用分组元素dc.js的百分比汇总数据表 [英] Aggregate datatable with percentage for grouped elements dc.js

问题描述

如何在数据表中显示失败百分比？我有以下csv，我正在计算每个名称字段的失败百分比，我想在数据表中显示每个名称的总失败百分比

How to display failure % in the data table? I have the following csv and I am calculating the percentage of failures for each "name" field , I want to display the total failure percentage for each "name" in datatable

Customer | year| Week |Failure_Reason|     name        |    Type  |   Count 
___________________________________________________________________________
A         2018  29      D              Express Air        PR         27
___________________________________________________________________________
A         2018  26      M              Express Air        PR         58
___________________________________________________________________________
A         2018  26      D              Domestic                      5
___________________________________________________________________________
A         2018  27      N              Domestic          SPEED       29
___________________________________________________________________________
A         2018  30    Missed           International     PR          11
___________________________________________________________________________
A         2018  32      N              Domestic          PR          53

维度和组：

        var ndx= crossfilter(data);
        var all= ndx.groupAll();  
        var CTypedim=ndx.dimension(function(d) {return d["name"]+ ',' + d["Customer"];})
        var CTypeGroup=CTypedim.group();

        var percentFailures = CTypedim.group().reduce(
        function(p, v) {
             p.counter+= Number(v.count);
             p.failures += Number(v.Failure_Reason != 'N' ? v.count : 0);
             p.failPercent = p.counter ? p.failures/p.counter : 0;
             return p;
         },
         function(p, v) {

             p.counter-= Number(v.count);
             p.failures -= Number(v.Failure_Reason != 'N' ? v.count : 0);
             p.failPercent = p.counter ? p.failures/p.counter : 0;
             return p;
         },
         function() {
             return {
                 counter: 0,
                 failures: 0,
                 failPercent: 0
             };
         });

        dataTable.width(800).height(800)
        .dimension(percentFailures)
        .group(function(d) { return "" })
        .size(100)
        .columns([
            function(d) { return d.Customer; },
            function(d) { return d.year; },
            function(d) { return d.value.failpercent*100; },
            function(d) { return d.name; },

        ])
        .sortBy(function(d){ return d.year; })
        .order(d3.descending);

需要显示汇总数据，如下所示：

Need to display aggregated datavtable as follows:

Customer | Year| Failure%|     name        |    
_____________________________________________
A         2018      100%     Express Air       
_____________________________________________
A         2018      5.7%       Domestic     
_____________________________________________
A         2018      100%      International       
_____________________________________________

推荐答案

您在正确的轨道上，继续前进！

You're on the right track, keep going!

您需要使用表中的汇总字段：

You'll need to use the aggregated fields in your table:

    .columns([
        function(d) { return d.key.split(',')[1]; }, // customer part of multikey
        function(d) { return d.year; },
        function(d) { return d.value.failPercent*100; }, // capitalize consistently
        function(d) { return d.key.split(',')[0]; }, // name part of multikey

    ])

使用年份有问题！因为一旦进行汇总，您就不会真正知道每个汇总值代表的年份-可能代表多个年份。如果您可以删除该列，我推荐它。

Using the year is problematic! Because once you aggregate, you don't really know what year each aggregated value represents - and it may represent multiple years. If you can drop that column, I recommend it.

这篇关于用分组元素dc.js的百分比汇总数据表的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！