I would like to dynamically set the endrow object based on user input in highcharts. A user would select from a list control between the values 5, 10, 25 and all and I would like to pass that value to the data.endrow property. Thoughts?
data: {
csv: document.getElementById('csv').innerHTML,
startRow: 0,
endRow: <userinput>
endColumn: 1,
firstRowAsNames: false
},
You can make your chart after you will click on submit button. You can check selected value inside your list and pass it to chart options:
$('.submit').click(function() {
var dropMenu = $('#drop'),
selectedIndex = dropMenu[0].options.selectedIndex,
stringVal = $(dropMenu)[0].options[selectedIndex].value,
value = parseInt(stringVal);
if (stringVal === 'All') {
var lines = document.getElementById('csv').innerHTML.split('\n');
value = lines.length - 1;
}
});
Then you can make a chart with new endRow parameter:
$('#container').highcharts({
title: {
text: 'Global temperature change'
},
subtitle: {
text: 'Data module: Show only last 20 years by limiting start row.'
},
data: {
csv: document.getElementById('csv').innerHTML,
startRow: 1,
endRow: value,
endColumn: 1,
firstRowAsNames: false
},
xAxis: {
allowDecimals: false
},
series: [{
name: 'Annual mean'
}]
});
example: http://jsfiddle.net/jpko073c/3/
Related
So, What I have is a condition in a MySQL to show the first 1000 data points first and then the other 2000 datapoints after that in Highcharts.
if lastindex==0:
cur.execute("SELECT data,value FROM table where id<1001")
else:
cur.execute("SELECT data,value FROM table where id>1001 and id<3000")
data = cur.fetchall()
//python Code to fetch SQL data
Now what I am doing is that I am rendering that data into the Highcharts, the data is being rendered. but the problem arises that after showing the first 1000 data points, the Highcharts value starts from 0 and then shows the other 2000 points
the data is not displaying continuously as it should plot the send array data just after the end of the first data.
I think the Highcharts is being called Twice, What can I do to append the 2nd set of data to the first set without reloading the whole chart.
Here's a snip of my Highchart's js
Highcharts.chart("chartcontainer", {
chart: {
type: 'line',
animation: Highcharts.svg, // don't animate in old IE
marginRight: 10,
events: {
load: function() {
var series = this.series[0],
chart = this;
setInterval(function() {
//some logic regarding the chart
//..
v = {
y: y,
x: x
};
console.log("V value", v);
series.addSeries(v, false, true);
counter++;
localcounter++;
} else
{
oldcounter=counter;
flagToreload=1;
}
}, 1000/130);
setInterval(function() {
chart.redraw(false);
}, 100);
}
}
},
time: {
useUTC: false
},
title: {
text: 'Live random data'
},
xAxis: {
type: 'Value',
gridLineWidth: 1
},
yAxis: {
title: {
text: 'Value'
},
plotLines: [{
value: 0,
width: 1,
color: '#808080'
}],
gridLineWidth: 1
},
tooltip: {
headerFormat: '<b>{series.name}</b><br/>',
pointFormat: '{point.x:%Y-%m-%d %H:%M:%S}<br/>{point.y:.2f}'
},
exporting: {
enabled: false
},
series: [{
animation: false,
name: 'Random data',
data: (function() {
// generate an array of random data
var data = [],
time = counter,
i;
for (i = -1000; i <= 0; i += 1) {
data.push([
counter,
null
]);
}
return data;
}())
}]
});
What I want is just to append the event data rather than loading the whole chart.
How can I reload a particular Highchart value without reloading the whole chart ?
What do you think about updating the current series with new data, which will be an array of old data merged with the new one?
chart: {
events: {
load(){
let chart = this,
currentSeries = chart.series[0],
newData;
newData = [...currentSeries.userOptions.data, ...data1]
setTimeout(()=> {
chart.series[0].update({
data: newData
})
}, 5000)
}
}
},
See the demo
I am trying to display a set of dynamic data in a spline type chart using highcharts.
