How to convert D3js V2 to V4?

I tried to migrate D3js V2 to V4 of below example:

https://jasonneylon.wordpress.com/2013/09/05/two-sided-horizontal-barchart-using-d3-js/

But getting error while migrating:
Error: attribute y: Expected length, "NaN".

at line no 201:
.attr("y", function(d, z){ return y(z) + y.bandwidth()/2; } )
and
line no 223:
.attr("y", function(d){ return y(d) + y.bandwidth()/2; }

Please advice.

<!DOCTYPE html>

<html>

<head>

<title>Bar Chart</title>

<script src="http://d3js.org/d3.v4.js"></script>

<style type="text/css">

.chart {

  background: #00ccff;

  margin: 10px;

  padding-top: 10px; 

}

.chart .right {

  stroke: white;

  fill: indianred; 

}

.chart .left {

  stroke: white;

  fill: steelblue; 

}

.chart rect:hover {

  fill: #64707d; 

}

.chart text {

  fill: white; 

}

.chart text.name {

  fill: black; 

}

</style>

</head>

<body>

<h1>Two sided horiztontal bar chart</h1>

<script type="text/javascript">

  var randomNumbers = function() { 

    var numbers = ;

    for (var i = 0; i < 20; i++) {

      numbers.push(parseInt(Math.random() * 19) + 1);

    }

    return numbers;

  };



  var randomNames = function() { 

    var names = ;

    for (var i = 0; i < 20; i++) {

      names.push(String.fromCharCode(65 + Math.random() * 25) + String.fromCharCode(65 + Math.random() * 25) + String.fromCharCode(65 + Math.random() * 25));

    }

    return names;

  };



  var names = randomNames();

  var leftData = randomNumbers();  

  var rightData = randomNumbers();



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

    console.log(names[i] + " from: " + leftData[i] + " to: " + rightData[i]);  

  }

  var labelArea = 160;

  var chart,

      width = 400,

      bar_height = 20,

      height = bar_height * (names.length);

  var rightOffset = width + labelArea;

  var chart = d3.select("body")

    .append('svg')

    .attr('class', 'chart')

    .attr('width', labelArea + width + width)

    .attr('height', height);



  var xFrom = d3.scaleLinear()

     .domain([0, d3.max(leftData)])

     .range([0, width]);



  var y = d3.scaleBand()

     .domain(names)

     .rangeRound([10, height]);

    console.log('Y Range: '+y.range());

    console.log('y.bandwidth(): '+y.bandwidth()); // 33



  var yPosByIndex = function(d, index){ return y(index); } 

  chart.selectAll("rect.left")

    .data(leftData)

    .enter().append("rect")

    .attr("x", function(pos) { return width - xFrom(pos); })

    .attr("y", yPosByIndex)

    .attr("class", "left")

    .attr("width", xFrom)

    .attr("height", y.bandwidth()); 



  chart.selectAll("text.leftscore")

    .data(leftData)

    .enter().append("text")

    .attr("x", function(d) { return width - xFrom(d); })

    .attr("y", function(d, z){ return y(z) + y.bandwidth()/2; } )

    .attr("dx", "20")

    .attr("dy", ".36em")

    .attr("text-anchor", "end")

    .attr('class', 'leftscore')

    .text(String);



  chart.selectAll("text.name")

    .data(names)

    .enter().append("text")

    .attr("x", (labelArea / 2) + width)

    .attr("y", function(d){ return y(d) + y.bandwidth()/2; } )

    .attr("dy", ".20em")

    .attr("text-anchor", "middle")

    .attr('class', 'name')

    .text(String);



  var xTo = d3.scaleLinear()

     .domain([0, d3.max(rightData)])

     .range([0, width]);



  chart.selectAll("rect.right")

    .data(rightData)

    .enter().append("rect")

    .attr("x", rightOffset)

    .attr("y", yPosByIndex)

    .attr("class", "right")

    .attr("width", xTo)

    .attr("height", y.bandwidth()); 



  chart.selectAll("text.score")

    .data(rightData)

    .enter().append("text")

    .attr("x", function(d) { return xTo(d) +  rightOffset; })

