d3 / dc.js - 如何在告诉crossfilter将数组中的元素视为单独的记录时创建堆积条形图？

NEW: 我在我的解决方案中发布的小提琴起作用（https://jsfiddle.net/jnf84n7c/） . 但是，当我尝试在我的项目中实现策略时，我是第一个图，我收到一条错误消息 .

未捕获的TypeError：a.group.all不是函数（错误位于dc.min.js中）

知道为什么它适用于小提琴但不适用于我的ruby-on-rails应用程序？

New code

var data = [
    {"key":"KEY-1","state":"MA","status":["A","R","C"],"items":["orange","meat","bread"],"date":"Y16"},
    {"key":"KEY-2","state":"MA","status":["A","O"],"items":["apple","bread"],"date":"Y15"},
    {"key":"KEY-3","state":"TX","status":["O"],"items":["bread"],"date":"Y16"},
    {"key":"KEY-4","state":"TN","status":["A","R"],"items":["apple","bread"],"date":"Y16"},
    {"key":"KEY-5","state":"TN","status":["A","O"],"items":["apple","orange"],"date":"Y15"},
    {"key":"KEY-6","state":"TN","status":[],"items":[],"date":"Y14"}
];
var cf = crossfilter(data);
var dates       = cf.dimension(function(d){ return d.date; });
var datesGroup  = dates.group();
var states      = cf.dimension(function(d){ return d.state; });
var statesGroup = states.group();
var itemsDim    = cf.dimension(function(d){ return d.items; });
var itemsGroup  = itemsDim.groupAll().reduce(reduceAdd, reduceRemove, reduceInitial).value();
itemsGroup.all  = myAllFunction;
var states_items_group_apple  = states.group().reduce(reduceAdd_apple,  reduceRemove_apple,  reduceInitial_items);
var states_items_group_bread  = states.group().reduce(reduceAdd_bread,  reduceRemove_bread,  reduceInitial_items);
var states_items_group_orange = states.group().reduce(reduceAdd_orange, reduceRemove_orange, reduceInitial_items);
var states_items_group_meat   = states.group().reduce(reduceAdd_meat,   reduceRemove_meat,   reduceInitial_items);
var itemsGroup1  = itemsDim.groupAll().reduce(reduceAdd1, reduceRemove1, reduceInitial).value();
var itemsGroup2  = itemsDim.groupAll().reduce(reduceAdd2, reduceRemove2, reduceInitial).value();
var itemsGroup3  = itemsDim.groupAll().reduce(reduceAdd3, reduceRemove3, reduceInitial).value();
itemsGroup1.all  = myAllFunction;
itemsGroup2.all  = myAllFunction;
itemsGroup3.all  = myAllFunction;
var status       = cf.dimension(function(d){ return d.status; });
var statusGroup1 = status.groupAll().reduce(reduceAdd_group1, reduceRemove_group1, reduceInitial_group).value();
var statusGroup2 = status.groupAll().reduce(reduceAdd_group2, reduceRemove_group2, reduceInitial_group).value();
var statusGroup3 = status.groupAll().reduce(reduceAdd_group3, reduceRemove_group3, reduceInitial_group).value();
var statusGroup4 = status.groupAll().reduce(reduceAdd_group4, reduceRemove_group4, reduceInitial_group).value();
statusGroup1.all = myAllFunction;
statusGroup2.all = myAllFunction;
statusGroup3.all = myAllFunction;
statusGroup4.all = myAllFunction;
var statusGroup  = status.groupAll().reduce(reduceAdd_group, reduceRemove_group, reduceInitial_group).value();
statusGroup.all  = myAllFunction;
var row = dc.rowChart("#rowchart");
row.height(170)
   .dimension(itemsDim)
   .group(itemsGroup)
   .ordering(function(d){return -d.value;})
   .renderLabel(true)
   .ordinalColors(["#008600","#80FF80","#FF80FF","#860086"])
   .xAxis().ticks(3);
row.filterHandler(myFilterFunction);
var pie1 = dc.pieChart("#piechart1");
pie1.height(75).width(75)
    .dimension(dates)
    .group(datesGroup);
var pie2 = dc.pieChart("#piechart2");
pie2.height(75).width(75)
    .dimension(states)
    .group(statesGroup);
var pie3 = dc.pieChart("#piechart3");
pie3.height(75).width(75)
    .dimension(status)
    .group(statusGroup);
pie3.filterHandler(myFilterFunction);
var bar = dc.barChart("#barchart");
bar.width(500).height(200)
   .dimension(states)
   .group(states_items_group_bread,  'bread')
   .stack(states_items_group_orange, 'orange')
   .stack(states_items_group_apple,  'apple')
   .stack(states_items_group_meat,   'meat')
