本文整理汇总了Python中pandas.core.generic.NDFrame._set_item方法的典型用法代码示例。如果您正苦于以下问题：Python NDFrame._set_item方法的具体用法？Python NDFrame._set_item怎么用？Python NDFrame._set_item使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类pandas.core.generic.NDFrame的用法示例。
在下文中一共展示了NDFrame._set_item方法的5个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: __setitem__
# 需要导入模块: from pandas.core.generic import NDFrame [as 别名]
# 或者: from pandas.core.generic.NDFrame import _set_item [as 别名]
def __setitem__(self, key, value):
_, N, K = self.shape
if isinstance(value, DataFrame):
value = value.reindex(index=self.major_axis, columns=self.minor_axis)
mat = value.values
elif isinstance(value, np.ndarray):
assert value.shape == (N, K)
mat = np.asarray(value)
elif np.isscalar(value):
dtype = _infer_dtype(value)
mat = np.empty((N, K), dtype=dtype)
mat.fill(value)
mat = mat.reshape((1, N, K))
NDFrame._set_item(self, key, mat)示例2: __setitem__
# 需要导入模块: from pandas.core.generic import NDFrame [as 别名]
# 或者: from pandas.core.generic.NDFrame import _set_item [as 别名]
def __setitem__(self, key, value):
_, N, K = self.shape
if isinstance(value, DataFrame):
value = value.reindex(index=self.major_axis, columns=self.minor_axis)
mat = value.values
elif isinstance(value, np.ndarray):
if value.shape != (N, K):
raise AssertionError(("Shape of values must be (%d, %d), " "not (%d, %d)") % ((N, K) + values.shape))
mat = np.asarray(value)
elif np.isscalar(value):
dtype = _infer_dtype(value)
mat = np.empty((N, K), dtype=dtype)
mat.fill(value)
else:
raise TypeError("Cannot set item of type: %s" % str(type(value)))
mat = mat.reshape((1, N, K))
NDFrame._set_item(self, key, mat)示例3: __setitem__
# 需要导入模块: from pandas.core.generic import NDFrame [as 别名]
# 或者: from pandas.core.generic.NDFrame import _set_item [as 别名]
def __setitem__(self, key, value):
shape = tuple(self.shape)
if isinstance(value, self._constructor_sliced):
value = value.reindex(
**self._construct_axes_dict_for_slice(self._AXIS_ORDERS[1:]))
mat = value.values
elif isinstance(value, np.ndarray):
if not ((value.shape == shape[1:])):
raise AssertionError()
mat = np.asarray(value)
elif np.isscalar(value):
dtype, value = _infer_dtype_from_scalar(value)
mat = np.empty(shape[1:], dtype=dtype)
mat.fill(value)
else:
raise TypeError('Cannot set item of type: %s' % str(type(value)))
mat = mat.reshape(tuple([1]) + shape[1:])
NDFrame._set_item(self, key, mat)示例4: __setitem__
# 需要导入模块: from pandas.core.generic import NDFrame [as 别名]
# 或者: from pandas.core.generic.NDFrame import _set_item [as 别名]
def __setitem__(self, key, value):
shape = tuple(self.shape)
if isinstance(value, self._constructor_sliced):
value = value.reindex(**self._construct_axes_dict_for_slice(self._AXIS_ORDERS[1:]))
mat = value.values
elif isinstance(value, np.ndarray):
if value.shape != shape[1:]:
raise ValueError(
"shape of value must be {0}, shape of given " "object was {1}".format(shape[1:], value.shape)
)
mat = np.asarray(value)
elif np.isscalar(value):
dtype, value = _infer_dtype_from_scalar(value)
mat = np.empty(shape[1:], dtype=dtype)
mat.fill(value)
else:
raise TypeError("Cannot set item of type: %s" % str(type(value)))
mat = mat.reshape(tuple([1]) + shape[1:])
NDFrame._set_item(self, key, mat)示例5: __setitem__
# 需要导入模块: from pandas.core.generic import NDFrame [as 别名]
# 或者: from pandas.core.generic.NDFrame import _set_item [as 别名]
def __setitem__(self, key, value):
_, N, K = self.shape
# XXX
if isinstance(value, LongPanel):
if len(value.items) != 1:
raise ValueError('Input panel must have only one item!')
value = value.to_wide()[value.items[0]]
if isinstance(value, DataFrame):
value = value.reindex(index=self.major_axis,
columns=self.minor_axis)
mat = value.values
elif isinstance(value, np.ndarray):
assert(value.shape == (N, K))
mat = np.asarray(value)
elif np.isscalar(value):
dtype = _infer_dtype(value)
mat = np.empty((N, K), dtype=dtype)
mat.fill(value)
mat = mat.reshape((1, N, K))
NDFrame._set_item(self, key, mat)