cfdm.DomainAncillary.__getitem__

DomainAncillary.__getitem__(indices)[source]

Return a subspace of the construct defined by indices.

f.__getitem__(indices) <==> f[indices]

The new subspace contains the same properties and similar components to the original construct, but the latter are also subspaced over their corresponding axes.

Indexing follows rules that are very similar to the numpy indexing rules, the only differences being:

  • An integer index i takes the i-th element but does not reduce the rank by one.

  • When two or more dimensions’ indices are sequences of integers then these indices work independently along each dimension (similar to the way vector subscripts work in Fortran). This is the same behaviour as indexing on a Variable object of the netCDF4 package.

Returns
DomainAncillary

The subspace of the construct.

Examples:

>>> f.shape
(1, 10, 9)
>>> f[:, :, 1].shape
(1, 10, 1)
>>> f[:, 0].shape
(1, 1, 9)
>>> f[..., 6:3:-1, 3:6].shape
(1, 3, 3)
>>> f[0, [2, 9], [4, 8]].shape
(1, 2, 2)
>>> f[0, :, -2].shape
(1, 10, 1)