   .valueAccessor(function(p){ return p.value.count; })
   .renderHorizontalGridLines(true)
   .renderLabel(true)
   .legend(dc.legend().x(100).y(0).horizontal(1).itemHeight(13).gap(6).legendWidth(400).itemWidth(100))
   .gap(10)
   .elasticX(true).elasticY(true)
   .yAxisLabel("count")
   .x(d3.scale.ordinal())
   .xUnits(dc.units.ordinal)
   .margins({top:30,left:50,right:10,bottom:50});    
var bar2 = dc.barChart("#barchart2");
bar2.width(500).height(200)
    .dimension(itemsDim)
    .group(itemsGroup1,'MA')
    .stack(itemsGroup2,'TN')
    .stack(itemsGroup3,'TX')
    .renderHorizontalGridLines(true)
    .renderLabel(true)
    .legend(dc.legend().x(60).y(0).horizontal(1).itemHeight(13).gap(6).legendWidth(400).itemWidth(60))
    .gap(10)
    .yAxisLabel("count")
    .x(d3.scale.ordinal())
    .xUnits(dc.units.ordinal)
    .ordinalColors(["#008600","#80FF80","#FF80FF","#860086"])
    .margins({top:30,left:50,right:10,bottom:50});
bar2.filterHandler(myFilterFunction);
var bar3 = dc.barChart("#barchart3");
bar3.width(500).height(200)
    .dimension(status)
    .group(statusGroup1,"bread")
    .stack(statusGroup2,"apple")
    .stack(statusGroup3,"orange")
    .stack(statusGroup4,"meat")
    .renderHorizontalGridLines(true)
    .renderLabel(true)
    .legend(dc.legend().x(60).y(0).horizontal(1).itemHeight(13).gap(6).legendWidth(400).itemWidth(60))
    .gap(10)
    .yAxisLabel("count")
    .x(d3.scale.ordinal())
    .xUnits(dc.units.ordinal)
    .margins({top:30,left:50,right:10,bottom:50});
bar3.filterHandler(myFilterFunction);
dc.renderAll();
function reduceAdd(p,v){
    if (v.items[0] === "") return p;
    v.items.forEach(function(val,idx){
        p[val] = (p[val] || 0) + 1;
    });
    return p;
}
function reduceRemove(p,v){
    if (v.items[0] === "") return p;
    v.items.forEach(function(val,idx){
        p[val] = (p[val] || 0) - 1;
    });
    return p;
}
function reduceInitial(){
    return {
        bread: 0,
        apple: 0,
        orange: 0,
        meat: 0
    };
}
function reduceAdd1(p,v){
    if (v.items[0] === "") return p;
    if (v.state === "MA"){
        v.items.forEach(function(val,idx){
            p.bread  += (val === 'bread'  ? 1 : 0);
            p.apple  += (val === 'apple'  ? 1 : 0);
            p.orange += (val === 'orange' ? 1 : 0);
            p.meat   += (val === 'meat'   ? 1 : 0);
        });
    }
    return p;
}
function reduceRemove1(p,v){
    if (v.items[0] === "") return p;
    if (v.state === "MA"){
        v.items.forEach(function(val,idx){
            p.bread  -= (val === 'bread'  ? 1 : 0);
            p.apple  -= (val === 'apple'  ? 1 : 0);
            p.orange -= (val === 'orange' ? 1 : 0);
            p.meat   -= (val === 'meat'   ? 1 : 0);
        });
    }
    return p;
}
function reduceAdd2(p,v){
    if (v.items[0] === "") return p;
    if (v.state === "TN"){
        v.items.forEach(function(val,idx){
            p.bread  += (val === 'bread'  ? 1 : 0);
            p.apple  += (val === 'apple'  ? 1 : 0);
            p.orange += (val === 'orange' ? 1 : 0);
            p.meat   += (val === 'meat'   ? 1 : 0);
        });
    }
    return p;
}
function reduceRemove2(p,v){
    if (v.items[0] === "") return p;
    if (v.state === "TN"){
        v.items.forEach(function(val,idx){
            p.bread  -= (val === 'bread'  ? 1 : 0);
            p.apple  -= (val === 'apple'  ? 1 : 0);
            p.orange -= (val === 'orange' ? 1 : 0);
            p.meat   -= (val === 'meat'   ? 1 : 0);
        });
    }
    return p;
}
function reduceAdd3(p,v){
    if (v.items[0] === "") return p;
    if (v.state === "TX"){
        v.items.forEach(function(val,idx){
            p.bread  += (val === 'bread'  ? 1 : 0);
            p.apple  += (val === 'apple'  ? 1 : 0);
