charts

问题 Recently I started working on Google Charts. Till now it is fine but now I am facing an issue with multiple selection. I am able to select multiple points by mouse clicks but I need to select range of points by dragging the mouse. Could you please help me in this? 回答1: using this answer to draw the selection range --> Select area/rectangle in javascript use chart method --> chart.getChartLayoutInterface().getBoundingBox() to find the bounds for each point... chart.getChartLayoutInterface()

问题 I'm still new to flutter and I've been trying to display some data from a http request in a Bar-chart. I couldn't find any example for this. I hope some of you guys can help :) I though of using this Chart from the online gallery. I just changed the name of the classes for my app: import 'package:flutter/material.dart'; import 'package:charts_flutter/flutter.dart' as charts; class SimpleSeriesLegend extends StatelessWidget { final List<charts.Series> seriesList; final bool animate;

问题 I'm still new to flutter and I've been trying to display some data from a http request in a Bar-chart. I couldn't find any example for this. I hope some of you guys can help :) I though of using this Chart from the online gallery. I just changed the name of the classes for my app: import 'package:flutter/material.dart'; import 'package:charts_flutter/flutter.dart' as charts; class SimpleSeriesLegend extends StatelessWidget { final List<charts.Series> seriesList; final bool animate;

问题 I'd like to know how to create a matplotlib bar chart with a threshold line, the part of bars above threshold line should have red color, and the parts below the threshold line should be green. Please provide me a simple example, I couldn't find anything on the web. 回答1: Make it a stacked bar chart, like in this example, but divide your data up into the parts above your threshold and the parts below. Example: import numpy as np import matplotlib.pyplot as plt # some example data threshold =

问题 I am trying to show some data on the chart while using Yii2 . I have installed Yii2 Chart JS via the composer. Below is the code is taken from the documentation use practically\chartjs\Chart; Chart::widget([ 'type' => Chart::TYPE_BAR, 'datasets' => [ [ 'data' => [ 'Label 1' => 10, 'Label 2' => 20, 'Label 3' => 30 ] ] ] ]); Now when I refreshed this page I not seeing any chart. But in inspect->console I am getting an error Uncaught ReferenceError: Chart is not defined Update 1 Here is my

问题 I am trying to show some data on the chart while using Yii2 . I have installed Yii2 Chart JS via the composer. Below is the code is taken from the documentation use practically\chartjs\Chart; Chart::widget([ 'type' => Chart::TYPE_BAR, 'datasets' => [ [ 'data' => [ 'Label 1' => 10, 'Label 2' => 20, 'Label 3' => 30 ] ] ] ]); Now when I refreshed this page I not seeing any chart. But in inspect->console I am getting an error Uncaught ReferenceError: Chart is not defined Update 1 Here is my

问题 I have been racking my brain on this for days now, starting to think its a bug in the chartJS package? When I setup a stacked bar chart, even with a pretty simple options config, I tend to get very slim transparent gaps between the bar data itself. The more data you have in the bar, the more apparent it becomes. I've isolated it completely out of my code (we're using React and react-chartjs-2 , but i=I've recreated it using vanilla ChartJS, latest version). In my example here, I've turned all

问题 i want to display some data in reactjs using Chartjs-2. For displaying my data i want a Doughnut Pie chart. When i use the specific pie chart it shows me like: But the desired output should be something like this: I have read from the documentation that i should edit the tooltip from the option but i cannot find the way to do this. Do you know how? 回答1: You need to implement your custom tool tip in the chart options. You have to replace the html element style and size with the one you want.

问题 In google charts, you can create a diffChart which will give you a nice representation of data by showing 1 series of data in front of the other, like so Problem is i need to do this with more then 2 series, i would like to do it with up to 4, stacking each item in front of each other. Is this possible using google charts?? I do not care if i have to use different google charts to accomplish this, but i need the 4 series in front of each other, NOT side by side Here is an example plunkr, but

问题 I am followinf the google Chart documentation for arrayToDataTable and the example states that I can use formatted values, like that: var data = google.visualization.arrayToDataTable([ ['Employee Name', 'Salary'], ['Mike', {v:22500, f:'18,500'}], ... where f:'18,500 is the formatted value to show. My code looks identical: var data = google.visualization.arrayToDataTable([ ['Category', 'Amount'], ['Food', {v:5595.819984, f:'5.595,82'}], ['Home', {v:1890.530002, f:'1.890,53'}], ['Mail', {v:8