Develop Reference

Change Highcharts Graph based on two Select inputs

I have an array of data of the following format:
[["sno","day","status","data1","data2","data3","data4"],
["1","01-12-2020","success","23","66","53","34"],
["2","02-12-2020","success","12","9","8","6"],
["3","03-12-2020","success","10","11","16","13"],
["4","04-12-2020","success","34","43","54","34"],
["5","01-12-2020","fail","45","26","36","44"],
["6","02-12-2020","fail","12","15","11","13"],
["7","03-12-2020","fail","34","43","33","29"],
["8","04-12-2020","fail","23","34","31","23"]
]
to display the particular text in Highcharts I used the Following code:
var weekData = [["sno","day","status","data1","data2","data3","data4"],["1","01-12-2020","success","23","66","53","34"],["2","02-12-2020","success","12","9","8","6"],["3","03-12-2020","success","10","11","16","13"],["4","04-12-2020","success","34","43","54","34"],["5","01-12-2020","fail","45","26","36","44"],["6","02-12-2020","fail","12","15","11","13"],["7","03-12-2020","fail","34","43","33","29"],["8","04-12-2020","fail","23","34","31","23"]] ;
//console.log(weekData);
function change()
{
var valStatus = document.getElementById("statusSelect");
status = valStatus.value;
//console.log(status);
if(status == 'success')
{
const successValues = weekData.filter((x)=>x[2] === "success"); //New Cases
console.log(successValues);
return successValues;
}
else if(status == 'fail')
{
const failValues = weekData.filter((x)=>x[2] === "fail"); //New Cases
console.log(failValues)
return failValues;
}
}
function getCol(matrix, col){
var column = [];
for(var i=0; i<matrix.length; i++){
column.push(matrix[i][col]);
}
return column;
}
function chartCreate()
{
change();
const toNumbers = arr => arr.map(Number);
var getstat= change();
var day = getCol(getstat,1);
console.log(day);
var sdata1 = toNumbers(getCol(getstat,3));
console.log("data 1" ,sdata1);
var sdata2 = toNumbers(getCol(getstat,4));
console.log(sdata2);
var sdata3 = toNumbers(getCol(getstat,5));
console.log(sdata3);
var sdata4 = toNumbers(getCol(getstat,6));
console.log(sdata4);
For the full program You can check my fiddle : https://jsfiddle.net/abnitchauhan/L27n0wfs/
the problem is that when I am status select box, The Chart is not updating.
Also I feel that this code is quite lengthy when the datasets will increase overtime. is there any efficient approach to display this data on Highchart's based on the same select options.