            p.orange += (val === 'orange' ? 1 : 0);
            p.meat   += (val === 'meat'   ? 1 : 0);
        });
    }
    return p;
}
function reduceRemove3(p,v){
    if (v.items[0] === "") return p;
    if (v.state === "TX"){
        v.items.forEach(function(val,idx){
            p.bread  -= (val === 'bread'  ? 1 : 0);
            p.apple  -= (val === 'apple'  ? 1 : 0);
            p.orange -= (val === 'orange' ? 1 : 0);
            p.meat   -= (val === 'meat'   ? 1 : 0);
        });
    }
    return p;
}
function reduceAdd_apple(p,v){
    if (v.items[0] === "") return p;
    p.state = v.state;
    v.items.forEach(function(val,idx){
        p.count += (val === 'apple' ? 1 : 0);
    });
    return p;
}
function reduceRemove_apple(p,v){
    if (v.items[0] === "") return p;
    p.state = v.state;
    v.items.forEach(function(val,idx){
        p.count -= (val === 'apple' ? 1 : 0);
    });
    return p;
}
function reduceAdd_bread(p,v){
    if (v.items[0] === "") return p;
    p.state = v.state;
    v.items.forEach(function(val,idx){
        p.count += (val === 'bread' ? 1 : 0);
    });
    return p;
}
function reduceRemove_bread(p,v){
    if (v.items[0] === "") return p;
    p.state = v.state;
    v.items.forEach(function(val,idx){
        p.count -= (val === 'bread' ? 1 : 0);
    });
    return p;
}
function reduceAdd_orange(p,v){
    if (v.items[0] === "") return p;
    p.state = v.state;
    v.items.forEach(function(val,idx){
        p.count += (val === 'orange' ? 1 : 0);
    });
    return p;
}
function reduceRemove_orange(p,v){
    if (v.items[0] === "") return p;
    p.state = v.state;
    v.items.forEach(function(val,idx){
        p.count -= (val === 'orange' ? 1 : 0);
    });
    return p;
}
function reduceAdd_meat(p,v){
    if (v.items[0] === "") return p;
    p.state = v.state;
    v.items.forEach(function(val,idx){
        p.count += (val === 'meat' ? 1 : 0);
    });
    return p;
}
function reduceRemove_meat(p,v){
    if (v.items[0] === "") return p;
    p.state = v.state;
    v.items.forEach(function(val,idx){
        p.count -= (val === 'meat' ? 1 : 0);
    });
    return p;
}
function reduceAdd_group1(p,v){
    if (v.items[0]  === "") return p;
    if (v.status[0] === "") return p;
    v.items.forEach(function(val1,idx1){
        if (val1 === "bread"){
            v.status.forEach(function(val2,idx2){
                if(idx1 === idx2){
                p.A += (val2 === 'A' ? 1 : 0);
                p.O += (val2 === 'O' ? 1 : 0);
                p.C += (val2 === 'C' ? 1 : 0);
                p.R += (val2 === 'R' ? 1 : 0);
                }
            });
        }
    });
    return p;
}
function reduceRemove_group1(p,v){
    if (v.items[0]  === "") return p;
    if (v.status[0] === "") return p;
    v.items.forEach(function(val1,idx1){
        if(val1 === "bread"){
            v.status.forEach(function(val2,idx2){
                if(idx1 === idx2){
                p.A -= (val2 === 'A' ? 1 : 0);
                p.O -= (val2 === 'O' ? 1 : 0);
                p.C -= (val2 === 'C' ? 1 : 0);
                p.R -= (val2 === 'R' ? 1 : 0);
                }
            });
        }
    });
    return p;
}
function reduceAdd_group2(p,v){
    if (v.items[0]  === "") return p;
    if (v.status[0] === "") return p;
    v.items.forEach(function(val1,idx1){
        if(val1 === "apple"){
            v.status.forEach(function(val2,idx2){
                if(idx1 === idx2){
                p.A += (val2 === 'A' ? 1 : 0);
                p.O += (val2 === 'O' ? 1 : 0);
                p.C += (val2 === 'C' ? 1 : 0);
                p.R += (val2 === 'R' ? 1 : 0);
                }
            });
        }
    });
    return p;
}
function reduceRemove_group2(p,v){
