Hello dc.js community, @gordonwoodhull, I have one question about the array filter (https://github.com/crossfilter/crossfilter/wiki/API-Reference#dimension_with_arrays), it is pretty straightforward to use it when the value is one variable/column in the function, "crossfilter.dimension(value [, isArray])", but how should I handle if I would like to use the array filter, when the value is an array of dimensions?

for example, normally we use this when we would like to use array filter feature.
var myDim_singleColumn = crossfilter.dimension(function(d) {
Return d[“oneColumn_in_csv”]
}, true);

when not suing array filter feature, this the following works,
var myDim_MultipleColumn = crossfilter.dimension(function(d) {
Return d[“oneColumn_in_csv”, “AnotherColumn_in_csv”,]

});

But when I would like to use array filter feature, it throws an error.
var myDim_MultipleColumn = crossfilter.dimension(function(d) {
Return d[“oneColumn_in_csv”, “AnotherColumn_in_csv”,]

}, true);

Any suggestions? Thank you!