I made an update to JS code. See if this is what you want:
var weekData = [["sno","day","status","data1","data2","data3","data4"],["1","01-12-2020","success","23","66","53","34"],["2","02-12-2020","success","12","9","8","6"],["3","03-12-2020","success","10","11","16","13"],["4","04-12-2020","success","34","43","54","34"],["5","01-12-2020","fail","45","26","36","44"],["6","02-12-2020","fail","12","15","11","13"],["7","03-12-2020","fail","34","43","33","29"],["8","04-12-2020","fail","23","34","31","23"]] ;
//console.log(weekData);
function change()
{
var valStatus = document.getElementById("statusSelect");
status = valStatus.value;
//console.log(status);
if(status == 'success')
{
const successValues = weekData.filter((x)=>x[2] === "success"); //New Cases
console.log(successValues);
return chartCreate(successValues);
}
else if(status == 'fail')
{
const failValues = weekData.filter((x)=>x[2] === "fail"); //New Cases
console.log(failValues)
return chartCreate(failValues);
}
}
function getCol(matrix, col){
var column = [];
for(var i=0; i<matrix.length; i++){
column.push(matrix[i][col]);
}
return column;
}
function chartCreate(stat)
{
const toNumbers = arr => arr.map(Number);
var getstat= stat;
var day = getCol(getstat,1);
console.log(day);
var sdata1 = toNumbers(getCol(getstat,3));
console.log("data 1" ,sdata1);
var sdata2 = toNumbers(getCol(getstat,4));
console.log(sdata2);
var sdata3 = toNumbers(getCol(getstat,5));
console.log(sdata3);
var sdata4 = toNumbers(getCol(getstat,6));
console.log(sdata4);
var options = {
chart:{
renderTo: 'chart',
defaultSeriesType: 'line'
},
title: {
text: 'dummy'
},
subtitle: {
text: ' '
},
yAxis: {
title: {
text: ' ',
//tickPointInterval: 250
},
minorTickInterval: 'auto',
// tickInterval: 4,
},
xAxis: {
labels :{
minorTickInterval: 'auto',
formatter: function(){
return day[this.value];
}
},
tickInterval: 10
},
credits: {
enabled: false
},
legend: {
layout: 'vertical',
align: 'right',
verticalAlign: 'middle'
},
plotOptions: {
series: {
label: {
connectorAllowed: false
},
// pointStart: 0
}
},
tooltip: {
// split: true,
formatter: function() {
var points = this.points,
tooltipArray = ['day: <b>' + day[this.x] + '</b><br/> Value : <b>'+ this.y +'</b>']
return tooltipArray;
}
},
series: [
{
name: 'Check',
data: sdata1
}],
responsive: {
rules: [{
condition: {
maxWidth: 500
},
chartOptions: {
legend: {
layout: 'horizontal',
align: 'center',
verticalAlign: 'bottom'
}
}
}]
}
};
var chart = new Highcharts.Chart(options);
$("#dataSelect").on('change', function(){
//alert('f')
var selVal = $("#dataSelect").val();
if(selVal == 'data1' || selVal == '')
{
options.series = [{name: 'Data', data: sdata1}];
options.yAxis = [{tickInterval:undefined, minorTickInterval: 'auto'}];
}
else if(selVal == 'data2')
{
options.series = [{name: 'Data', data: sdata2}]
}
else if(selVal == 'data3')
{
options.series = [{name: 'Data', data: sdata3}];
options.yAxis = [{tickInterval:undefined, minorTickInterval: 'auto'}];
}
else if(selVal == 'data4')
{
options.series = [{name: 'Data', data: sdata4}];
options.yAxis = [{tickInterval:undefined, minorTickInterval: 'auto'}];
}
var chart = new Highcharts.Chart(options);
});
}
change();

Your code looks very complex and does not fully work. In this case, I will suggest using the series setData method mixed with the change event listener. My example is a bit simplified, but I think it might be the right way.
document.getElementById('dataSelect').addEventListener('change', () => {
const selectorValue = document.getElementById('dataSelect').value
chart.series[0].setData(data[selectorValue])
});
API: https://api.highcharts.com/class-reference/Highcharts.Series#setData
Demo: https://jsfiddle.net/BlackLabel/nfz0a9bm/

JavaScript - iterating through an array for checking condition

I am creating a high charts graph that I would like to dynamically give the graph color to depending on the title of an object. I currently have an array graphData that has an object title.
I have 5 possible results of titles:
"LOW", "MEDIUM-LOW", "MEDIUM", "MEDIUM-HIGH", AND "HIGH"
I am now attempting to iterate through my array and assign a color depending on what title the index has.
My entire graph receives one color based off the last title of the array. I would like the color to effect each index of the array seperartely.
For example: if "MEDIUM-HIGH" is the last title in the array, my entire graph gets #DD5F0C
Here is my code:
Array:
graphData: [ […]
​
0: Object { title: "LOW", result: 62582 }
​
1: Object { title: "MEDIUM-LOW", result: 57758 }
​
2: Object { title: "LOW", result: 8795 }
​
3: Object { title: "HIGH", result: 262525 }
​
4: Object { title: "MEDIUM-HIGH", result: 167168 } ]
let graphColor = ""
for (i = 0; i < graphData.length; i++) {
if (graphData[i].title === "LOW") {
graphColor = "#0D6302"
} else if (graphData[i].title === "MEDIUM-LOW") {
graphColor = "#0B7070"
} else if (graphData[i].title === "MEDIUM") {
graphColor = "#DC9603"
} else if (graphData[i].title === "MEDIUM-HIGH") {
graphColor = "#DD5F0C"
} else if (graphData[i].title === "HIGH") {
graphColor = "#C50710"
}
}
HighCharts code :
Highcharts.chart('container', {
chart: {
type: 'bar'
},
title: {
text: "Bar Graph"
},
xAxis: {
},
yAxis: {
min: 0,
formatter: function() {
return this.value + "%";
},
title: {
text: '% of Total'
}
},
legend: {
reversed: false
},
plotOptions: {
series: {
stacking: 'normal'
}
},
series: [{
name: `graphData[0].title`,
color: graphColor,
data: [graphData[0]],
}, {
name: 'graphData[1].title',
color: graphColor,
data: [graphData[1]],
showInLegend: false,
linkedTo: ":previous"
}, {
name: 'graphData[2].title,
color: graphData[0].title,
data: [graphData[2]]
}, {
name: graphData[3].title,
color: '#DC9603',
data: [graphData[3]]
}, {
name: graphData[4].title,
color: graphColor,
data: [graphData[4]]
}, {
name: graphData[5].title,
color: graphColor,
data: [graphData[5]]
}]
});
I am expecting my "color" to be dynamically generated based off of what graphData.title equals for that specific index.