    if (v.items[0]  === "") return p;
    if (v.status[0] === "") return p;
    v.items.forEach(function(val1,idx1){
        if(val1 === "apple"){
            v.status.forEach(function(val2,idx2){
                if(idx1 === idx2){
                p.A -= (val2 === 'A' ? 1 : 0);
                p.O -= (val2 === 'O' ? 1 : 0);
                p.C -= (val2 === 'C' ? 1 : 0);
                p.R -= (val2 === 'R' ? 1 : 0);
                }
            });
        }
    });
    return p;
}
function reduceAdd_group3(p,v){
    if (v.items[0]  === "") return p;
    if (v.status[0] === "") return p;
    v.items.forEach(function(val1,idx1){
        if(val1 === "orange"){
            v.status.forEach(function(val2,idx2){
                if(idx1 === idx2){
                p.A += (val2 === 'A' ? 1 : 0);
                p.O += (val2 === 'O' ? 1 : 0);
                p.C += (val2 === 'C' ? 1 : 0);
                p.R += (val2 === 'R' ? 1 : 0);
                }
            });
        }
    });
    return p;
}
function reduceRemove_group3(p,v){
    if (v.items[0]  === "") return p;
    if (v.status[0] === "") return p;
    v.items.forEach(function(val1,idx1){
        if(val1 === "orange"){
            v.status.forEach(function(val2,idx2){
                if(idx1 === idx2){
                p.A -= (val2 === 'A' ? 1 : 0);
                p.O -= (val2 === 'O' ? 1 : 0);
                p.C -= (val2 === 'C' ? 1 : 0);
                p.R -= (val2 === 'R' ? 1 : 0);
                }
            });
        }
    });
    return p;
}
function reduceAdd_group4(p,v){
    if (v.items[0]  === "") return p;
    if (v.status[0] === "") return p;
    v.items.forEach(function(val1,idx1){
        if(val1 === "meat"){
            v.status.forEach(function(val2,idx2){
                if(idx1 === idx2){
                p.A += (val2 === 'A' ? 1 : 0);
                p.O += (val2 === 'O' ? 1 : 0);
                p.C += (val2 === 'C' ? 1 : 0);
                p.R += (val2 === 'R' ? 1 : 0);
                }
            });
        }
    });
    return p;
}
function reduceRemove_group4(p,v){
    if (v.items[0]  === "") return p;
    if (v.status[0] === "") return p;
    v.items.forEach(function(val1,idx1){
        if(val1 === "meat"){
            v.status.forEach(function(val2,idx2){
                if(idx1 === idx2){
                p.A -= (val2 === 'A' ? 1 : 0);
                p.O -= (val2 === 'O' ? 1 : 0);
                p.C -= (val2 === 'C' ? 1 : 0);
                p.R -= (val2 === 'R' ? 1 : 0);
                }
            });
        }
    });
    return p;
}
function reduceAdd_group(p,v){
    if (v.status[0] === "") return p;
    v.status.forEach(function(val,idx){
        p[val] = (p[val] || 0) + 1;
    });
    return p;
}
function reduceRemove_group(p,v){
    if (v.status[0] === "") return p;
    v.status.forEach(function(val,idx){
        p[val] = (p[val] || 0) - 1;
    });
    return p;
}
function reduceInitial_group(){
    return {
        A: 0,
        O: 0,
        C: 0,
        R: 0
    };
}
function reduceInitial_items(){
    return {
        count: 0,
        state: ''
    };
}
//filter function:
function myFilterFunction(dimension,filters){
    dimension.filter(null);
    if (filters.length === 0)
        dimension.filter(null);
    else
        dimension.filterFunction(function(d){
            for(var i=0; i<d.length; i++){
                if (filters.indexOf(d[i]) >= 0) return true;
            }
            return false;
        });
    return filters;
}
function myAllFunction(){
    var newObject = [];
    for(var key in this){
        if(this.hasOwnProperty(key) && key != "all"){
            newObject.push({
                key: key,
                value: this[key]
            });
        }
    }
    return newObject;
};

