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龍家俊教你 機器學習 day56 DataFrame DataFrame是一個類似於二維數組或表格(如excel)的對象,既有行索引,又有列索引 行索引,表明不同行,橫向索引,叫index,0軸,axis=0 列索引,表名不同列,縱向索引,叫columns,1軸,axis=1

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