https://subscription.packtpub.com/.../working-with-larger-and-multiple-datasets I have a MySQL database table tbl_marks containing student marks. Column Charts with Multiple Axes are really useful when two or more data sets needs to be plotted against different scale ranges. I have created the graph output for dynamic data retrieved from the database. It is highly customizable, but configuring all of its options remains a challenge for some people. Creating graph view using Chart.js is simple and easy. Adding and removing data is supported by changing the data array. I'm considering moving from Highcharts to chart.js and one of the things I will need is a pie/doughnut chart with multiple datasets. Adding or Removing Data. Chart HTML5 Canvas My project is indeed quite complex: I create the chart in one place, then I would like to update my chart later on in another place, by calling myLine.data = newDataObject. Chart.js is a popular open source library that helps us to plot data in web applications. And finally, the client re-renders a chart with the new data. A common example is a bar chart that also includes a line dataset. Generally, it’s good idea to fetch data via AJAX request rather than embedding it in the web page. Creating a mixed chart starts with the initialization of a basic chart. Environment. And finally, the client re-renders a chart with the new data. This way you can separate the UI from Data. The Cube.js server will generate new SQL code, execute it against the database, and send the result back to the client. Test your JavaScript, CSS, HTML or CoffeeScript online with JSFiddle code editor. When a user picks a new set of dates, a new request will be sent to the Cube.js server. It is easy to parse JSON data and generate graph accordingly. Mixed Chart Types. The Cube.js server will generate new SQL code, execute it against the database, and send the result back to the client. Ideas are welcome! Chart.js example using Jquery Ajax to populate labels and data - chartjs_jquery_ajax_example.html The given example show how to parse JSON data from AJAX request and render chart. Updating Charts. We’ll let the user pick a date range and based on that, reload the chart. When a user picks a new set of dates, a new request will be sent to the Cube.js server. When the chart data or options are changed, Chart.js will animate to the new data values and options. We’ll let the user pick a date range and based on that, reload the chart. I read the mark data and supplied it to the Chart.js function to create the graph with the mark statistics. Given example shows multi series Column Chart with Multiple … The desired chart would show a bar for each publication representing the number of impressions for the ad on that website. I'm trying to use chart.js to create a bar chart that shows the number of ad impressions in an ad buy by publication. 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