Old Question: 我很抱歉再创一个问题 . 不幸的是，我无法评论其他帖子来提问我的问题 . 与我的相似的两个问题是：dc.js - how to group by unique id和Is there a way to tell crossfilter to treat elements of array as separate records instead of treating whole array as single key?

我正在使用后一个解释的代码 . 但是，我希望能够堆叠 . 正如您将能够在jsfiddle中看到的那样，底部条形图不会列出x轴中的项目，而是堆叠不同的状态计数 . 任何帮助将不胜感激 . 谢谢！

这是最初的小提琴：https://jsfiddle.net/7qwqcakr/1/

我几乎有这个小提琴：https://jsfiddle.net/wq0ed5hr/但是堆积的条形图都是一种颜色，即使图例将它们作为不同的颜色 . 如何修复颜色问题？

修复了颜色问题：https://jsfiddle.net/rmc2zpr4/

现在唯一的问题是处理“计数问题”，正如我在下面的解决方案和评论中所解释的那样 .

这是 updated 代码：

var data = [
    {"key":"KEY-1","state":"MA","items":["orange","meat","bread"],"date":"Y16"},
    {"key":"KEY-2","state":"MA","items":["apple","bread"],"date":"Y15"},
    {"key":"KEY-3","state":"TX","items":["bread"],"date":"Y16"},
    {"key":"KEY-4","state":"TN","items":["apple","bread"],"date":"Y16"},
    {"key":"KEY-5","state":"TN","items":["apple","orange"],"date":"Y15"},
    {"key":"KEY-6","state":"TN","items":[],"date":"Y14"}
];
var cf = crossfilter(data);
var dates       = cf.dimension(function(d){ return d.date; });
var datesGroup  = dates.group().reduceCount(function(d){ return d.key; });
var states      = cf.dimension(function(d){ return d.state; });
var statesGroup = states.group().reduceCount(function(d){ return d.key; });
var itemsDim    = cf.dimension(function(d){ return d.items; });
var itemsGroup  = itemsDim.groupAll().reduce(reduceAdd, reduceRemove, reduceInitial).value();
itemsGroup.all  = myAllFunction;
var statesDim   = cf.dimension(function(d){ return d.state; });
var states_items_group_apple  = statesDim.group().reduce(reduceAdd_apple,  reduceRemove_apple,  reduceInitial_items);
var states_items_group_bread  = statesDim.group().reduce(reduceAdd_bread,  reduceRemove_bread,  reduceInitial_items);
var states_items_group_orange = statesDim.group().reduce(reduceAdd_orange, reduceRemove_orange, reduceInitial_items);
var states_items_group_meat   = statesDim.group().reduce(reduceAdd_meat,   reduceRemove_meat,   reduceInitial_items);
var items        = cf.dimension(function(d){ return d.items; })
var itemsGroup1  = items.groupAll().reduce(reduceAdd1, reduceRemove1, reduceInitial).value();
var itemsGroup2  = items.groupAll().reduce(reduceAdd2, reduceRemove2, reduceInitial).value();
var itemsGroup3  = items.groupAll().reduce(reduceAdd3, reduceRemove3, reduceInitial).value();
itemsGroup1.all  = myAllFunction;
itemsGroup2.all  = myAllFunction;
itemsGroup3.all  = myAllFunction;
var row = dc.rowChart("#rowchart");
row.height(170)
   .dimension(itemsDim)
   .group(itemsGroup)
   .ordering(function(d){return -d.value;})
   .renderLabel(true)
       .ordinalColors(["#008600","#80FF80","#FF80FF","#860086"])
   .xAxis().ticks(3);
row.filterHandler(myFilterFunction);
var pie1 = dc.pieChart("#piechart1");
pie1.height(75).width(75)
    .dimension(dates)
    .group(datesGroup);
var pie2 = dc.pieChart("#piechart2");
pie2.height(75).width(75)
    .dimension(states)
    .group(statesGroup);
var bar = dc.barChart("#barchart");
bar.width(500).height(200)
   .dimension(statesDim)
   .group(states_items_group_bread,  'bread')