    .attr("y", function(d,z){ console.log(y(z)); return y(z) + y.bandwidth()/2; } )

    .attr("dx", -5)

    .attr("dy", ".36em")

    .attr("text-anchor", "end")

    .attr('class', 'score')

    .text(String);

</script>

</body>

</html>

edited Nov 23 '18 at 11:17

rioV8

4,1302311

asked Nov 23 '18 at 5:42

user2644848

add a comment |

I tried to migrate D3js V2 to V4 of below example:

https://jasonneylon.wordpress.com/2013/09/05/two-sided-horizontal-barchart-using-d3-js/

But getting error while migrating:
Error: attribute y: Expected length, "NaN".

at line no 201:
.attr("y", function(d, z){ return y(z) + y.bandwidth()/2; } )
and
line no 223:
.attr("y", function(d){ return y(d) + y.bandwidth()/2; }

Please advice.

<!DOCTYPE html>

<html>

<head>

<title>Bar Chart</title>

<script src="http://d3js.org/d3.v4.js"></script>

<style type="text/css">

.chart {

  background: #00ccff;

  margin: 10px;

  padding-top: 10px; 

}

.chart .right {

  stroke: white;

  fill: indianred; 

}

.chart .left {

  stroke: white;

  fill: steelblue; 

}

.chart rect:hover {

  fill: #64707d; 

}

.chart text {

  fill: white; 

}

.chart text.name {

  fill: black; 

}

</style>

</head>

<body>

<h1>Two sided horiztontal bar chart</h1>

<script type="text/javascript">

  var randomNumbers = function() { 

    var numbers = ;

    for (var i = 0; i < 20; i++) {

      numbers.push(parseInt(Math.random() * 19) + 1);

    }

    return numbers;

  };



  var randomNames = function() { 

    var names = ;

    for (var i = 0; i < 20; i++) {

      names.push(String.fromCharCode(65 + Math.random() * 25) + String.fromCharCode(65 + Math.random() * 25) + String.fromCharCode(65 + Math.random() * 25));

    }

    return names;

  };



  var names = randomNames();

  var leftData = randomNumbers();  

  var rightData = randomNumbers();



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

    console.log(names[i] + " from: " + leftData[i] + " to: " + rightData[i]);  

  }

  var labelArea = 160;

  var chart,

      width = 400,

      bar_height = 20,

      height = bar_height * (names.length);

  var rightOffset = width + labelArea;

  var chart = d3.select("body")

    .append('svg')

    .attr('class', 'chart')

    .attr('width', labelArea + width + width)

    .attr('height', height);



  var xFrom = d3.scaleLinear()

     .domain([0, d3.max(leftData)])

     .range([0, width]);



  var y = d3.scaleBand()

     .domain(names)

     .rangeRound([10, height]);

    console.log('Y Range: '+y.range());

    console.log('y.bandwidth(): '+y.bandwidth()); // 33



  var yPosByIndex = function(d, index){ return y(index); } 

  chart.selectAll("rect.left")

    .data(leftData)

    .enter().append("rect")

    .attr("x", function(pos) { return width - xFrom(pos); })

    .attr("y", yPosByIndex)

    .attr("class", "left")

    .attr("width", xFrom)

    .attr("height", y.bandwidth()); 



  chart.selectAll("text.leftscore")

    .data(leftData)

    .enter().append("text")

    .attr("x", function(d) { return width - xFrom(d); })

    .attr("y", function(d, z){ return y(z) + y.bandwidth()/2; } )

    .attr("dx", "20")

    .attr("dy", ".36em")

    .attr("text-anchor", "end")

    .attr('class', 'leftscore')

    .text(String);



  chart.selectAll("text.name")

    .data(names)

    .enter().append("text")

    .attr("x", (labelArea / 2) + width)

    .attr("y", function(d){ return y(d) + y.bandwidth()/2; } )

    .attr("dy", ".20em")

    .attr("text-anchor", "middle")

    .attr('class', 'name')

    .text(String);



  var xTo = d3.scaleLinear()

     .domain([0, d3.max(rightData)])

     .range([0, width]);



  chart.selectAll("rect.right")

