HighStock Multiple series from CSV file (Arduino Based & JavaScript)

HighStock Multiple series from CSV file (Arduino Based & JavaScript) - javascript

Ok hello everyone. I have designed my HighStock works from
CSV-file. I can get time and 1 line to my serie. I want to
get 2 lines from data. Any ideas? In future I want to get 2 decimals for example 25,01. have you got ideas for that?
In CSV there's seconds,data,data. And it's prints it 1minutes.
And yes, I'm from Finland Student and my code sucks... :)
http://imgur.com/L2VSRGj
Data:
Time in Seconds,Value,Value
0,25,23
60,25,23
120,25,23
....
14220,24,22
14280,24,22
14340,24,22
Javascript in my HC.htm: (it's index)
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Hannun virtamittaus</title>
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.8.2/jquery.min.js"></script>
<style type="text/css">
${demo.css}
</style>
<script type="text/javascript">
function getDataFilename(str){
point = str.lastIndexOf("file=")+4;
tempString = str.substring(point+1,str.length)
if (tempString.indexOf("&") == -1){
return(tempString);
}
else{
return tempString.substring(0,tempString.indexOf("&"));
}
}
query = window.location.search;
var dataFilePath = "/data/"+getDataFilename(query);
$(function () {
var chart;
$(document).ready(function() {
// define the options
var options = {
chart: {
renderTo: 'container',
zoomType: 'x',
spacingRight: 5
},
title: {
text: 'Arduinolla mitatut virran arvot'
},
subtitle: {
text: 'Zoomaa haluttu luenta alue'
},
xAxis: {
type: 'datetime',
maxZoom: 2 * 4000000
},
yAxis: {
title: {
text: 'Virran arvot 0-250A'
},
min: 0,
startOnTick: false,
showFirstLabel: false
},
legend: {
enabled: false
},
tooltip: {
formatter: function() {
return '<b>'+ this.series.name +'</b><br/>'+
Highcharts.dateFormat('%H:%M - %b %e, %Y', this.x) +': '+ this.y;
}
},
plotOptions: {
series: {
cursor: 'pointer',
lineWidth: 1.0,
point: {
events: {
click: function() {
hs.htmlExpand(null, {
pageOrigin: {
x: this.pageX,
y: this.pageY
},
headingText: this.series.name,
maincontentText: Highcharts.dateFormat('%H:%M - %b %e, %Y', this.x) +':<br/> '+
this.y,
width: 100
});
}
}
},
}
},
series: [{
name: 'Op1',
marker: {
radius: 2
}
}]
};
// Load data asynchronously using jQuery. On success, add the data
// to the options and initiate the chart.
// http://api.jquery.com/jQuery.get/
jQuery.get(dataFilePath, null, function(csv, state, xhr) {
var lines = [],
date,
// set up the two data series
lightLevels = [];
// inconsistency
if (typeof csv !== 'string') {
csv = xhr.responseText;
}
// split the data return into lines and parse them
csv = csv.split(/\n/g);
jQuery.each(csv, function(i, line) {
// all data lines start with a double quote
line = line.split(',');
date = parseInt(line[0], 10)*1400;
lightLevels.push([
date,
parseInt(line[1], 10)
]);
});
options.series[0].data = lightLevels;
chart = new Highcharts.Chart(options);
});
});
});
</script>
</head>
<body>
<script src="https://code.highcharts.com/stock/4.2.4/highstock.js"></script>
<script src="https://code.highcharts.com/stock/4.2.4/modules/exporting.js"></script>
<div id="container" style="height: 400px; min-width: 155px"></div>
</body>
</html>

You need to set an array of series objects.
Series:
series: [{
name: 'Op1',
marker: {
radius: 2
}
},{
name: 'Op2'
}]
Parser
jQuery.get(dataFilePath, null, function(csv, state, xhr) {
var lines = [],
date,
// set up the two data series
lightLevels = [];
topLevels = [];
// inconsistency
if (typeof csv !== 'string') {
csv = xhr.responseText;
}
// split the data return into lines and parse them
csv = csv.split(/\n/g);
jQuery.each(csv, function(i, line) {
// all data lines start with a double quote
line = line.split(',');
date = parseInt(line[0], 10)*1400;
lightLevels.push([
date,
parseInt(line[1], 10)
]);
topLevels.push([
date,
parseInt(line[2], 10)
]);
});
options.series[0].data = lightLevels;
options.series[1].data = topLevels;
chart = new Highcharts.Chart(options);
});