   .stack(states_items_group_orange, 'orange')
   .stack(states_items_group_apple,  'apple')
   .stack(states_items_group_meat,   'meat')
   .valueAccessor(function(p){ return p.value.count; })
   .renderHorizontalGridLines(true)
   .renderLabel(true)
   .legend(dc.legend().x(100).y(0).horizontal(1).itemHeight(13).gap(6).legendWidth(400).itemWidth(100))
   .gap(10)
   .elasticX(true).elasticY(true)
   .yAxisLabel("count")
   .x(d3.scale.ordinal())
   .xUnits(dc.units.ordinal)
   .margins({top:30,left:50,right:10,bottom:50});
var bar2 = dc.barChart("#barchart2");
bar2.width(500).height(200)
    .dimension(items)
    .group(itemsGroup1,'MA')
    .stack(itemsGroup2,'TN')
    .stack(itemsGroup3,'TX')
    .renderHorizontalGridLines(true)
    .renderLabel(true)
    .legend(dc.legend().x(60).y(0).horizontal(1).itemHeight(13).gap(6).legendWidth(400).itemWidth(60))
    .gap(10)
    .yAxisLabel("count")
    .x(d3.scale.ordinal())
    .xUnits(dc.units.ordinal)
    .ordinalColors(["#008600","#80FF80","#FF80FF","#860086"])
    .margins({top:30,left:50,right:10,bottom:50});
bar2.filterHandler(myFilterFunction);
dc.renderAll();
//reduce functions:
function reduceAdd(p,v){
    if (v.items[0] === "") return p;
    v.items.forEach(function(val,idx){
        p[val] = (p[val] || 0) + 1;
    });
    return p;
}
function reduceRemove(p,v){
    if (v.items[0] === "") return p;
    v.items.forEach(function(val,idx){
        p[val] = (p[val] || 0) - 1;
    });
    return p;
}
function reduceInitial(){
    return {
        bread: 0,
        apple: 0,
        orange: 0,
        meat: 0
    };
}
function reduceAdd1(p,v){
    if (v.items[0] === "") return p;
    if (v.state === "MA"){
        v.items.forEach(function(val,idx){
            p.bread  += (val === 'bread'  ? 1 : 0);
            p.apple  += (val === 'apple'  ? 1 : 0);
            p.orange += (val === 'orange' ? 1 : 0);
            p.meat   += (val === 'meat'   ? 1 : 0);
        });
    }
    return p;
}
function reduceRemove1(p,v){
    if (v.items[0] === "") return p;
    if (v.state === "MA"){
        v.items.forEach(function(val, idx){
            p.bread  -= (val === 'bread'  ? 1 : 0);
            p.apple  -= (val === 'apple'  ? 1 : 0);
            p.orange -= (val === 'orange' ? 1 : 0);
            p.meat   -= (val === 'meat'   ? 1 : 0);
        });
    }
    return p;
}
function reduceAdd2(p,v){
    if (v.items[0] === "") return p;
    if (v.state === "TN"){
        v.items.forEach(function(val,idx){
            p.bread  += (val === 'bread'  ? 1 : 0);
            p.apple  += (val === 'apple'  ? 1 : 0);
            p.orange += (val === 'orange' ? 1 : 0);
            p.meat   += (val === 'meat'   ? 1 : 0);
        });
    }
    return p;
}
function reduceRemove2(p,v){
    if (v.items[0] === "") return p;
    if (v.state === "TN"){
        v.items.forEach(function(val,idx){
            p.bread  -= (val === 'bread'  ? 1 : 0);
            p.apple  -= (val === 'apple'  ? 1 : 0);
            p.orange -= (val === 'orange' ? 1 : 0);
            p.meat   -= (val === 'meat'   ? 1 : 0);
        });
    }
    return p;
