ValueError: need at least one array to concatenate
程式碼
求上下四分位時報錯
data_QuantileDown = data.quantile(0.25).round()
data_QuantileUp = data.quantile(0.75).round()
報錯
ValueError: need at least one array to concatenate
原因
迴圈求取同一工作簿檔案的不同表的資料時，有一個工作表檔案忘記放入資料。即陣列維度為空時報此錯誤。
解決方案
向本工作表內容填充資料，即保證陣列維度不為空時即可避免此錯誤。這種錯誤還可能有其他的原因導致。其中原因之一可參見
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