Discovering the current group size post-chart filtering

What is the best way to obtain the size of the filtered firstchartGroup when filtering the 2nd chart in my dashboard that contains 2 charts?

Here's what I attempted:

chart2.on("filtered",function(chart)
{
    console.log(firstchartDim.top(Infinity).length);//including filters
    console.log(firstchartGroup.size());//independent of filters

});

Do you have any suggestions or alternative solutions for this issue?

Answer №1

When using Crossfilter, keep in mind that empty bins will not be removed automatically. To properly count the bins, you'll need to manually exclude the zeros. A helpful method for achieving this can be found in the FAQ section:

console.log(firstchartGroup.all().filter(function(d) { return d.value != 0; }).length);

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