Vue-google-charts issue with candlesticks - vue.js

I am trying to draw a candlestick chart using vue.js and vue-google-charts.
What I have done works with other charts (line, column, pie...) but not with candlesticks.
What is wrong in the code bellow?
<template>
<GChart
type="CandlestickChart"
:settings="chartsLib"
:data="chartData"
:options="chartOptions"
/>
</template>
<script>
import { GChart } from 'vue-google-charts'
export default {
components: {
GChart
},
data () {
return {
chartsLib: {packages: ['corechart']},
chartData: [
['Mon', 20, 28, 38, 45],
['Tue', 31, 38, 55, 66],
['Wed', 50, 55, 77, 80],
['Thu', 77, 77, 66, 50],
['Fri', 68, 66, 22, 15]
],
chartOptions: {
legend:'none'
}
}
}
}
</script>

when providing the data, you need to include the column headings...
chartData: [
["x", "Low", "Close", "Open", "High"], // <-- column headings
['Mon', 20, 28, 38, 45],
['Tue', 31, 38, 55, 66],
['Wed', 50, 55, 77, 80],
['Thu', 77, 77, 66, 50],
['Fri', 68, 66, 22, 15]
],

Related

I set double YAxis but it doesn't follow the directions(left,right) and datasets

I wanna set double yAxis, so I wrote down the code like below
const data = {
labels: ['a', 'b', 'c', 'd', 'e'],
datasets: [
{
type: 'bar',
label: this.$t('numberOfBuilding'),
data: [100, 20, 30, 5, 5],
backgroundColor: [
'rgba(255, 99, 132, 0.2)',
'rgba(255, 159, 64, 0.2)',
'rgba(255, 205, 86, 0.2)',
'rgba(75, 192, 192, 0.2)',
'rgba(54, 162, 235, 0.2)'
],
borderColor: ['rgb(255, 99, 132)', 'rgb(255, 159, 64)', 'rgb(255, 205, 86)', 'rgb(75, 192, 192)', 'rgb(54, 162, 235)'],
borderWidth: 1,
yAxisId: 'y'
},
// {
// type: 'line',
// fill: true,
// label: this.$t('output') + '(' + this.$t('criteriaMonth') + ')',
// data: [200, 500, 600, 800, 1000],
// borderColor: 'rgba(255, 201, 14, 1)',
// backgroundColor: 'rgba(255, 201, 14, 0.5)',
// lineTension: 0.2,
// yAxisId: 'y1'
// },
{
type: 'line',
fill: true,
label: this.$t('output') + '(' + this.$t('sum') + ')',
data: [300, 100, 700, 249, 588],
borderColor: 'rgba(55, 201, 14, 1)',
backgroundColor: 'rgba(55, 201, 14, 0.5)',
lineTension: 0.2,
yAxisId: 'y1'
}
]
}
const config = {
type: 'scatter',
data: data,
options: {
scales: {
y: {
beginAtZero: true,
position: 'left'
},
y1: {
position: 'right',
grid: {
drawOnChartArea: false
}
}
}
}
}
but it doesn't work properly
yAxis which id is 'y1' is at left and datasets[0] which has 'y' as yAxisId presents with 'y1' axis
it seems like yAxisId doesn't connect well with their own datasets
See the below pictures
[result of above code]
(https://i.stack.imgur.com/0moGR.png)
but my another code is work well I don't know what different it is
here's my another code which works well
const data = {
labels: [
1 + this.$t('month'),
2 + this.$t('month'),
3 + this.$t('month'),
4 + this.$t('month'),
5 + this.$t('month'),
6 + this.$t('month'),
7 + this.$t('month'),
8 + this.$t('month'),
9 + this.$t('month'),
10 + this.$t('month'),
11 + this.$t('month'),
12 + this.$t('month')
],
datasets: [
{
type: 'bar',
label: this.$t('totalConsumption') + '(' + this.unit + ')',
data: this.consumptionData,
borderColor: 'rgb(255, 99, 132)',
backgroundColor: 'rgba(255, 99, 132, 0.2)',
yAxisID: 'y'
},
{
type: 'line',
label: this.$t('temperatureAVG') + '(℃)',
data: this.temperatureData,
fill: false,
borderColor: 'rgb(54, 162, 235)',
yAxisID: 'y1'
}
]
}
const config = {
type: 'scatter',
data: data,
options: {
maintainAspectRatio: false,
scales: {
y: {
beginAtZero: true,
position: 'left'
},
y1: {
position: 'right',
grid: {
drawOnChartArea: false
}
}
}
}
}
In the first code, the option name is wrong. You are using yAxisId but the correct one is yAxisID (as in the second sample), id must be uppercase