    .data(rightData)

    .enter().append("rect")

    .attr("x", rightOffset)

    .attr("y", yPosByIndex)

    .attr("class", "right")

    .attr("width", xTo)

    .attr("height", y.bandwidth()); 



  chart.selectAll("text.score")

    .data(rightData)

    .enter().append("text")

    .attr("x", function(d) { return xTo(d) +  rightOffset; })

    .attr("y", function(d,z){ console.log(y(z)); return y(z) + y.bandwidth()/2; } )

    .attr("dx", -5)

    .attr("dy", ".36em")

    .attr("text-anchor", "end")

    .attr('class', 'score')

    .text(String);

</script>

</body>

</html>

edited Nov 23 '18 at 11:17

rioV8

4,1302311

asked Nov 23 '18 at 5:42

user2644848

add a comment |

I tried to migrate D3js V2 to V4 of below example:

https://jasonneylon.wordpress.com/2013/09/05/two-sided-horizontal-barchart-using-d3-js/

But getting error while migrating:
Error: attribute y: Expected length, "NaN".

at line no 201:
.attr("y", function(d, z){ return y(z) + y.bandwidth()/2; } )
and
line no 223:
.attr("y", function(d){ return y(d) + y.bandwidth()/2; }

Please advice.

<!DOCTYPE html>

<html>

<head>

<title>Bar Chart</title>

<script src="http://d3js.org/d3.v4.js"></script>

<style type="text/css">

.chart {

  background: #00ccff;

  margin: 10px;

  padding-top: 10px; 

}

.chart .right {

  stroke: white;

  fill: indianred; 

}

.chart .left {

  stroke: white;

  fill: steelblue; 

}

.chart rect:hover {

  fill: #64707d; 

}

.chart text {

  fill: white; 

}

.chart text.name {

  fill: black; 

}

</style>

</head>

<body>

<h1>Two sided horiztontal bar chart</h1>

<script type="text/javascript">

  var randomNumbers = function() { 

    var numbers = ;

    for (var i = 0; i < 20; i++) {

      numbers.push(parseInt(Math.random() * 19) + 1);

    }

    return numbers;

  };



  var randomNames = function() { 

    var names = ;

    for (var i = 0; i < 20; i++) {

      names.push(String.fromCharCode(65 + Math.random() * 25) + String.fromCharCode(65 + Math.random() * 25) + String.fromCharCode(65 + Math.random() * 25));

    }

    return names;

  };



  var names = randomNames();

  var leftData = randomNumbers();  

  var rightData = randomNumbers();



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

    console.log(names[i] + " from: " + leftData[i] + " to: " + rightData[i]);  

  }

  var labelArea = 160;

  var chart,

      width = 400,

      bar_height = 20,

      height = bar_height * (names.length);

  var rightOffset = width + labelArea;

  var chart = d3.select("body")

    .append('svg')

    .attr('class', 'chart')

    .attr('width', labelArea + width + width)

    .attr('height', height);



  var xFrom = d3.scaleLinear()

     .domain([0, d3.max(leftData)])

     .range([0, width]);



  var y = d3.scaleBand()

     .domain(names)

     .rangeRound([10, height]);

    console.log('Y Range: '+y.range());

    console.log('y.bandwidth(): '+y.bandwidth()); // 33



  var yPosByIndex = function(d, index){ return y(index); } 

  chart.selectAll("rect.left")

    .data(leftData)

    .enter().append("rect")

    .attr("x", function(pos) { return width - xFrom(pos); })

    .attr("y", yPosByIndex)

    .attr("class", "left")

    .attr("width", xFrom)

    .attr("height", y.bandwidth()); 



  chart.selectAll("text.leftscore")

    .data(leftData)

    .enter().append("text")

    .attr("x", function(d) { return width - xFrom(d); })

    .attr("y", function(d, z){ return y(z) + y.bandwidth()/2; } )

    .attr("dx", "20")

    .attr("dy", ".36em")

    .attr("text-anchor", "end")

    .attr('class', 'leftscore')

    .text(String);



  chart.selectAll("text.name")

    .data(names)

    .enter().append("text")