You are having trouble because you have graphData.length number of entries, but only one graphColor variable to hold the color. Your code samples don't look complete so I'll make some assumptions about how the surrounding code must be. I recommend building up your series data in the for-loop directly so you can just use it in the Highcharts.chart call. The code is easier to read that way and probably more flexible too if you need to have more data rows.
// build the series data array here so it's simple to use in the chart call
const series = new Array(graphData.length);
for (let i = 0; i < graphData.length; i++) {
let graphColor = "#000000"; // a default color just in case
// can use if/else or a switch here
if (graphData[i].title === "LOW") {
graphColor = "#0D6302";
} else if (graphData[i].title === "MEDIUM-LOW") {
graphColor = "#0B7070";
} else if (graphData[i].title === "MEDIUM") {
graphColor = "#DC9603";
} else if (graphData[i].title === "MEDIUM-HIGH") {
graphColor = "#DD5F0C";
} else if (graphData[i].title === "HIGH") {
graphColor = "#C50710";
}
series[i] = {
name: graphData[i].title,
color: graphColor,
data: [graphData[i].result]
};
}
// Adjust the series data as needed
series[1].showInLegend = false;
series[1].linkedTo = ":previous";
Highcharts.chart("container", {
chart: { type: "bar" },
title: { text: "Bar Graph" },
xAxis: {},
yAxis: {
min: 0,
formatter: function() {
return this.value + "%";
},
title: { text: "% of Total" }
},
legend: { reversed: false },
plotOptions: { series: { stacking: "normal" } },
series: series
});

Not sure if I've properly understood what are you trying to do, but try this way:
const colorMap = { "LOW":"#0D6302",
"MEDIUM-LOW": "#0B7070",
"MEDIUM": "#DC9603",
"MEDIUM-HIGH": "#DD5F0C",
"HIGH":"#C50710"
}
...
series: [{
name: `graphData[0].title`,
color: colorMap[graphData[0].title],
data: [graphData[0]],
}, {

In the Highchart way - you can iterate through the series after chart initialization and set the wanted colors by particular series.
Demo: https://jsfiddle.net/BlackLabel/6hm4ebna/
chart: {
type: 'bar',
events: {
load() {
let chart = this;
chart.series.forEach(s => {
console.log(s)
if (s.name === 'test1') {
s.update({
color: 'red'
})
}
else if (s.name === 'test3') {
s.update({
color: 'green'
})
}
})
}
}
},
API: https://api.highcharts.com/highcharts/chart.events.load
If this wouldn't help please reproduce your attempt with the sample data on the online editor which I could work on.

