python - 更改python Datatable中的列类型

Question

是否可以在 python数据表中更改stypes.int8为？stypes.int32

Answer 1

You can easily do it:

Assume you have a DT and a field type is int32

DT = dt.Frame({'x': [1,2,3,4,5]})

and we could like to change its type from int32 to int8 as

DT['x'] = dt.int8

Here is the syntax:

DT['column'] = datatype  # (dt.int32 or dt.str32 etc etcc)

Answer 2

来自Datatable docs：

顾名思义，该包与 R 的 data.table 密切相关，并试图模仿其核心算法和 API。

因此，您可以遵循这一点link并link进行数据类型转换。