    .attr("x", (labelArea / 2) + width)

    .attr("y", function(d){ return y(d) + y.bandwidth()/2; } )

    .attr("dy", ".20em")

    .attr("text-anchor", "middle")

    .attr('class', 'name')

    .text(String);



  var xTo = d3.scaleLinear()

     .domain([0, d3.max(rightData)])

     .range([0, width]);



  chart.selectAll("rect.right")

    .data(rightData)

    .enter().append("rect")

    .attr("x", rightOffset)

    .attr("y", yPosByIndex)

    .attr("class", "right")

    .attr("width", xTo)

    .attr("height", y.bandwidth()); 



  chart.selectAll("text.score")

    .data(rightData)

    .enter().append("text")

    .attr("x", function(d) { return xTo(d) +  rightOffset; })

    .attr("y", function(d,z){ console.log(y(z)); return y(z) + y.bandwidth()/2; } )

    .attr("dx", -5)

    .attr("dy", ".36em")

    .attr("text-anchor", "end")

    .attr('class', 'score')

    .text(String);

</script>

</body>

</html>

edited Nov 23 '18 at 11:17

rioV8

4,1302311

asked Nov 23 '18 at 5:42

user2644848

I tried to migrate D3js V2 to V4 of below example:

https://jasonneylon.wordpress.com/2013/09/05/two-sided-horizontal-barchart-using-d3-js/

But getting error while migrating:
Error: attribute y: Expected length, "NaN".

at line no 201:
.attr("y", function(d, z){ return y(z) + y.bandwidth()/2; } )
and
line no 223:
.attr("y", function(d){ return y(d) + y.bandwidth()/2; }

Please advice.

<!DOCTYPE html>

<html>

<head>

<title>Bar Chart</title>

<script src="http://d3js.org/d3.v4.js"></script>

<style type="text/css">

.chart {

  background: #00ccff;

  margin: 10px;

  padding-top: 10px; 

}

.chart .right {

  stroke: white;

  fill: indianred; 

}

.chart .left {

  stroke: white;

  fill: steelblue; 

}

.chart rect:hover {

  fill: #64707d; 

}

.chart text {

  fill: white; 

}

.chart text.name {

  fill: black; 

}

</style>

</head>

<body>

<h1>Two sided horiztontal bar chart</h1>

<script type="text/javascript">

  var randomNumbers = function() { 

    var numbers = ;

    for (var i = 0; i < 20; i++) {

      numbers.push(parseInt(Math.random() * 19) + 1);

    }

    return numbers;

  };



  var randomNames = function() { 

    var names = ;

    for (var i = 0; i < 20; i++) {

      names.push(String.fromCharCode(65 + Math.random() * 25) + String.fromCharCode(65 + Math.random() * 25) + String.fromCharCode(65 + Math.random() * 25));

    }

    return names;

  };



  var names = randomNames();

  var leftData = randomNumbers();  

  var rightData = randomNumbers();



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

    console.log(names[i] + " from: " + leftData[i] + " to: " + rightData[i]);  

  }

  var labelArea = 160;

  var chart,

      width = 400,

      bar_height = 20,

      height = bar_height * (names.length);

  var rightOffset = width + labelArea;

  var chart = d3.select("body")

    .append('svg')

    .attr('class', 'chart')

    .attr('width', labelArea + width + width)

    .attr('height', height);



  var xFrom = d3.scaleLinear()

     .domain([0, d3.max(leftData)])

     .range([0, width]);



  var y = d3.scaleBand()

     .domain(names)

     .rangeRound([10, height]);

    console.log('Y Range: '+y.range());

    console.log('y.bandwidth(): '+y.bandwidth()); // 33



  var yPosByIndex = function(d, index){ return y(index); } 

  chart.selectAll("rect.left")

    .data(leftData)

    .enter().append("rect")

    .attr("x", function(pos) { return width - xFrom(pos); })

    .attr("y", yPosByIndex)

    .attr("class", "left")

    .attr("width", xFrom)

    .attr("height", y.bandwidth()); 



  chart.selectAll("text.leftscore")

    .data(leftData)

    .enter().append("text")