Spline Graph with diagonally fixed values with 0,0 and ploting remaing same

We are using Spline Graph for our game in which we are facing issue with x and y axis value which we need to put 0,0 and save the values from initially till end as we need to all plotting from start till end of the value.
Check Live Demo Here
JavaScript Code
<script>
var a = 1;
var b = 1;
var factor = 1.2;
$(document).ready(function () {
Highcharts.chart('container', {
chart: {
type: 'spline',
animation: Highcharts.svg, // don't animate in old IE
marginRight: 10,
events: {
load: function () {
// set up the updating of the chart each second
var series = this.series[0];
setInterval(function () {
b = b*1.2;
console.log(b);
var x = a; // current time
var y = b;
a++;
series.addPoint([x, y], true, true);
}, 700);
}
}
},
title: {
text: 'Live random data'
},
xAxis: {
type: 'number',
min: 0,
tickInterval: 2
},
yAxis: {
title: {
text: 'Value'
},
plotLines: [{
value: 0,
width: 1,
color: '#808080'
}]
},
tooltip: {
formatter: function () {
return '<b>X: ' + this.x+', Y:'+this.y;
}
},
legend: {
enabled: false
},
exporting: {
enabled: false
},
series: [{
name: 'Random data',
data: (function () {
// generate an array of random data
var data = [],i;
for (i = 1; i <= 19; i++) {
b = b*factor;
data.push({
x: a,
y: b
});
a++;
}
return data;
}())
}]
});
});

The following code draws a curve line from the origin (0,0) to the end point which gets updated on the interval. You needed to make the shift variable false in the addPoint call. Higchart docs
$(document).ready(function () {
var a = 1;
var b = 1;
var factor = 1.2;
Highcharts.chart('container', {
chart: {
type: 'spline',
animation: Highcharts.svg, // don't animate in old IE
marginRight: 10,
events: {
load: function () {
// set up the updating of the chart each second
var series = this.series[0];
setInterval(function () {
b = b*1.2;
var x = a; // current time
var y = b;
a++;
// Add new end point
series.addPoint([x, y], true, false);
}, 700);
}
}
},
title: {
text: 'Live random data'
},
xAxis: {
type: 'number',
min: 0,
tickInterval: 2
},
yAxis: {
title: {
text: 'Value'
},
plotLines: [{
value: 0,
width: 1,
color: '#808080'
}]
},
tooltip: {
formatter: function () {
return '<b>X: ' + this.x+', Y:'+this.y;
}
},
legend: {
enabled: false
},
exporting: {
enabled: false
},
series: [{
name: 'Random data',
data: (function () {
// generate an array of random data
// Add point at origin and last point of series
var data = [{x:0,y:0}],i;
for (i = 1; i <= 19; i++) {
b = b*factor;
a++
data.push({
x: a,
y: b
});
}
return data;
}())
}]
});
});
Updated JsFiddle

