dc.js

I built a crossfilter with several dimensions and groups to display the data visually using dc.js. The data visualized is bike trip data, and each trip will be loaded in. Right now, there's over 750,000 pieces of data. The JSON file I'm using is 70 mb large, and will only need to grow as I receive more data in the months to come. So my question is, how can I make the data more lean so it can scale well? Right now it is taking approximately 15 seconds to load on my internet connection, but I'm worried that it will take too long once I have too much data. Also, I've tried (unsuccessfully) to get

I was wondering if there is any known way to efficiently add a "Reorder" feature to my datatables in dc.js. It would be great if my users, after having done their selection with the charts, could decide according to which column the filtered rows should be ordered (by clicking on the column header for example). Any ideas where to start? Thanks a lot I like to use JQuery datatables for this: http://datatables.net/ First add the table and the header row: <table id="dc-data-table" class="list table table-striped table-bordered"> <thead> <tr> <th>Country</th> <th>Users</th> </tr> </thead> </table>

I'm trying to calculate and plot percentage (%) in one of my dc charts. I have read the API and multiple examples regarding reduce functions (add, remove & init etc) I referred to 1st & 2nd for my codes. I want to calculate decay percentage ( sum(decay_data)/sum(all_data) ; decay_data is defined in data by "decay_ind==1" ) I'm still not getting anything in the graph due to some issue, the value accessor is also used but, there could be some issue in that. In the code, please just see "percentgroup" and "datedimension" only, others are for separate charts. My code so far : var chart = dc

In dc.js I have linked a heatmap with a bar chart. When a range is selected on the bar chart, the heatmap defaults to the first color in the color scheme instead of the gray deselected color. How can I get the heatmap to use the gray color? The solution is to use a custom reduce function on the group. In so doing, I can set the value of a deselected item to null and then use an appropriate color for all null values. 来源： https://stackoverflow.com/questions/40580748/dc-js-heatmap-deselected-colors

I'm using dc.js with angular.js's ui-router. My goal is to have two routing states. Each should present multiple graphs. Everything works fine, but everytime the routing state changes, the performance of the graphs gets slower. I think that the problem maybe is located on dc.js or my usage of it. Everytime the routing state changes, new graphs will be invoked. Maybe dc.js doesn't delete the old ones. Is there an option in dc.js to delete the graphs? There is the undocumented dc.chartRegistry.deregister(chart,group) : https://github.com/dc-js/dc.js/blob/master/src/core.js#L70 But a bigger