    .attr("x", function(d) { return width - xFrom(d); })

    .attr("y", function(d, z){ return y(z) + y.bandwidth()/2; } )

    .attr("dx", "20")

    .attr("dy", ".36em")

    .attr("text-anchor", "end")

    .attr('class', 'leftscore')

    .text(String);



  chart.selectAll("text.name")

    .data(names)

    .enter().append("text")

    .attr("x", (labelArea / 2) + width)

    .attr("y", function(d){ return y(d) + y.bandwidth()/2; } )

    .attr("dy", ".20em")

    .attr("text-anchor", "middle")

    .attr('class', 'name')

    .text(String);



  var xTo = d3.scaleLinear()

     .domain([0, d3.max(rightData)])

     .range([0, width]);



  chart.selectAll("rect.right")

    .data(rightData)

    .enter().append("rect")

    .attr("x", rightOffset)

    .attr("y", yPosByIndex)

    .attr("class", "right")

    .attr("width", xTo)

    .attr("height", y.bandwidth()); 



  chart.selectAll("text.score")

    .data(rightData)

    .enter().append("text")

    .attr("x", function(d) { return xTo(d) +  rightOffset; })

    .attr("y", function(d,z){ console.log(y(z)); return y(z) + y.bandwidth()/2; } )

    .attr("dx", -5)

    .attr("dy", ".36em")

    .attr("text-anchor", "end")

    .attr('class', 'score')

    .text(String);

</script>

</body>

</html>

d3.js visualization

edited Nov 23 '18 at 11:17

rioV8

4,1302311

asked Nov 23 '18 at 5:42

user2644848

edited Nov 23 '18 at 11:17

rioV8

4,1302311

asked Nov 23 '18 at 5:42

user2644848

edited Nov 23 '18 at 11:17

rioV8

4,1302311

edited Nov 23 '18 at 11:17

rioV8

4,1302311

edited Nov 23 '18 at 11:17

rioV8

4,1302311

asked Nov 23 '18 at 5:42

user2644848

asked Nov 23 '18 at 5:42

user2644848

asked Nov 23 '18 at 5:42

user2644848

add a comment |

1 Answer
1

active

oldest

votes

You call console.log(y(z)); and you get 40 undefined. And you don't investigate why?

What is the domain of y? Strings

So if you give it a number it most likely gives you a wrong answer.

The same reason why your function

var yPosByIndex = function(d, index){ return y(index); }

is wrong.

The main reason you have all these problems is that you have multiple arrays of information that are related based on the index. Create 1 array with objects that contain all the related data.

var data = d3.range(20).map(i => { return {name: randomName(), left:randomNumber(), right:randomNumber()}; } );

Now adjust your program to use d.name, d.left, d.right.

Don't use parseInt if you want to calculate the integer part of a number, it is slow and unclear what you want, use Math.floor()

Better to use the same xScale for the left and right bars. Why should a bar with value 10 be smaller on one of the sides?

edited Nov 23 '18 at 12:05

answered Nov 23 '18 at 11:40

rioV8

4,1302311

Thanks for your reply. I am new to D3 js, just want to build chart based on the chart. I am a very beginner to d3js. Even I dont understand your response. let try to study and fix the issue. Thanks
– user2644848
Nov 23 '18 at 17:45

add a comment |

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1 Answer
1

active

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1 Answer
1

active

oldest

votes

You call console.log(y(z)); and you get 40 undefined. And you don't investigate why?

What is the domain of y? Strings

So if you give it a number it most likely gives you a wrong answer.

The same reason why your function

var yPosByIndex = function(d, index){ return y(index); }

is wrong.

The main reason you have all these problems is that you have multiple arrays of information that are related based on the index. Create 1 array with objects that contain all the related data.

var data = d3.range(20).map(i => { return {name: randomName(), left:randomNumber(), right:randomNumber()}; } );

Now adjust your program to use d.name, d.left, d.right.

