Wolfram 语言™

修正选举结果跟踪器中的数据错误

现在你可以删除数据仓条目.

创建一个数据仓，在选举过程中存储选举结果.

In[1]:=

votes = CreateDatabin[]

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填充数据仓并绘制到目前为止每个候选项的得票比例图形.

In[2]:=

DatabinUpload[votes, data = {<|"Alpha" -> 34, "Beta" -> 12, "Gamma" -> 7|>, <| "Alpha" -> 44, "Beta" -> 19, "Gamma" -> 9|>, <|"Alpha" -> 52, "Beta" -> 19, "Gamma" -> 11|>, <|"Alpha" -> 68, "Beta" -> 22, "Gamma" -> 18|>, <|"Alpha" -> 78, "Beta" -> 24, "Gamma" -> 20|>}];

In[3]:=

ListLinePlot[ Merge[Map[Map[Function[val, Round[100.0*val/Total[Values[#]]]], #] &, votes["Entries"]], Identity], PlotRange -> {0, All}, PlotLabel -> "Percentage of Vote as it Came In"]

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手动输入的一个数据点不小心颠倒了两个候选项的值，可以从图上一个错误的交叉看出.

In[4]:=

DatabinAdd[votes, <|"Alpha" -> 86, "Beta" -> 22, "Gamma" -> 26|>];

In[5]:=

ListLinePlot[ Merge[Map[Map[Function[val, Round[100.0*val/Total[Values[#]]]], #] &, votes["Entries"]], Identity], PlotRange -> {0, All}, PlotLabel -> "Percentage of Vote as it Came In"]

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通过删除最近一次条目并添加正确的条目来更正数据仓.

In[6]:=

DatabinRemove[votes, -1];

In[7]:=

DatabinAdd[votes, <|"Alpha" -> 86, "Beta" -> 26, "Gamma" -> 22|>];

In[8]:=

ListLinePlot[ Merge[Map[Map[Function[val, Round[100.0*val/Total[Values[#]]]], #] &, votes["Entries"]], Identity], PlotRange -> {0, All}, PlotLabel -> "Percentage of Vote as it Came In"]

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