pandas 報錯：【sys:1: DtypeWarning: Columns (15) have mixed types. Specify dtype option on import or set low_memory=False.】

阿新 • • 發佈：2018-08-22

data 指定 div als ram 有效加載 tro hunk

錯誤原因

報錯提示：“sys:1: DtypeWarning: Columns (15) have mixed types. Specify dtype option on import or set low_memory=False.”

錯誤：類型混淆

解決

import pandas as pd
pd = pd.read_csv(Your_path, low_memory=False)

關鍵點

low_memory

low_memory : boolean, default True

# 分塊加載到內存，再低內存消耗中解析，但是可能出現類型混淆。 

# 確保類型不被混淆需要設置為False，或者使用dtype 參數指定類型。
# 註意使用chunksize 或者iterator 參數分塊讀入會將整個文件讀入到一個Dataframe，而忽略類型（只能在C解析器中有效）

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pandas 報錯：【sys:1: DtypeWarning: Columns (15) have mixed types. Specify dtype option on import or set low_memory=False.】

錯誤原因

解決

關鍵點

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pandas 報錯：【sys:1: DtypeWarning: Columns (15) have mixed types. Specify dtype option on import or set low_memory=False.】

錯誤原因

解決

關鍵點

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