Related

reading data from CSV and show continuous graph

I am trying to plot a chart which will read a data from csv file which is appending on every minute with latest data as per below format.
The chart will continue reading data from csv file and show the graph on every second wise. Can you please help me on this? I want to show the exact time which are coming from file should be show on graph.
CSV format..
time,count
18:01:00,3
18:01:01,4
....
$(document).ready(function () {
var csv = [],
x;
Highcharts.setOptions({
global: {
useUTC: false
}
});
var data = 'time,count\n18:01:00,3\n18:01:01,4';
//$.get('data.csv', function(data) {
var lines = data.split('\n');
$.each(lines, function(lineNo, line) {
if(lineNo > 0) {
var items = line.split(',');
useUTC: false;
x = items[0].split(':');
csv.push([Date.UTC(2015,1,1,x[0],x[1],x[2]), parseFloat(items[1])]);
}
});
console.log(csv);
$('#container').highcharts({
chart: {
renderTo: 'container',
type: 'spline',
animation: Highcharts.svg, // don't animate in old IE
marginRight: 10,
useUTC: false,
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// set up the updating of the chart each second
var series = this.series[0];
setInterval(function () {
var l = series.data.length - 1,
lastX = series.data[l].x;
$.get('data.csv', function(data) {
var lines = data.split('\n'),
len = lines.length,
items = lines[len - 1].split(','),
x = items[0].split(':'),
y = parseFloat(items[1]);
useUTC: false;
x = Date.UTC(2015,1,1,x[0],x[1],x[2]);
if(x !== lastX) {
series.addPoint([x, y], true, true);
}
});
}, 1000); //refresh each 1 second
}
}
},
title: {
text: 'TPS Data'
},
xAxis: {
type: 'datetime',
tickPixelInterval: 150
},
yAxis: {
title: {
text: 'Value'
},
plotLines: [{
value: 3,
width: 1,
color: '#808080'
}]
},
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formatter: function () {
return '<b>' + this.series.name + '</b><br/>' +
Highcharts.dateFormat('%H:%M:%S', this.x) + '<br/>' +
Highcharts.numberFormat(this.y, 2);
}
},
legend: {
enabled: false
},
exporting: {
enabled: false
},
series: [{
name: 'Count',
data: csv
}]
});
//});
});
div {
min-width: 50px;
height: 200px;
margin: 0 auto;
}
<script type="text/javascript" src="http://code.jquery.com/jquery-1.12.0.js"></script>
<script type="text/javascript" src="http://code.highcharts.com/highcharts.js"></script>
<div id="container" style=""></div>
Note In the snippet I was replace the ajax function $.get with hardcoded data so it will show the result but the question is about the ajax way.

Why is my addPoint() not recognized as a function in my highcharts code?

