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  • DataFrame.to_dict(orient='dict')

    DataFrame.to_dict(orient=’dict’)

    >>> df = pd.DataFrame({'name':[1,2,3],"class":[11,22,33],"price":[111,222,333]})
    >>> df
       class  name  price
    0     11     1    111
    1     22     2    222
    2     33     3    333

    orient : str {‘dict’, ‘list’, ‘series’, ‘split’, ‘records’, ‘index’}
    Determines the type of the values of the dictionary.

    dict (default) : dict like {column -> {index -> value}}

    >>> df.to_dict(orient="dict")
    {'class': {0: 11, 1: 22, 2: 33}, 'name': {0: 1, 1: 2, 2: 3}, 'price': {0: 111, 1: 222, 2: 333}}

    list : dict like {column -> [values]}

    >>> df.to_dict(orient="list")
    {'class': [11, 22, 33], 'name': [1, 2, 3], 'price': [111, 222, 333]}

    series : dict like {column -> Series(values)}

    >>> df.to_dict(orient="series")
    {'class': 0    11
    1    22
    2    33
    Name: class, dtype: int64, 'name': 0    1
    1    2
    2    3
    Name: name, dtype: int64, 'price': 0    111
    1    222
    2    333
    Name: price, dtype: int64}

    split : dict like {index -> [index], columns -> [columns], data -> [values]}

    >>> df.to_dict(orient="split")
    {'index': [0, 1, 2], 'columns': ['class', 'name', 'price'], 'data': [[11, 1, 111], [22, 2, 222], [33, 3, 333]]}

    records : list like [{column -> value}, … , {column -> value}]

    >>> df.to_dict(orient="records")
    [{'class': 11, 'name': 1, 'price': 111}, {'class': 22, 'name': 2, 'price': 222}, {'class': 33, 'name': 3, 'price': 333}]

    index : dict like {index -> {column -> value}}

    >>> df.to_dict(orient="index")
    {0: {'class': 11, 'name': 1, 'price': 111}, 1: {'class': 22, 'name': 2, 'price': 222}, 2: {'class': 33, 'name': 3, 'price': 333}}
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  • 原文地址:https://www.cnblogs.com/lmh001/p/9996141.html
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