Put array in chart data

I use vue3-chart-v2 in my Vue3 app.
I would like to put array instead of predefined numbers.
Can anybody help me?
This is my chart component:
<script>
import { defineComponent } from 'vue'
import { Line } from 'vue3-chart-v2'
export default defineComponent({
name: 'ChanceChart',
extends: Line,
props: {
chartData: {
type: Object,
required: true
},
chartOptions: {
type: Object,
required: false
},
},
mounted () {
this.renderChart(this.chartData, this.chartOptions)
}
})
</script>
And this is how it looks like in the app:
<template>
<Navigation />
<div>
<ChanceChart :chartData="state.chartData"/>
</div>
</template>
<script>
import ChanceChart from '../components/ChanceChart.vue';
export default {
components: {
ChanceChart
},
data() {
return {
enemysCards : [1610, 169, 168, 167, 330, 329, 328, 327, 326, 325, 324, 323, 1, 1610, 1600, 169, 168, 167, 1610, 1600, 169, 168, 167, 11],
state: {
chartData: {
datasets: [
{
label: "Enemy's Chance",
borderColor: '#1161ed',
data: [40, 20, 12, 39, 10, 40, 39, 80, 40, 20, 12, 41, 190]
},
{
label: 'My Chance',
borderColor: '#f87979',
color: '#fff',
data: [60,60,60,60,60,60,60,60,60,60,60,60, 60]
}
],
labels: ['1', '2', '3', '4', '5', '6', '7', '8', '9', '10', '11', '12', '13'],
},
chartOptions: {
responsive: true
}
}
}
}
For example i want to take the enemysCards array in the data and the enemysCards.lenght in the labels.
Use computed properties instead of data property :
export default {
components: {
ChanceChart
},
computed: {
chartData(){
return {
datasets: [
{
label: "Enemy's Chance",
borderColor: '#1161ed',
data: this.myFirstArray // <- here
},
{
label: 'My Chance',
borderColor: '#f87979',
color: '#fff',
data: this.mySecondArray // <- here
}
],
labels: this.ennemyCards.map((x, index) => index + 1) // here you can calculate your labels
},
chartOptions: {
responsive: true
}
}
}
data() {
return {
enemysCards : [1610, 169, 168, 167, 330, 329, 328, 327, 326, 325, 324, 323, 1, 1610, 1600, 169, 168, 167, 1610, 1600, 169, 168, 167, 11],
myFirstArray: [40, 20, 12, 39, 10, 40, 39, 80, 40, 20, 12, 41, 190],
mySecondArray: [40, 20, 12, 39, 10, 40, 39, 80, 40, 20, 12, 41, 190],
}
}