Highcharts bar chart wont animate

Not sure why because I have done it in the past, but I have a Highcharts bar chart and it won't animate. This is the declaration of the chart,
function initializeData() {
$http.get(url).success(function(ret) {
$scope.jsondata = ret;
var newdata = [];
for (x = 0; x < 5; x++) {
newdata.push({
name: setName($scope.jsondata[x].name),
y: $scope.jsondata[x].data[0],
color: getColor($scope.jsondata[x].data[0])
});
}
$scope.chart.series[0].setData(newdata);
});
mainInterval = $interval(updateData, 5000);
}
function updateData() {
$http.get(url).success(function(ret) {
$scope.jsondata = ret;
console.debug("here");
for (x = 0; x < 5; x++) {
$scope.chart.series[0].data[x].update({
y: $scope.jsondata[x].data[0],
color: getColor($scope.jsondata[x].data[0])
});
}
});
}
$scope.chart = new Highcharts.Chart({
chart: {
renderTo: 'container',
type: 'bar',
animation: true,
events: {
load: initializeData
}
},
title: {
text: ''
},
xAxis: {
type: 'category',
labels: {
style: {
fontSize: '11px'
}
}
},
yAxis: {
min: 0,
max: 100,
title: {
text: 'Total Score',
align: 'high'
}
},
legend: {
enabled: false
},
tooltip: {
pointFormat: 'Total Score <b>{point.y:.3f}</b>'
},
series: [{
name: 'Active Users',
data: [],
dataLabels: {
enabled: true,
rotation: 30,
style: {
fontSize: '10px',
fontFamily: 'Verdana, sans-serif'
},
format: '{point.y:.3f}', // one decimal
}
}]
});
And as you can see I have animate : true, so I am not sure what is the problem here. I have this older plunker where all of the data is in separate series, but it animates fine. But this is the plunker I am working on and having trouble with. They are like identical basically. In the newer one I broke out the initialization of data into its own method, but that is the only real main difference.
Some edits:
So as I was saying, I have done things this way with an areaspline chart (I know it was said they work a bit different but they are set up identically).
function initializeData() {
$interval.cancel(mainInterval);
$scope.previousPackets = '';
$http.get("https://api.myjson.com/bins/nodx").success(function(returnedData) {
var newdata = [];
var x = (new Date()).getTime();
for (var step = 9; step >= 0; step--) {
newdata.push([x - 1000 * step, 0]);
}
$scope.chart.series[0].setData(newdata);
});
mainInterval = $interval(updateData, 2000);
}
function updateData() {
$http.get(url + acronym + '/latest').success(function(returnedData) {
var x = (new Date()).getTime();
if ($scope.previousPackets != returnedData[0].numPackets) {
$scope.chart.series[0].addPoint([x, returnedData[0].numPackets], true, true);
$scope.previousPackets = returnedData[0].numPackets;
} else {
$scope.chart.series[0].addPoint([x, 0], true, true);
}
});
}
$scope.chart = new Highcharts.Chart({
chart: {
renderTo: 'container',
type: 'areaspline',
animation: Highcharts.svg, // don't animate in old IE
marginRight: 10,
events: {
load: initializeData
}
},
title: {
text: ''
},
xAxis: {
type: 'datetime',
tickPixelInterval: 150
},
yAxis: {
title: {
text: 'Packets'
},
plotLines: [{
value: 0,
width: 1,
color: '#d9534f'
}]
},
tooltip: {
formatter: function() {
return Highcharts.numberFormat(this.y) + ' packets<b> | </b>' + Highcharts.dateFormat('%H:%M:%S', this.x);
}
},
legend: {
enabled: false
},
exporting: {
enabled: false
},
series: [{
name: 'Packets',
data: []
}]
});
I also updated the first chunk of code with the initializeData() method and updateData() method which are seemingly identical in both different charts.

It looks like it plays an important role if you provide your data at chart initialization or after. For simplicity I refactored your code a little
function initializeChart(initialData, onload) {
$scope.chart = new Highcharts.Chart({
chart: {
renderTo: 'container',
type: 'bar',
animation: true,
events: {
load: onload
}
....
series: [{
name: 'Active Users',
data: initialData,
dataLabels: {
enabled: true,
format: '{point.y:.3f}', // one decimal
}
}]
});
}
function getData(callback) {
$http.get(url).success(function(ret) {
$scope.jsondata = ret;
var newdata = [];
for (x = 0; x < 5; x++) {
newdata.push([setName(ret[x].name), ret[x].data]);
}
callback(newdata);
});
}
As a result your two planks are in essense reduced to two methods below. The first initializes chart with preloaded data and the second updates data in existing chart.
function readDataFirst() {
getData(function(newdata) {
initializeChart(newdata);
});
}
function initializeChartFirst() {
initializeChart([], function() {
getData(function(newdata) {
$scope.chart.series[0].setData(newdata);
})
});
}
The first one animates fine while the second does not. It looks like highcharts skips animation if dataset is not initial and is treated incompatible.
However if you really want to have animation in your current plant (chart first workflow) you can achieve that by initializing first serie with zeros and then with the real data. This case it will be treated as update
function forceAnimationByDoubleInitialization() {
getData(function(newdata) {
initializeChart([]);
var zerodata = newdata.map(function(item) {
return [item[0], 0]
});
$scope.chart.series[0].setData(zerodata);
$scope.chart.series[0].setData(newdata);
});
All these options are available at http://plnkr.co/edit/pZhBJoV7PmjDNRNOj2Uc