My spline type line chart has 4 series of data that needs to update through a service call. Service returns an array of data such as [0.345, 0.465, 0, 0.453] and I want to update y value of each series with the respective value in the array.
But my chart does not draw the data as expected. Even if I receive different values for y, in the chart it always displays it as 0.
This is my source code. Greatly appreciate if someone could help me figure out the issue in this or a give solution to this problem.
function drawHighChart() {
hchart = Highcharts.chart('container', {
chart: {
type: 'spline',
animation: Highcharts.svg,
marginRight: 10,
},
time: {
useUTC: false
},
title: {
text: 'Audio Analytics'
},
xAxis: {
tickInterval: 1,
},
yAxis: {
title: {
text: 'Prediction'
},
min: 0,
max: 1,
tickInterval: 0.5,
plotLines: [{
value: 0,
width: 1,
color: '#808080'
}]
},
tooltip: {
headerFormat: '<b>{series.name}</b><br/>',
pointFormat: '{point.x:%Y-%m-%d %H:%M:%S}<br/>{point.y:.2f}'
},
legend: {
enabled: false
},
exporting: {
enabled: false
},
/* Initially I'm setting some hardcoded values for each series.*/
series: [{
name: 'Calm',
data: [0.43934, 0.52503, 0.57177, 0.69658, 0.97031, 0.119931, 0.137133]
}, {
name: 'Happy',
data: [0.24916, 0.24064, 0.29742, 0.0000, 0.32490, 0.0000, 0.38121]
}, {
name: 'Angry',
data: [0.11744, 0.17722, 0.16005, 0.19771, 0.20185, 0.24377, 0.32147]
}, {
name: 'Disgust',
data: [0.7988, 0.15112, null, 0.22452, 0.34400, null, 0.34227]
}],
});
}
Now when I call drawHighChart() at the windows onload this is what it outputs.
Now from here, I need to update each series dynamically as service returns a data array.
This is my function that updates the chart dynamically every time the service returns a response. Every time I call this fucntion, I pass a data array constructed from the response data.
initiVal = 7; //This is a gloabl variable that increases x-axis value from 7.
function updateHighChart(dataArray) {
var series = hchart.series[0];
var series1 = hchart.series[1];
var series2 = hchart.series[2];
var series3 = hchart.series[3];
var x = initiVal;
y = dataArray[0];
y1 = dataArray[1];
y2 = dataArray[2];
y3 = dataArray[3];
console.log("dataArray: " + dataArray);
series.addPoint([x, y], true, true);
series1.addPoint([x, y1], true, true);
series2.addPoint([x, y2], true, true);
series3.addPoint([x, y3], true, true);
initiVal++;
}
But even if data is dynamically assigned to y axis values in each series, they do not update as expected in the chart. This is how the charts looks after the 6th second/instance when data needs to dynamically update in the chart.
1) I am wondering how I can remove the date picker from the right side of the chart? I really only need the left rangeSelector buttons i.e. 24 hours, 6 hours...
2) is there anyway to turn off the dataLabels when you click on one of the rangeSelector options as well?
When zoomed in to show 5 minutes worth of data the dataLabels are handy, but when looking at 24 hours worth they make the chart quite unusable due to crowding. It would be nice if they could be automagically turned off when I zoomed out.
Huge thanks for your help, if this is indeed possible.