Vue-apexcharts toolbar : selection tool not working

I created a line graph with vue apexcharts and I'm trying to enable the selection tool in the toolbar (as explain here :https://apexcharts.com/docs/options/chart/toolbar/ )
But even if I set :
selection: true,
It doesn't appear on the graph.
Here is my vue component :
<template>
<div class="container">
<apexchart :type="typechart" height="350" :options="options" :series="series"></apexchart>
</div>
</template>
<script lang="ts">
import { Vue, Component } from "vue-property-decorator";
import VueApexCharts from "vue-apexcharts";
Vue.component("apexchart", VueApexCharts);
#Component({
components: { MyPlot }
})
export default class MyPlot extends Vue {
witdhgraph: string = "500";
typechart: string = "line";
options: any = {
chart: {
id: "vuechart-example",
toolbar: {
show: true,
offsetX: 0,
offsetY: 0,
tools: {
download: true,
selection: true,
zoom: true,
zoomin: true,
zoomout: true,
pan: true
}
},
autoSelected: "selection"
},
stroke: {
curve: "smooth"
},
colors: ["#00205b"],
xaxis: {
type: "numeric",
categories: [
0,
1,
2,
3,
4,
5,
6,
7,
8,
9,
10,
11,
12,
13,
14,
15,
16,
17,
18,
19,
20,
21,
22,
23,
24,
25,
26,
27,
28,
29,
30,
31,
32,
33,
34,
35,
36,
37,
38,
39,
40,
41,
42,
43,
44,
45,
46,
47,
48,
49
]
},
annotations: {
position: "back",
xaxis: [
{
x: 28,
x2: 32,
strokeDashArray: 1,
borderColor: "#c2c2c2",
fillColor: "#c2c2c2",
opacity: 0.3,
offsetX: 0,
offsetY: 0,
label: {
borderColor: "#c2c2c2",
borderWidth: 1,
borderRadius: 2,
text: "test ",
textAnchor: "middle",
position: "top",
orientation: "horizontal",
offsetX: 0,
offsetY: 0,
style: {
background: "#fff",
color: "#777",
fontSize: "12px",
fontWeight: 400,
fontFamily: undefined,
cssClass: "apexcharts-xaxis-annotation-label"
}
}
}
]
}
};
series: any = [
{
name: "series-1",
data: [
67,
93,
4,
39,
31,
62,
39,
4,
63,
51,
28,
73,
75,
80,
47,
17,
6,
55,
36,
18,
85,
64,
99,
21,
100,
14,
18,
12,
70,
44,
44,
87,
8,
37,
72,
67,
20,
7,
5,
33,
36,
41,
30,
30,
88,
31,
47,
77,
74,
35
]
}
];
}
</script>
You also need to enable
chart: {
selection: {
enabled: true
}
}
This was not mentioned in the docs which have been corrected now: https://apexcharts.com/docs/options/chart/toolbar/#selection

How to assign mapState list of data?

Currently, I am working on apex bar chart, wanted to assign list of mapState data into apex series data.
Below is the code:
<script>
import { mapState } from 'vuex';
export default {
data: () => ({
series: [{
name: 'Completed',
data: [44, 55, 57, 58, 56, 61, 58, 63, 60, 66, 67, 62]
}, {
name: 'Total',
data: [100, 90, 101, 100, 98, 87, 105, 97, 114, 94, 112, 100]
}]
}),
computed: {
...mapState(['userAssignmentProgessTotal','userAssignmentProgessCompleted']),
},
}
</script>
mapState value:
userAssignmentProgessTotal: [1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
userAssignmentProgessCompleted: [45, 29, 32, 17, 1, 13, 12, 10, 8, 8, 8, 8]
And I wanted to assign like below:
series: [{
name: 'Completed',
data: this.userAssignmentProgessTotal
}, {
name: 'Total',
data: this.userAssignmentProgessCompleted
}]
but getting error as:
Error in data(): "TypeError: Cannot read property 'userAssignmentProgessTotal' of undefined"
I am very new to vuex as well as vuejs. Apologies if I haven't described well. Thanks
Screenshot:
[1] If you want the series to be reactive ie. keep changing / updating when
userAssignmentProgessTotal or userAssignmentProgessCompleted
changes, make series a computed property instead of data property
import { mapState } from 'vuex';
export default {
computed: {
...mapState([
'userAssignmentProgessTotal',
'userAssignmentProgessCompleted'
]),
series () {
return [{
name: 'Completed',
// If `userAssignmentProgessTotal` is any falsy value it will return the default array else will return `userAssignmentProgessTotal`
data: this.userAssignmentProgessTotal || [44, 55, 57, 58, 56, 61, 58, 63, 60, 66, 67, 62]
}, {
name: 'Total',
data: this.userAssignmentProgessCompleted || [100, 90, 101, 100, 98, 87, 105, 97, 114, 94, 112, 100]
}]
}
}
}
[2] If you want to manually update series, make a method to update
series
import { mapState } from 'vuex';
export default {
data () {
return {
series () {
return [{
name: 'Completed',
data: [44, 55, 57, 58, 56, 61, 58, 63, 60, 66, 67, 62]
}, {
name: 'Total',
data: [100, 90, 101, 100, 98, 87, 105, 97, 114, 94, 112, 100]
}]
}
}
},
computed: {
...mapState([
'userAssignmentProgessTotal',
'userAssignmentProgessCompleted'
])
},
methods: {
updateSeries () {
this.$set(this.series, 0, { name: this.series[0].name, data: this.userAssignmentProgessTotal })
this.$set(this.series, 1, { name: this.series[1].name, data: this.userAssignmentProgessCompleted })
}
},
mounted () {
// call dispatches to fetch data
// ...
// call the method in mounted to update series when component loads
// or else whenever you want to update series
this.updateSeries()
}
}

