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hi i want charting stock data in web page.
i found sample project in github
https://github.com/tvjsx/tvjs-xp
i change code and connect the binance and receive and charting real time data.
i have some problem after add online receive data chart lagend bouttun not work and i cant add layer.
please help me.
thanks
<trading-vue :data="dc" :width="this.width" :height="this.height"
title-txt="TVJS XP" :key="resetkey"
:chart-config="{DEFAULT_LEN:70}"
ref="tvjs"
:legend-buttons="['display', 'settings', 'up', 'down', 'add', 'remove']"
:toolbar="true"
:index-based="index_based"
:color-back="colors.colorBack"
:color-grid="colors.colorGrid"
:color-text="colors.colorText"
:extensions="ext"
:overlays="ovs"
:x-settings="xsett">
</trading-vue>
<span class="gc-mode">
<input type="checkbox" v-model="index_based">
<label>Index Based</label>
</span>
export default {
name: 'DataHelper',
icon: '⚡',
description: 'Real-time updates. Play with DataCube in the console',
props: ['night', 'ext', 'resetkey'],
components: {
TradingVue
},
mounted() {
window.addEventListener('resize', this.onResize)
this.onResize()
// Load the last data chunk & init DataCube:
let now = Utils.now()
this.load_chunk([now - Const.HOUR4, now]).then(data => {
this.dc = new DataCube({
ohlcv: data['dc.data'],
// onchart: [{
// type: 'EMAx6',
// name: 'Multiple EMA',
// data: []
// }],
offchart: [
// {
// type: 'BuySellBalance',
// name: 'Buy/Sell Balance, $lookback',
// data: [],
// settings: {}
// },
{
name: "RSI, 20",
type: "Range",
data: [],
settings: {
"upper": 70,
"lower": 30,
"backColor": "#9b9ba316",
"bandColor": "#666"
}
},
],
datasets: [{
type: 'Trades',
id: 'binance-btcusdt',
data: []
}]
}, { aggregation: 100 })
// Register onrange callback & And a stream of trades
this.dc.onrange(this.load_chunk)
this.$refs.tvjs.resetChart()
this.stream = new Stream(WSS)
this.stream.ontrades = this.on_trades
window.dc = this.dc // Debug
window.tv = this.$refs.tvjs // Debug
})
},
methods: {
onResize(event) {
this.width = window.innerWidth
this.height = window.innerHeight - 50
},
// New data handler. Should return Promise, or
// use callback: load_chunk(range, tf, callback)
async load_chunk(range) {
let [t1, t2] = range
let x = 'BTCUSDT'
let q = `${x}&interval=1m&startTime=${t1}&endTime=${t2}`
let r = await fetch(URL + q).then(r => r.json())
return this.format(this.parse_binance(r))
},
// Parse a specific exchange format
parse_binance(data) {
if (!Array.isArray(data)) return []
return data.map(x => {
for (var i = 0; i < x.length; i++) {
x[i] = parseFloat(x[i])
}
return x.slice(0,6)
})
},
format(data) {
// Each query sets data to a corresponding overlay
return {
'dc.data': data
// other onchart/offchart overlays can be added here,
// but we are using Script Engine to calculate some:
// see EMAx6 & BuySellBalance
}
},
on_trades(trade) {
this.dc.update({
t: trade.T, // Exchange time (optional)
price: parseFloat(trade.p), // Trade price
volume: parseFloat(trade.q), // Trade amount
'datasets.binance-btcusdt': [ // Update dataset
trade.T,
trade.m ? 0 : 1, // Sell or Buy
parseFloat(trade.q),
parseFloat(trade.p)
],
// ... other onchart/offchart updates
})
}
},
beforeDestroy() {
window.removeEventListener('resize', this.onResize)
if (this.stream) this.stream.off()
},
computed: {
colors() {
return this.$props.night ? {} : {
colorBack: '#fff',
colorGrid: '#eee',
colorText: '#333'
}
},
},
data() {
return {
dc: {},
width: window.innerWidth,
height: window.innerHeight,
index_based: false,
xsett: {
'grid-resize': { min_height: 30 }
},
ovs: Object.values(Overlays),
}
}
}
I have one Json with multiple array and foreach array I want to create Pie chart, but I don't know how to do it.