For the second option, i'm looking to toggle the visibility of
plotOptions:{series: {
dataLabels:{
enabled:true,
Fiddle Link
After customization of range selector from Highstock Example
/**
* Load new data depending on the selected min and max
*/
function afterSetExtremes(e) {
var chart = Highcharts.charts[0];
chart.showLoading('Loading data from server...');
$.getJSON('https://www.highcharts.com/samples/data/from-sql.php?start=' + Math.round(e.min) +
'&end=' + Math.round(e.max) + '&callback=?', function (data) {
chart.series[0].setData(data);
chart.hideLoading();
});
}
// See source code from the JSONP handler at https://github.com/highcharts/highcharts/blob/master/samples/data/from-sql.php
$.getJSON('https://www.highcharts.com/samples/data/from-sql.php?callback=?', function (data) {
// Add a null value for the end date
data = [].concat(data, [[Date.UTC(2011, 9, 14, 19, 59), null, null, null, null]]);
// create the chart
Highcharts.stockChart('container', {
chart: {
type: 'candlestick',
zoomType: 'x'
},
navigator: {
adaptToUpdatedData: false,
series: {
data: data
}
},
scrollbar: {
liveRedraw: false
},
title: {
text: 'AAPL history by the minute from 1998 to 2011'
},
subtitle: {
text: 'Displaying 1.7 million data points in Highcharts Stock by async server loading'
},
rangeSelector: {
buttons: [{ //customization of buttons
type: 'hour',
count: 24,
text: '24h'
}, {
type: 'hour',
count: 6,
text: '6h'
}, {
type: 'minute',
count: 5,
text: '5m'
}],
inputEnabled: false, // it remove datepicker
},
xAxis: {
events: {
afterSetExtremes: afterSetExtremes,
setExtremes: function(e) {
if(typeof(e.rangeSelectorButton)!== 'undefined')
{
if(e.rangeSelectorButton.text=='5m'){
addlables(); //function to add data label
}else{
removelables(); // function to remove data lable
}
}
}
},
minRange: 300 * 1000 // 5min * 1000
},
yAxis: {
floor: 0
},
plotOptions:{
series: {
dataLabels:{
enabled:false,
}
}
},
series: [{
data: data,
dataGrouping: {
enabled: false
}
}]
});
});
function removelables(){
var chart = $('#container').highcharts();
var opt = chart.series[0].options;
opt.dataLabels.enabled = false;
chart.series[0].update(opt);
}
function addlables(){
var chart = $('#container').highcharts();
var opt = chart.series[0].options;
opt.dataLabels.enabled = true;
chart.series[0].update(opt);
}
I'm using Highcharts, and I used to be able to get labels on the side. But it's not working now, am I missing something? The red arrow is where I would want the labels like in the following example.
http://jsfiddle.net/gh/get/jquery/1.9.1/highslide-software/highcharts.com/tree/master/samples/highcharts/demo/bar-basic/
This is the code I'm using, I add the series in a dynamic way.
credits: {
enabled: false
},
chart: {
type: 'bar'
},
xAxis: {
categories: ['Jan', 'Feb'],
labels: {
enabled: true,
}
},
yAxis: {
min: 0,
max: 100,
title: {
text: 'Score',
align: 'high'
}
},
plotOptions: {
bar: {
dataLabels: {
enabled: true
}
}
}
});
// Add Series
var detailchart = $('#chart-detail').highcharts();
var categories = new Array;
// Set Chart Title
detailchart.setTitle({text: results[0].category});
$.each(results, function(i, data){
categories.push(data.name);
detailchart.addSeries({
name: data.name,
data: [data.score]
});
});
detailchart.xAxis[0].setCategories(["1", "2"]);
$('#chart-detail').highcharts().reflow();
Results is an array that looks like this (I get it through ajax):
As I understand from your code here, you wish to specify two categories with names 1 and 2 but you are not specifying any data for second category, So the only category that is showing on your chart is 1. Your data array for each series must have elements per each category. For example if you have two category you should consider having two data elements in each series. In this line data: [data.score] you are just specifying one element in data array. Your code should be something like this: (make it dynamic per your need)
$.each(results, function(i, data){
categories.push(data.name);
detailchart.addSeries({
name: data.name,
data: [data.score, 40], //40 is some data for your second category.
