_as_pairs(x, ndim, as_index=False)

A helper function for pad that prepares and validates arguments like :None:None:`pad_width` for iteration in pairs.

Parameters

x : {None, scalar, array-like}

The object to broadcast to the shape (ndim , 2).

ndim : int

Number of pairs the broadcasted x will have.

as_index : bool, optional

If x is not None, try to round each element of x to an integer (dtype :None:None:`np.intp`) and ensure every element is positive.

Raises

ValueError

If :None:None:`as_index` is True and x contains negative elements. Or if x is not broadcastable to the shape (ndim , 2).

Returns

pairs : nested iterables, shape (`ndim`, 2)

The broadcasted version of x.

Broadcast x to an array with the shape (ndim , 2).

Examples

See :

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GitHub : /numpy/lib/arraypad.py#454
type: <class 'function'>
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