ")")
.call(xAxis)
.selectAll("text") //added this line through rotate to change orientation of x axis
.style("text-anchor", "end")
.attr("dx", "-.8em")
.attr("dy", "-1em")
.attr("transform", function(d) {
return "rotate(-90)"
});
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");
//grid lines y.ticks controls the number of lines
svg.selectAll("line.horizontalGrid").data(y.ticks(10)).enter()
.append("line")
.attr(
{
"class":"horizontalGrid",
"x1" : 0,
"x2" : width-60,
"y1" : function(d){ return y(d);},
"y2" : function(d){ return y(d);},
"fill" : "none",
"shape-rendering" : "crispEdges",
"stroke" : "grey",
"stroke-width" : "1px"
});
var state = svg.selectAll(".state")
.data(data)
.enter().append("g")
.attr("class", "g")
.attr("transform", function(d) { return "translate(" + x(d.Commodity) + ",0)"; });
state.selectAll("rect")
.data(function(d) { return d.ages; })
.enter().append("rect")
.attr("width", x.rangeBand())
.attr("y", function(d) { return y(d.y1); })
.attr("height", function(d) { return y(d.y0) - y(d.y1); })
.style("fill", function(d) { return color(d.name); });
var legend = svg.selectAll(".legend")
.data(color.domain().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; });
//Added y label 10/28
svg.append("text")
.attr("class", "y label")
.attr("text-anchor", "end")
.attr("y", -60)
.attr("x",-70)
.attr("dy", ".75em")
.attr("transform", "rotate(-90)")
.text("Number Of Components");
//Add Title
svg.append("text")
.attr("x", (width/2) )//(width / 2))
.attr("y", -20) //0 - (margin.top / 2))
.attr("text-anchor", "middle")
.style("font-size", "20px")
.style("text-decoration", "underline")
.text("Inspection Progress Report");
state.selectAll("text")
.data(function(d) { return d.ages; })
.enter()
.append("text")
.attr("x", x.rangeBand()/2)
.attr("y", function(d, i) { return y(d.y1) + (y(d.y0) - y(d.y1))/2; })
.style("text-anchor", "middle")
//.text(function(d) {return d.total; })
.text("sample")
</script>

You have to change this line
.data(function(d) { return d.ages; })
to actually give data() your data. If you have an array with all the ages named ages, then it would be:
.data(ages)
The d argument in function(d) references nothing since data() is actually the method where you input your data.