});
});
Demo: http://jsfiddle.net/u6crkatv/
Only what you need is use 4 series, each of them with single data point.
series: [{
name: 'Year 1800',
data: [107]
}, {
name: 'Year 1900',
data: [138]
}, {
name: 'Year 2008',
data: [973]
},{
name: 'Year 20098',
data: [973]
}]
Example: http://jsfiddle.net/y9wzggc4/
I am using highstocks and I am wondering if there is anyway I can plot the y values in a column series starting from an arbitrary number. For example. I have a column series called NU (New Users) with its first entry yAxis value of 1,000. Currently, that first entry is plotted on the yAxis from range [0, 1,000]. But instead I would like it to be plotted from [5,000, 6,000].
The reason I want this is because NU is essentially apart of another column called DAU (Daily Active Users), and I want it to be shown up as so. The first entry of the DAU column series has a Y value of 6,000, and 6,000 - 1,000 is 5,000; therefore I would like this entry of NU to start at 5,000.
Here is what I have so far
http://jsfiddle.net/6JACr/2/
I was going to plot DAU as (Original DAU - NU), and stack NU on top of DAU, but that would mean the series holds an incorrect value for DAU.
Here is my code
$(document).ready(function() {
var all_series = [];
var accu_series;
var accu_data = [];
var pccu_series = [];
var pccu_data = [];
var dau_series;
var dau_data = [];
var nu_series;
var nu_data = [];
function draw_charts() {
$('#container').highcharts('StockChart', {
rangeSelector : {
selected : 1,
buttons: [{
type: 'week',
count: 1,
text: '1w'
}, {
type: 'month',
count: 1,
text: '1m'
}, {
type: 'month',
count: 3,
text: '3m'
}, {
type: 'month',
count: 6,
text: '6m'
}, {
type: 'ytd',
text: 'YTD'
}, {
type: 'year',
count: 1,
text: '1y'
}, {
type: 'all',
text: 'All'
}]
},
plotOptions: {
column: {
grouping: false
}
},
yAxis: [{
// Primary Y-Axis
labels:{
align:'right',
x:-10
},
lineWidth : 1,
offset : 0
}, {
// Secondary Y-Axis
opposite: true
}],
series : all_series
});
}
//Function that takes a record and fills the series data with that record
function fill_data(index, record) {
var date = new Date(record['dailyDate']);
var utc_date = Date.UTC(date.getUTCFullYear(), date.getUTCMonth(), date.getUTCDate());
accu_data[index] = [utc_date, parseFloat(record['accu'])];
dau_data[index] = [utc_date, parseFloat(record['dau'])];
nu_data[index] = [utc_date, parseFloat(record['users'])];
}
// //Function that sets up the series data for plotting
function fill_series() {
dau_series = {
name: "DAU",
type: "column",
data: dau_data,
stack: 0
};
all_series[0] = dau_series;
nu_series = {
name: "NU",
type: "column",
data: nu_data,
stack: 0
};
all_series[1] = nu_series;
}
//Pull data from API, format it, and store into the series arrays
(function() {
var result = '[{"accounts":"1668","accu":"568","activePayingRate":"1.97757","activePayingUsers":"854","activeUsers":"4905","area":"1","arpu":"34.6908","company":"45","dailyDate":"2013-08-06","dau":"6000","lost":"87","newUser":"0","paying":"96","payingRate":"1.53724","pccu":"747.0","registration":"572","sales":"3305.01","server":"1","users":"1000"},{"accounts":"1554","accu":"497","activePayingRate":"2.18398","activePayingUsers":"833","activeUsers":"4533","area":"1","arpu":"34.7479","company":"45","dailyDate":"2013-08-07","dau":"5873","lost":"89","newUser":"0","paying":"96","payingRate":"1.68568","pccu":"759.0","registration":"483","sales":"3300.04","server":"1","users":"1209"}]';
var json_result = JSON.parse(result);
$.each(json_result, function(index, record) {
fill_data(index,record);
});
fill_series();
draw_charts();
})();
});
You can use low property for column, for example: http://jsfiddle.net/6JACr/4/
To display proper tooltip, add extra property like val and use pointFormat to display it.
Note: when dataGrouping will be used custom properties are removed, in that case I advice to create your own tooltip formatter, to display what you need.