.filter([7,10])

并且该范围在图表上显示良好,但显然选择了0个观察值.
我预计会选择几千个观测值.就像我用刷子手动选择范围[7,10]时那样.

我在这里缺少的任何暗示？

我的部分代码：

var chart_globalscore = dc.barChart('#chart_globalscore');
(...)
    var ndx = crossfilter(data_movies),all = ndx.groupAll()
(...),GlobalscoreDimension = ndx.dimension(function(d) { if ( !isNaN(d.Globalscore) ) {return Math.round(d.Globalscore*10)/10 ;} else {return -1;} }),GlobalscoreGroup = GlobalscoreDimension.group()
(...)
        ;
(...)
    chart_globalscore
        .width(width001)
        .height(height001)
        .margins(margins)
        .dimension(GlobalscoreDimension)
        .group(GlobalscoreGroup)
        .round(function(val){return Math.round(val*10)/10;})
        .x(d3.scale.linear().domain([0,10.1]))
        .filter([7,10])
        .centerBar(false)
        .transitionDuration(transitionDuration)
        .elasticY(true)
        .gap(1)
        .xUnits(function(){return 100;})
        .renderHorizontalGridLines(true)
        .yAxis().ticks(2)
        ;