進入大數據前的資料清理術∣excel、powerquery、trifacta 超解析 蘇世榮老師
Synopsis
想進行大數據分析，就必須先處理大量的資料，你知道一般得花多少時間來整理龐雜資料嗎？答案是整個分析專案80% 的時間！
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