This is the array thet I have. And this is what I tried :
function Pie() {
$.getJSON("/Admin/Attivita/OreOggi", function (data) {
console.log(data);
var oreTecico = [];
var oreTecico = [];
var oreMalatia = [];
var oreStraordinario = [];
var oreInfortunio = [];
var oreFerie = [];
for (var i = 0; i < data.length; i++) {
nomeTecnico.push(data[i].nome);
oreTecico.push(data[i].odinario);
oreMalatia.push(data[i].malatia);
oreStraordinario.push(data[i].straordinario);
oreInfortunio.push(data[i].infortunio);
oreFerie.push(data[i].ferie);
};
// Build the chart
Highcharts.chart('zdravko', {
chart: {
plotBackgroundColor: null,
plotBorderWidth: null,
plotShadow: false,
type: 'pie'
},
title: {
text: 'Ore segnate oggi'
},
tooltip: {
pointFormat: '<b>{point.name}</b>: {point.y:.1f} h.'
},
accessibility: {
point: {
valueSuffix: '%'
}
},
plotOptions: {
pie: {
allowPointSelect: true,
cursor: 'pointer',
dataLabels: {
enabled: false
},
showInLegend: true
}
},
series: [{
name: nomeTecnico[0],
colorByPoint: true,
data: [{
name: '',
y:0,
sliced: true,
selected: true
}, {
name: 'Odinario',
y: oreTecico[0]
}, {
name: 'Malatia',
y: oreMalatia[0]
}, {
name: 'Straordinario',
y: oreStraordinario[0]
}, {
name: 'Infortunio',
y: oreInfortunio[0]
}, {
name: 'Ferie',
y: oreFerie[0]
}]
}]
});
});
}
It shows only the last "data". I want to make fo each array one pie. If i have 100 arrays I want 100 pies.
UPDATE:
I added this :
data.forEach(function (el) {
var chartData = [el.data1, el.data2];
var chartContainer = document.createElement('div');
document.getElementById('zdravko').append(chartContainer);
Highcharts.chart(chartContainer, {
series: [{
type: 'pie',
data: chartData
}]
});
});
The chartData is array of undefined objects.
Is it possible to make for or foreach inside Highcharts?
You need to use the Highcharts.chart method in a loop, for example:
var data = [{
data1: 12,
data2: 25
}, {
data1: 67,
data2: 11
}];
data.forEach(function(el) {
var chartData = [el.data1, el.data2];
var chartContainer = document.createElement('div');
document.getElementById('container').append(chartContainer);
Highcharts.chart(chartContainer, {
series: [{
type: 'pie',
data: chartData
}]
});
});
Live demo: http://jsfiddle.net/BlackLabel/x95pbw7j/
API Reference: https://api.highcharts.com/class-reference/Highcharts#.chart
I have some problems rendering some data from a JSON in my apexchart series.
Here is the example of my chart with the data that I want to be in my JSON, and i don't know how to write it.
var _seed = 42;
Math.random = function() {
_seed = _seed * 16807 % 2147483647;
return (_seed - 1) / 2147483646;
};
var options = {
series: [{
name: "Q",
data: [0, 4800, 9500, null],
},
{
name: "Q - 1",
data: [0, 6500, 12000, 16000]
},{
name: "Q Target",
data: [15500, 15500, 15500, 15500]
},
],
chart: {
height: 350,
type: 'line',
zoom: {
enabled: false
}
},
dataLabels: {
enabled: false
},
stroke: {
curve: 'straight'
},
title: {
text: 'Clicks',
align: 'left'
},
grid: {
row: {
colors: ['#f3f3f3', 'transparent'], // takes an array which will be repeated on columns
opacity: 0.5
},
},
xaxis: {
categories: [' ', 'Month1', 'Month2', 'Month3'],
}
};
var chart = new ApexCharts(document.querySelector("#chart"), options);
chart.render();
#chart {
max-width: 450px;
margin: 35px auto;
}
<script src="https://cdn.jsdelivr.net/npm/promise-polyfill#8/dist/polyfill.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/eligrey-classlist-js-polyfill"></script>
<script src="https://cdn.jsdelivr.net/npm/findindex_polyfill_mdn"></script>
<script src="https://cdn.jsdelivr.net/npm/es6-promise#4/dist/es6-promise.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/es6-promise#4/dist/es6-promise.auto.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/apexcharts"></script>
<div id="chart"></div>
If someone could give me a hint, is kindly appreciated.