I am working with Highcharts and live data. I have my ajax all set up properly it seems and have a setTimeout called to bring in live data. Whenever that data comes in I want to addPoint() to my series and draw the new graph (shifting to the left). Below is my code, line 85 is the .addPoint call but you will see in the console that it is showing as not a function or undefined.
I know from the console as well that I am a calling my data correctly from my chart (chart1.data.series[0] returns and object). Here is the highcharts documentation on series data and addPoint : < http://api.highcharts.com/highcharts#Series.addPoint >
Any idea where I went wrong? I am new to js 1 year <. so I appreciate all your help!
<!doctype html>
<html>
<head>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.2/jquery.min.js"></script>
<script src="http://code.highcharts.com/highcharts.js"></script>
</head>
<body>
<div id="container" style="width:100%"></div>
</body>
<script>
chart1 = {
yAxisMin: null,
yAxisMax: null
};
// empty objects for our data and to create chart
seriesData = [];
BPM = [];
time1 = [];
// console.log(chart1.data.series);
$(function() {
$(document).ready(function() {
Highcharts.setOptions({
global: {
useUTC: false
}
});
function requestData() {
var url = 'http://msbandhealth.azurewebsites.net/odata/PulsesAPI/';
$.ajax({
url: url,
dataType: 'json',
context: seriesData,
success: function(data) {
shift = chart1.data.series[0].data.length > 20;
// structure our data
for (var i = 0; i < data.value.length; i++) {
bpm = data.value[i].BPM;
time = data.value[i].Time;
console.log(time);
this.push([time, BPM]);
BPM.push(bpm);
time1.push(time);
}
// console.log(series[0]);
// find the highest pulse so we can set it to the highest y point
chart1.yAxisMax = (function(array) {
var pulse_array = [];
for (var i = 0; i < array.length; i++) {
if (array[i] != null) {
pulse_array.push(array[i]);
}
}
return Math.max.apply(Math, pulse_array);
})(BPM);
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var pulse_array = [];
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if (array[i] != null) {
pulse_array.push(array[i]);
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}
return Math.min.apply(Math, pulse_array);
})(BPM);
// set our data series and create new chart
chart1.data.series[0].data = BPM;
chart = new Highcharts.Chart(chart1.data);
$('#container').css({
height: '400px'
});
chart1.data.series[0].addPoint(BPM, true, true);
// setTimeout(requestData, 3000);
console.log(chart1.data.series);
}
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}
// give highcharts something to render to
container = document.getElementById("container");
chart1.data = {
chart: {
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tickPixelInterval: 150
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plotLines: [{
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}]
},
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Highcharts.dateFormat('%H:%M:%S', this.x) + '<br/>' +
Highcharts.numberFormat(this.y, 2);
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enabled: false
},
exporting: {
enabled: false
},
series: [{
name: 'Beats Per Minute',
data: []
}]
};
});
});
</script>
</html>

You should use reference to chart and then call addPoint, instead of refer to chart configuration object.
Correct form: chart.series[0].addPoint()

Highcharts in Laravel 4 project are not displayed

I'm new in Laravel, so I'm still facing problems whenever I try to add js functions to my code.
I need to add a highchart to my laravel project. As a beginning, I just copied the code of one of the charts available on highcharts.com and pasted it in the main view, but nothing is being displayed.
When I added the same code to a normal html file, the graph was displayed normally.
Here's my javascript code
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.2/jquery.min.js"></script>
<script src="http://code.highcharts.com/highcharts.js"></script>
<script type="text/javascript">
$(function () {
$(document).ready(function () {
Highcharts.setOptions({
global: {
useUTC: false
}
});
$('#container').highcharts({
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 () {
var x = (new Date()).getTime(), // current time
y = Math.random();
series.addPoint([x, y], true, true);
}, 1000);
}
}
},
title: {
text: 'Live random data'
},
xAxis: {
type: 'datetime',
tickPixelInterval: 150
},
yAxis: {
title: {
text: 'Value'
},
plotLines: [{
value: 0,
width: 1,
color: '#808080'
}]
},
tooltip: {
formatter: function () {
return '<b>' + this.series.name + '</b><br/>' +
Highcharts.dateFormat('%Y-%m-%d %H:%M:%S', this.x) + '<br/>' +
Highcharts.numberFormat(this.y, 2);
}
},
legend: {
enabled: false
},
exporting: {
enabled: false
},
series: [{
name: 'Random data',
data: (function () {
// generate an array of random data
var data = [],
time = (new Date()).getTime(),
i;
for (i = -19; i <= 0; i += 1) {
data.push({
x: time + i * 1000,
y: Math.random()
});
}
return data;
}())
}]
});
});
});
</script>
and the html code
<div id="container" style="width:100%; height:400px;"></div>
Any suggestions how to display the graph?
Thanks in advance.