How can I for loop data in chart js with vue js

I want to for loop the labels and data so I'll never use this again labels: [this.transaction_per_day[0].Day... and data: [this.transaction_per_day[0].Amount.... I just realized when the user transacts on the next day, the data will not show in the bar graph. The problem is when I change the index into i inside the bracket instead of 0,1,2,3. It only displays the first index which is the 0. Can somebody help regarding my problem? Here's my code
retrieveTransactionPerDay : function() {
var self = this
axios.post(this.urlRoot + this.api + "retrieve_transaction_per_day.php")
.then(response => {
console.log(response);
vm.transaction_per_day = response.data
for(var i = 0; i < this.transaction_per_day.length; i++) {
var ctxChart = self.$refs.myChart.getContext('2d')
var myChart = new Chart(ctxChart, {
type: 'bar',
data: {
labels: [this.transaction_per_day[0].Day, this.transaction_per_day[1].Day, this.transaction_per_day[2].Day, this.transaction_per_day[3].Day],
datasets: [{
label: 'Transaction per day',
data: [this.transaction_per_day[0].Amount, this.transaction_per_day[1].Amount, this.transaction_per_day[2].Amount, this.transaction_per_day[3].Amount],
backgroundColor: [
'rgba(54, 162, 235, 1)',
'rgba(255, 206, 86, 1)',
'rgba(75, 192, 192, 1)',
'rgba(255, 99, 132, 1)'
],
borderColor: [
'rgba(54, 162, 235, 1)',
'rgba(255, 206, 86, 1)',
'rgba(75, 192, 192, 1)',
'rgba(255, 99, 132, 1)'
],
borderWidth: 1
}]
},
options: {
title : {
display : true,
text : "TRANSACTION GRAPH",
fontFamily: "sans-serif",
fontSize: 18
},
}
});
}
}).catch(e => {
console.log(e)
});
},
You can remove the for loop and use Array.map to get the label and data
vm.transaction_per_day = response.data
var myChart = new Chart(ctxChart, {
type: 'bar',
data: {
labels: vm.transaction_per_day.map(item => item.Day),
datasets: [{
label: 'Transaction per day',
data: vm.transaction_per_day.map(item => item.Amount),
backgroundColor: [
'rgba(54, 162, 235, 1)',
'rgba(255, 206, 86, 1)',
'rgba(75, 192, 192, 1)',
'rgba(255, 99, 132, 1)'
],
borderColor: [
'rgba(54, 162, 235, 1)',
'rgba(255, 206, 86, 1)',
'rgba(75, 192, 192, 1)',
'rgba(255, 99, 132, 1)'
],
borderWidth: 1
}]
},
options: {
title: {
display: true,
text: "TRANSACTION GRAPH",
fontFamily: "sans-serif",
fontSize: 18
},
}
});