The JSON looks like this , for retrieving data for the apexchart
{
"data_clicks":[
{
"name":"Q",
"data":[
{
"x":" ",
"y":0
},
{
"x":"Month1",
"y":2400
},
{
"x":"Month2",
"y":5200
},
{
"x":"Month3",
"y":null
}
]
},
{
"name":"Q - 1",
"data":[
{
"x":" ",
"y":0
},
{
"x":"Month1",
"y":1800
},
{
"x":"Month2",
"y":7150
},
{
"x":"Month3",
"y":10200
}
]
},
{
"name":"Q Target",
"data":[
{
"x":" ",
"y":11000
},
{
"x":"Month1",
"y":11000
},
{
"x":"Month2",
"y":11000
},
{
"x":"Month3",
"y":11000
}
]
}
],
I have an array of data that I'm using to plot a Line Chart. I'm using ApexCharts.
let testData = [
{
cell_id: 5833307,
datetime: ["2019-05-07 11:28:16.406795+03", "2019-05-07 11:28:38.764628+03", "2019-05-07 12:18:38.21369+03", "2019-05-07 12:33:47.889552+03", "2019-05-08 08:45:51.154047+03"],
rsrq: ["108", "108", "108", "108", "109"]
},
{
cell_id: 2656007,
datetime: ["2019-07-23 15:29:16.572813+03", "2019-07-23 15:29:16.71938+03", "2019-07-23 15:29:16.781606+03", "2019-07-23 15:29:50.375931+03", "2019-07-23 15:30:01.902013+03"],
rsrq: ["120", "119", "116", "134", "114"]
}
];
let datasetValue = [];
for( let x=0; x<testData.length; x++ )
{
datasetValue =
{
chart: {
height: 380,
width: "100%",
type: "line"
},
stroke: {
curve: 'smooth',
width: 1.5,
},
markers: {
size: 4,
},
legend: {
show: true,
position: 'top'
},
series: [
{
name: testData[x].cell_id,
data: testData[x].rsrq
}
],
xaxis: {
categories: testData[x].datetime,
title: {
text: "Date"
}
},
yaxis: {
title: {
text: "RSSI"
}
}
}
}
var chart = new ApexCharts(document.querySelector("#signal"), datasetValue);
chart.render();
<div id="signal"></div>
<script src="https://cdn.jsdelivr.net/npm/apexcharts"></script>
So I take my JSON array, loop it in a for loop to obtain my datasets. I define an array variable datasetValue which i assign the looped data and pass it to my chart instance: new ApexCharts(document.querySelector("#rssi-signal"), datasetValue);
What is happening is only the last array object is being passed meaning there's something I'm missing/not passing to get all my data.
Restructure the testData by grouping series and categories
let series = [];
let categories = [];
for (let x = 0; x < testData.length; x++) {
series.push({
name: testData[x].cell_id,
data: testData[x].rsrq
});
categories.concat(testData[x].datetime);
}
let testData = [{
cell_id: 5833307,
datetime: ["2019-05-07 11:28:16.406795+03", "2019-05-07 11:28:38.764628+03", "2019-05-07 12:18:38.21369+03", "2019-05-07 12:33:47.889552+03", "2019-05-08 08:45:51.154047+03"],
rsrq: ["108", "108", "108", "108", "109"]
},
{
cell_id: 2656007,
datetime: ["2019-07-23 15:29:16.572813+03", "2019-07-23 15:29:16.71938+03", "2019-07-23 15:29:16.781606+03", "2019-07-23 15:29:50.375931+03", "2019-07-23 15:30:01.902013+03"],
rsrq: ["120", "119", "116", "134", "114"]
}
];
let series = [];
let categories = [];
for (let x = 0; x < testData.length; x++) {
series.push({
name: testData[x].cell_id,
data: testData[x].rsrq
});
categories = categories.concat(testData[x].datetime);
}
var chart = new ApexCharts(document.querySelector("#signal"), {
chart: {
height: 380,
width: "100%",
type: "line"
},
stroke: {
curve: 'smooth',
width: 1.5,
},
markers: {
size: 4,
},
legend: {
show: true,
position: 'top'
},
series: series,
xaxis: {
categories: categories,
title: {
text: "Date"
}
},
yaxis: {
title: {
text: "RSSI"
}
}
});
chart.render();
<div id="signal"></div>
<script src="https://cdn.jsdelivr.net/npm/apexcharts"></script>
Since you are declaring an array outside the forloop
let datasetValue = {
chart: {
height: 380,
width: "100%",
type: "line"
},
stroke: {
curve: 'smooth',
width: 1.5,
},
markers: {
size: 4,
},
legend: {
show: true,
position: 'top'
},
series: [],
xaxis: {
categories: [],
title: {
text: "Date"
}
},
yaxis: {
title: {
text: "RSSI"
}
}
};
Inside for loop you should do
datasetValue.series.push(
{
name: testData[x].cell_id,
data: testData[x].rsrq
});
datasetValue.xaxis.categories.push(testData[x].datetime);
You should push the value inside the array instead of reassigning it in each iteration
The first mistake you are trying to do is defining the "datasetValue" as an array variable.
datasetValue = yourdata; //wrong in case of pushing data into array
You are trying to assign an object to array variable that contains only last results due to looping and assignment.