I think the problem is with the syntax you are creating the chart with: $('#container').highcharts...
It seems highcharts function is not defined using laravel.
There is another way that you can try:
var chart = new Highcharts.Chart({
chart: {
renderTo: 'container',
...
},
...
});

How to pass JSP array to Javascript of highchart to generate a column chart

I am a novice in Highcharts, JSP and Javascript and need your input and suggestion on the issue, I have been struggling since 4-5 days. Please help me.
The issue is I am able to get the 2 output arrays from JSP that I need to pass in the highchart JS for generate a column graph.
[99, 90, 87, 82, 80, 77, 70, 65, 65, 60] and
['orcl2','orcl2','orcl2','orcl2','orcl1','orcl1','orcl3','orcl2','orcl3','orcl1']
But I am not able to pass the value to the JS to generate the column graph. Following is the entire code that I am using. Please suggest me where I am going wrong.
<%# page language="java" import="java.sql.*, java.io.*, java.util.Date, java.util.*,javax.servlet.*, java.text.SimpleDateFormat, java.util.Calendar " %>
<% Class.forName("oracle.jdbc.driver.OracleDriver"); %>
<%
Connection connection=DriverManager.getConnection ("jdbc:oracle:thin:#RAC1.dinu.com:1521:orcl2","cog","cog123");
Statement statement12 = connection.createStatement();
ResultSet resultset12 =
statement12.executeQuery("select * from(select HOST_NAME,INSTANCE_NAME,PID,PCPU, to_char(TIME, 'yyyy-mm-dd hh24:mi:ss') from ORA_CPU_STATUS where trunc(TIME)=trunc(sysdate) order by PCPU desc) where rownum<=10");
%>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Highcharts Example</title>
<script type="text/javascript" src="/DBdashboard/1.js"></script>
<script type="text/javascript" src="/DBdashboard/2a.js"></script>
<script type="text/javascript" src="/DBdashboard/3a.js"></script>
<script type="text/javascript" src="/DBdashboard/highcharts-more.js"></script>
<script type="text/javascript" src="/DBdashboard/json2.js"></script>
<script>
$(function () {
var chart;
<%
List<String> list = new ArrayList<String>();
List<String> list2 = new ArrayList<String>();
while(resultset12.next())
{
String val = resultset12.getString(1);
list.add(val);
String val2 = resultset12.getString(2);
list2.add(val2);
String csv = list2.toString().replace("[", "").replace("]", "");
String csvWithQuote = list.toString().replace("[", "'").replace("]", "'").replace(", ", "','");
%>
var dincpu = '<%=csv%>';
var dinpcat = '<%=csvWithQuote%>';
var input = JSON.parse("[" + dincpu + "]"),
data = [],
categories = JSON.parse("[" + dinpcat + "]");
$.each(input, function(index, value){
var color;
if (value > 80) color = 'red';
else if (value > 60) color = 'Orange';
else color = 'green';
data.push({y:value, color: color, url:'https://www.google.com'});
});
$(document).ready(function() {
chart = new Highcharts.Chart({
chart: {
renderTo: 'COL',
type: 'column'
},
title: {
text: 'Current Top 10 CPU Consumers',
style: {fontSize: '10px'}
},
xAxis: {
categories: categories,
labels: {
rotation: -35,
align: 'center'
}
},
yAxis: {
title: {
text: 'Percentage',
style: {fontSize: '11px'}
}
},
exporting: { enabled: false },
legend: {
enabled: false,
},
tooltip: {
formatter: function() {
return '<b>'+ this.x +'</b>' +'- Oracle User Process CPU Consumed :'+'<b>'+ this.y +' % ' +'</b>' ;
}
},
plotOptions: {
series: {
cursor: 'pointer',
point: {
events: {
click: function() {
location.href = this.options.url;
}
}
}
}
},
series: [{
name: 'CPU Consumed',
pointWidth: 28,
data: data
}]
});
});
});
</script>
</head>
<body>
<div id="COL" style="min-width: 100px; height: 300px; margin: 0 auto"></div>
</body>
</html>
Thanks in Advance...