File loading a Csv file into highcharts

I'm plotting Csv column data in highcharts. Instead of the:
$.get('5.csv', function(data)
I want input a local desktop Csv file using:
function handleFileSelect(evt) {
var files = evt.target.files; // FileList object
My current Javascript code is below :
var options = {
chart: {
renderTo: 'container',
defaultSeriesType: 'line'
},
title: {
text: 'Test'
},
xAxis: {
categories: []
},
yAxis: {
title: {
text: 'Units',
}
},
series: []
};
// $.get('5.csv', function(data) {
var file = event.target.file;
var reader = new FileReader();
var txt=reader.readAsText(file);
var lines = txt.split('\n');
var c = [], d = [];
$.each(lines, function(lineNo, line) {
if(lineNo > 0 ){
var items = line.split(',');
var strTemp = items[0];
c = [parseFloat(items[0]), parseFloat(items[1])];
d.push(c);
console.log(c);
}
});
options.xAxis.categories = c;
options.series = [{
data: d
}];
chart = new Highcharts.Chart(options);
});
How would I go about doing this ? I want to upload a Csv file from a local desktop machine. How do I link the File Reader upload of the file to highcharts to plot, instead of using the $.get(5.csv', function(data) { ? Or am I better using jquery-csv (https://github.com/evanplaice/jquery-csv). I know there are browser security issues. My file is a 3 column Csv with a one line header, column 1 is the x-axis, 2 is the y-axis, 3 will be the error bar, which I haven't yet implemented:
Q,I,E
0.009,2.40E-01,5.67E-02
0.011,2.13E-01,3.83E-02
0.013,2.82E-01,2.28E-02
etc ....

This works now upload by File API
function processFiles(files) {
var chart;
options = {
chart: {
zoomType: 'x',
renderTo: 'container',
type: 'line',
zoomType: 'x'
},
title: {
text: ''
},
subtitle: {
text: ''
},
xAxis: {
type: 'linear',
minorTickInterval: 0.1,
title: {
text: 'Q'}
},
yAxis: {
type: 'linear',
minorTickInterval: 0.1,
title: {
text: 'I(ntensity)'
},
},
tooltip: {
shared: true
},
legend: {
enabled: true
},
plotOptions: {
area: {
fillColor: {
linearGradient: [0, 0, 0, 300],
stops: [
[0, Highcharts.getOptions().colors[0]],
[0, 'rgba(2,0,0,0)']
]
},
lineWidth: 1,
marker: {
enabled: false,
states: {
hover: {
enabled: true,
radius: 5
}
}
},
shadow: false,
states: {
hover: {
lineWidth: 1
}
}
}
},
series: [{
name: 'Series'}]
};
var file = files[0]
var reader = new FileReader();
reader.onload = function (e) {
str = e.target.result;
var lines = str.split("\n");
var c = [], d = [], er = [];
$.each(lines, function(lineNo, line) {
if(lineNo > 0 ){
var items = line.split(',');
var strTemp = items[0];
er = parseFloat(items[2])
a = parseFloat(items[0])
b = parseFloat(items[1])
min = (b - (er/2))
max = b + ((er/2))
c = [a , b];
var q = [], e = [];
q = [min, max]
e.push(q);
d.push(c);
console.log(c);
console.log(q);
}
});
options.xAxis.categories = c.name;
lineWidth: 1
options.series = [{
data: d,
type: 'scatter'
}, {
name: 'standard deviation',
type: 'errorbar',
color: 'black',
data : e }
];
$("#Linear").click(function(){
$('#container').highcharts().yAxis[0].update({ type: 'linear'});
});
$("#Log").click(function(){
$('#container').highcharts().yAxis[0].update({ type: 'logarithmic'});
});
$("#Guinier").click(function(){
$('#container').highcharts().yAxis[0].update({ data: Math.log(d)});
options.xAxis.categories = c.name;
lineWidth: 1
options.series = [{
data: d
}]
});
chart = new Highcharts.Chart(options);
}
reader.readAsText(file)
var output = document.getElementById("fileOutput")
};

Due to security reasons you can't load a file directly on the client-side
To do this you need to use the HTML5 File API which will give the user a file dialog to select the file.
If you plan to use jquery-csv here's an example that demonstrates how to do that.
File Handling Demo
I'm biased but I say use jquery-csv to parse the data, trying to write a CSV parser comes with a lot of nasty edge cases.
Source: I'm the author of jquery-csv
As an alternative, if jquery-csv doesn't meet your needs, PapaParse is very good too.