}
function reduceAdd3(p,v){
    if (v.items[0] === "") return p;
    if (v.state === "TX"){
        v.items.forEach(function(val,idx){
            p.bread  += (val === 'bread'  ? 1 : 0);
            p.apple  += (val === 'apple'  ? 1 : 0);
            p.orange += (val === 'orange' ? 1 : 0);
            p.meat   += (val === 'meat'   ? 1 : 0);
        });
    }
    return p;
}
function reduceRemove3(p,v){
    if (v.items[0] === "") return p;
    if (v.state === "TX"){
        v.items.forEach(function(val,idx){
            p.bread  -= (val === 'bread'  ? 1 : 0);
            p.apple  -= (val === 'apple'  ? 1 : 0);
            p.orange -= (val === 'orange' ? 1 : 0);
            p.meat   -= (val === 'meat'   ? 1 : 0);
        });
    }
    return p;
}
function reduceAdd_apple(p,v){
    if (v.items[0] === "") return p;
    p.state = v.state;
    v.items.forEach(function(val,idx){
        p.count += (val === 'apple' ? 1 : 0);
    });
    return p;
}
function reduceRemove_apple(p,v){
    if (v.items[0] === "") return p;
    p.state = v.state;
    v.items.forEach(function(val,idx){
        p.count -= (val === 'apple' ? 1 : 0);
    });
    return p;
}
function reduceAdd_bread(p,v){
    if (v.items[0] === "") return p;
    p.state = v.state;
    v.items.forEach(function(val,idx){
        p.count += (val === 'bread' ? 1 : 0);
    });
    return p;
}
function reduceRemove_bread(p,v){
    if (v.items[0] === "") return p;
    p.state = v.state;
    v.items.forEach(function(val,idx){
        p.count -= (val === 'bread' ? 1 : 0);
    });
    return p;
}
function reduceAdd_orange(p,v){
    if (v.items[0] === "") return p;
    p.state = v.state;
    v.items.forEach(function(val,idx){
        p.count += (val === 'orange' ? 1 : 0);
    });
    return p;
}
function reduceRemove_orange(p,v){
    if (v.items[0] === "") return p;
    p.state = v.state;
    v.items.forEach(function(val,idx){
        p.count -= (val === 'orange' ? 1 : 0);
    });
    return p;
}
function reduceAdd_meat(p,v){
    if (v.items[0] === "") return p;
    p.state = v.state;
    v.items.forEach(function(val,idx){
        p.count += (val === 'meat' ? 1 : 0);
    });
    return p;
}
function reduceRemove_meat(p,v){
    if (v.items[0] === "") return p;
    p.state = v.state;
    v.items.forEach(function(val,idx){
        p.count -= (val === 'meat' ? 1 : 0);
    });
    return p;
}
function reduceInitial_items(){
    return {
        count: 0,
        state: ''
    };
}
function myFilterFunction(dimension,filters){
    dimension.filter(null);
    if(filters.length === 0)
        dimension.filter(null);
    else
        dimension.filterFunction(function(d){
            for(var i=0; i<d.length; i++){
                if(filters.indexOf(d[i]) >= 0) return true;
            }
            return false;
        });
    return filters;
}
function myAllFunction(){
    var newObject = [];
    for(var key in this){
        if(this.hasOwnProperty(key) && key != "all"){
            newObject.push({
                key: key,
                value: this[key]
            });
        }
    }
    return newObject;
};