I'm not really sure where you're going with this code
String csv = list2.toString().replace("[", "").replace("]", "");
String csvWithQuote = list.toString().replace("[", "'").replace("]", "'").replace(", ", "','");
%>
var dincpu = '<%=csv%>';
var dinpcat = '<%=csvWithQuote%>';
var input = JSON.parse("[" + dincpu + "]"),
data = [],
categories = JSON.parse("[" + dinpcat + "]");
If you have your data in this format:
[99, 90, 87, 82, 80, 77, 70, 65, 65, 60] and
['orcl2','orcl2','orcl2','orcl2','orcl1','orcl1','orcl3','orcl2','orcl3','orcl1']
Why not do this (remove the 's and get rid of the JSON.parse)?
var dincpu = <%=csv%>;
var dinpcat = <%=csvWithQuote%>;
http://jsfiddle.net/VYLTW/

#Barbara,
it worked finally with
var dincpu = <%=csv%>;
var dinpcat = <%=csvWithQuote%>;
along with the fiddle that you gave http://jsfiddle.net/VYLTW/ .
I am putting the entire code in Answer that actually worked.
<%# page language="java" import="java.sql.*, java.io.*, java.util.Date, java.util.*,javax.servlet.*, java.text.SimpleDateFormat, java.util.Calendar " %>
<% Class.forName("oracle.jdbc.driver.OracleDriver"); %>
<%
Connection connection=DriverManager.getConnection ("jdbc:oracle:thin:#RAC1.dinu.com:1521:orcl2","cog","cog123");
Statement statement12 = connection.createStatement();
ResultSet resultset12 =
statement12.executeQuery("select * from(select INSTANCE_NAME,PCPU from ORA_CPU_STATUS order by PCPU desc) where rownum<=10");
List<String> list = new ArrayList<String>();
List<String> list2 = new ArrayList<String>();
while(resultset12.next())
{
String val = resultset12.getString(1);
list.add(val);
String val2 = resultset12.getString(2);
list2.add(val2);
}
String csv = list2.toString();
String csvWithQuote = list.toString().replace("[", "['").replace("]", "']").replace(", ", "','");
%>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Highcharts Example</title>
<script type="text/javascript" src="/DBdashboard/1.js"></script>
<script type="text/javascript" src="/DBdashboard/2a.js"></script>
<script type="text/javascript" src="/DBdashboard/3a.js"></script>
<script type="text/javascript" src="/DBdashboard/highcharts-more.js"></script>
<script type="text/javascript" src="/DBdashboard/json2.js"></script>
<script>
$(function () {
var dincpu=<%=csv%>;
var dinpcat = <%=csvWithQuote%>;
var input = dincpu,
data = [],
categories =dinpcat;
$.each(input, function(index, value){
var color;
if (value > 80) color = 'red';
else if (value > 60) color = 'Orange';
else color = 'green';
data.push({y:value, color: color, url:'https://www.google.com'});
});
chart = new Highcharts.Chart({
chart: {
renderTo: 'COL',
type: 'column'
},
title: {
text: 'Current Top 10 CPU Consumers',
style: {fontSize: '10px'}
},
xAxis: {
categories: categories,
labels: {
rotation: -35,
align: 'center'
}
},
yAxis: {
title: {
text: 'Percentage',
style: {fontSize: '11px'}
}
},
exporting: { enabled: false },
legend: {
enabled: false,
},
tooltip: {
formatter: function() {
return '<b>'+ this.x +'</b>' +'- Oracle User Process CPU Consumed :'+'<b>'+ this.y +' % ' +'</b>' ;
}
},
plotOptions: {
series: {
cursor: 'pointer',
point: {
events: {
click: function() {
location.href = this.options.url;
}
}
}
}
},
series: [{
name: 'CPU Consumed',
pointWidth: 28,
data: data
}]
});
});
</script>
</head>
<body>
<div id="COL" style="min-width: 100px; height: 300px; margin: 0 auto"></div>
</body>
</html>

#Barbara,
1) If you see the latest code I have put all the JSP scriptlet "<% %>" at the top and then called the
var dincpu = <%=csv%>;
var dinpcat = <%=csvWithQuote%>;
After which I could see in view source of the webpage that the values are getting passed to the JS variables in the JS function.
2) Then put the same JS code that you have put in the fiddle.
3) I felt that the function $(document).ready(function() was causing problem which I removed.
And another important thing is that since I was putting all my code in a virtual linux box, there might be some hidden characters thats getting copied while I was coping from windows text editor (Editplus).
I found all those 3 things were responsible for the issue.