Don't use parseInt if you want to calculate the integer part of a number, it is slow and unclear what you want, use Math.floor()

Better to use the same xScale for the left and right bars. Why should a bar with value 10 be smaller on one of the sides?

edited Nov 23 '18 at 12:05

answered Nov 23 '18 at 11:40

rioV8

4,1302311

Thanks for your reply. I am new to D3 js, just want to build chart based on the chart. I am a very beginner to d3js. Even I dont understand your response. let try to study and fix the issue. Thanks
– user2644848
Nov 23 '18 at 17:45

add a comment |

You call console.log(y(z)); and you get 40 undefined. And you don't investigate why?

What is the domain of y? Strings

So if you give it a number it most likely gives you a wrong answer.

The same reason why your function

var yPosByIndex = function(d, index){ return y(index); }

is wrong.

The main reason you have all these problems is that you have multiple arrays of information that are related based on the index. Create 1 array with objects that contain all the related data.

var data = d3.range(20).map(i => { return {name: randomName(), left:randomNumber(), right:randomNumber()}; } );

Now adjust your program to use d.name, d.left, d.right.

Don't use parseInt if you want to calculate the integer part of a number, it is slow and unclear what you want, use Math.floor()

Better to use the same xScale for the left and right bars. Why should a bar with value 10 be smaller on one of the sides?

edited Nov 23 '18 at 12:05

answered Nov 23 '18 at 11:40

rioV8

4,1302311

Thanks for your reply. I am new to D3 js, just want to build chart based on the chart. I am a very beginner to d3js. Even I dont understand your response. let try to study and fix the issue. Thanks
– user2644848
Nov 23 '18 at 17:45

add a comment |

You call console.log(y(z)); and you get 40 undefined. And you don't investigate why?

What is the domain of y? Strings

So if you give it a number it most likely gives you a wrong answer.

The same reason why your function

var yPosByIndex = function(d, index){ return y(index); }

is wrong.

The main reason you have all these problems is that you have multiple arrays of information that are related based on the index. Create 1 array with objects that contain all the related data.

var data = d3.range(20).map(i => { return {name: randomName(), left:randomNumber(), right:randomNumber()}; } );

Now adjust your program to use d.name, d.left, d.right.

Don't use parseInt if you want to calculate the integer part of a number, it is slow and unclear what you want, use Math.floor()

Better to use the same xScale for the left and right bars. Why should a bar with value 10 be smaller on one of the sides?

edited Nov 23 '18 at 12:05

answered Nov 23 '18 at 11:40

rioV8

4,1302311

You call console.log(y(z)); and you get 40 undefined. And you don't investigate why?

What is the domain of y? Strings

So if you give it a number it most likely gives you a wrong answer.

The same reason why your function

var yPosByIndex = function(d, index){ return y(index); }

is wrong.

The main reason you have all these problems is that you have multiple arrays of information that are related based on the index. Create 1 array with objects that contain all the related data.

var data = d3.range(20).map(i => { return {name: randomName(), left:randomNumber(), right:randomNumber()}; } );

Now adjust your program to use d.name, d.left, d.right.

Don't use parseInt if you want to calculate the integer part of a number, it is slow and unclear what you want, use Math.floor()

Better to use the same xScale for the left and right bars. Why should a bar with value 10 be smaller on one of the sides?

edited Nov 23 '18 at 12:05

answered Nov 23 '18 at 11:40

rioV8

4,1302311

edited Nov 23 '18 at 12:05

answered Nov 23 '18 at 11:40

rioV8

4,1302311

answered Nov 23 '18 at 11:40

rioV8

4,1302311

answered Nov 23 '18 at 11:40

rioV8

4,1302311

Thanks for your reply. I am new to D3 js, just want to build chart based on the chart. I am a very beginner to d3js. Even I dont understand your response. let try to study and fix the issue. Thanks
– user2644848
Nov 23 '18 at 17:45

add a comment |

Thanks for your reply. I am new to D3 js, just want to build chart based on the chart. I am a very beginner to d3js. Even I dont understand your response. let try to study and fix the issue. Thanks
– user2644848
Nov 23 '18 at 17:45

Thanks for your reply. I am new to D3 js, just want to build chart based on the chart. I am a very beginner to d3js. Even I dont understand your response. let try to study and fix the issue. Thanks
– user2644848
Nov 23 '18 at 17:45

add a comment |

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