Instead, use push method of array to push the data into an array.
datasetValue.push(yourdata); //correct way to push data to array
So, there is no use to define "datasetValue" as array.
To achieve your objective you can apply loop with following
var datasetValue;
var series = [];
var categories = [];
for(let x=0; x<testData.length;x++) {
series.push({
name: testData[x].cell_id,
data: testData[x].rsrq
});
categories.concat(testData[x].datetime);
}
datasetValue = {
chart: {
height: 380,
width: "100%",
type: "line"
},
stroke: {
curve: 'smooth',
width: 1.5,
},
markers: {
size: 4,
},
legend: {
show: true,
position: 'top'
},
series,
xaxis: {
categories,
title: {
text: "Date"
}
},
yaxis: {
title: {
text: "RSSI"
}
}
};
var chart = new ApexCharts(document.querySelector("#signal"), datasetValue);
chart.render();
I move your for loop after datasetValue definition to add only series to it, and also change xaxis
for( let x=0; x<testData.length; x++ )
{
datasetValue.series.push({
name: testData[x].cell_id,
data: testData[x].rsrq
})
}
let testData = [
{
cell_id: 5833307,
datetime: ["2019-05-07 11:28:16.406795+03", "2019-05-07 11:28:38.764628+03", "2019-05-07 12:18:38.21369+03", "2019-05-07 12:33:47.889552+03", "2019-05-08 08:45:51.154047+03"],
rsrq: ["108", "108", "108", "108", "109"]
},
{
cell_id: 2656007,
datetime: ["2019-07-23 15:29:16.572813+03", "2019-07-23 15:29:16.71938+03", "2019-07-23 15:29:16.781606+03", "2019-07-23 15:29:50.375931+03", "2019-07-23 15:30:01.902013+03"],
rsrq: ["120", "119", "116", "134", "114"]
}
];
let datasetValue =
{
chart: {
height: 380,
width: "100%",
type: "line"
},
stroke: {
curve: 'smooth',
width: 1.5,
},
markers: {
size: 4,
},
legend: {
show: true,
position: 'top'
},
series: [
],
xaxis: {
categories: testData[0].datetime,
title: {
text: "Date"
}
},
yaxis: {
title: {
text: "RSSI"
}
}
}
for( let x=0; x<testData.length; x++ )
{
datasetValue.series.push({
name: testData[x].cell_id,
data: testData[x].rsrq
})
}
var chart = new ApexCharts(document.querySelector("#signal"), datasetValue);
chart.render();
<div id="signal"></div>
<script src="https://cdn.jsdelivr.net/npm/apexcharts"></script>
I want to create a combination chart (line and bar) for same json data so that the line touches the all the bars since datapoints are same.
Here is the code
var graphdata=[
{ 'indicator': 'X', 'total': 100 },
{ 'indicator': 'Y', 'total': 200 },
{ 'indicator': 'Z', 'total': 300 }
];
var g1=[
{ 'indicator': 'X', 'total': 150 },
{ 'indicator': 'Y', 'total': 220 },
{ 'indicator': 'Z', 'total': 330 }
];
setTimeout(function () {
chart.load({
data: {
type: 'line',
json: g1,
keys: {
x: 'indicator',
value: ['total']
},
},
axis: {
x: {
type: 'category'
}
},
});
}, 1000);
var chart = c3.generate({
data: {
type: 'bar',
json: graphdata,
keys: {
x: 'indicator',
value: ['total']
},
},
axis: {
x: {
type: 'category'
}
},
bar: {
width: {
ratio: 0.5
}
}
});
The output of this is only bar chart,the line chart is not loading.
try this code
var data = [
{ 'date': '2015-01-01', 'Dept': null, 'SMV': 3},
{ 'date': '2015-01-02', 'Dept': 1, 'SMV': 4}
];
Example You separated all the date, the Dept and the SMV data into separate arrays. The way to go here is the following: The data should contain one array of several arrays. The first argument is defined as the key of the dataset. An example dataset looks then like this:
var data = [
['date', '2015-01-01', 2015-01-02'],
['Dept', null, 1],
['SMV', 3, 4]
];
Try the simple code below, you can use a simple JSON file as shown below.
var graphdata={data1:[100,200,300],data2:[150,220,330]};
var chart = c3.generate({
data: {
types: {data1:'spline',
data2:'bar'
},
json: graphdata,
},
bar: {
width: {
ratio: 0.5
}
}
});
For more details you can try http://c3js.org/samples/chart_combination.html .