Create Line in Highcharts with start and end point

Please look at following example:
<script type="text/javascript">
var $j = jQuery.noConflict();
function recalculateUTCValue(startingUTC, add) {
zeit = new Date(startingUTC);
zeit.setDate(zeit.getDate()+add);
return zeit;
}
function calcDateFromUTC(utc) {
d = new Date(utc);
return d;
}
function getDaysUntilEnd(utc) {
var currentTime = new Date();
var endTime = calcDateFromUTC(utc);
var diff = Math.floor(( Date.parse(endTime) - Date.parse(currentTime) ) / 86400000);
return diff;
}
</script>
<script type="text/javascript">
var highchartsOptions = Highcharts.setOptions(Highcharts.theme);
var TaskChart; // Chart-Objekt
var container = $j('#chart01')[0];
var TaskDuration = new Array();
var startingKW = 298;
// Save starting points to javascript variables for HighCharts
var startingUTC = 1288087223364;
// For a given time point id
var startTimePoint = 0;
var endTimePoint = 0;
TaskDuration = [0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,216.0,216.0,216.0,198.0,134.0,134.0,134.0,171.0,171.0,171.0,149.0,160.5,160.5,160.5];
// Get first value which is not "0"
var firstValue = 0;
for(var i = 0; i < TaskDuration.length; i++) {
if(TaskDuration[i] != 0) {
firstValue = i;
break;
}
}
// Get largest Y-Value; need for automatically zooming (setExtremes method)
var largest = Math.max.apply(Math, TaskDuration);
var myStartDate;
var myEndDate;
// Check if we have a time point in the query
if(startTimePoint != 0) {
var myStartDate = calcDateFromUTC(startTimePoint);
var myEndDate = calcDateFromUTC(endTimePoint);
} else {
// Otherwise we use the time of first created work item
var myStartDate = recalculateUTCValue(startingUTC, firstValue);
var myEndDate = new Date();
}
</script>
<script type="text/javascript">
$j(document).ready(function() {
TaskChart = new Highcharts.Chart({
credits: {
enabled: false
},
chart: {
renderTo: "chart01",
defaultSeriesType: 'line',
zoomType: 'x',
events: {
load: function(event) {
this.xAxis[0].setExtremes(myStartDate, myEndDate);
this.yAxis[0].setExtremes(0,largest);
}
}
},
title: {
text: "Task Burn Down Chart"
},
xAxis: {
type: 'datetime',
dateTimeLabelFormats: {
week: '%e. %b %Y'
},
labels: {
align: 'right',
rotation: -60,
x: 5,
y: 15
},
offset: 10
},
yAxis: {
title: {
text: "Number of Hours"
}
},
tooltip: {
formatter: function() {
return '<b>'+ this.series.name +'</b><br/>' + Highcharts.dateFormat('%d.%m', this.x) +': '+ this.y;;
}
},
plotOptions: {
area: {
stacking: 'normal',
lineColor: '#666666',
lineWidth: 1,
marker: {
lineWidth: 1,
lineColor: '#666666'
}
}
},
series: [
{
name: 'Hours',
pointStart: startingUTC,
pointInterval: 24*60*60*1000,
data: TaskDuration
},
{
type: 'line',
name: 'Regression Line',
data: [[myStartDate, 216], [myEndDate, 50]],
marker: {
enabled: false
},
states: {
hover: {
lineWidth: 0
}
},
enableMouseTracking: false
}]
});
});
</script>
http://jsfiddle.net/JwmuT/8/
The goal is to create a Highchart line with starting point from X-Value 26th January and with the end point on the X-Value 7th February. Corresponding Y-Values are "260" and "0".
How to create a simple line with these to points in HighCharts? Maybe Highcharts is able to do a linear regression on the fly?!
I have found this demo but I do not know how to pass correctly X-Values in the Date format.

Highcharts doesn't calculate any type of regression or trend lines. In example you have posted, data is calculated before, and Highcharts just displays that. However there is known plugin for trendline: https://github.com/virtualstaticvoid/highcharts_trendline

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