eye

Returns a double eye slice.

template eye(E = double, size_t dimension = 1)
auto eye(size_t m, size_t n, size_t k)
pure
auto
eye
(
size_t dimension
)
(
size_t m
,
size_t n = 0
,
size_t k = 0
)

Parameters

dimension: axis to apply k offset
m size_t: number of rows of output
n size_t: number of columns of output (default = 0, sets n = m)
k size_t: offset for start of diagonal (default = 0)

Return Value

Type: auto

new eye slice

Examples

assert(eye(2) == [[1.0, 0.0],
                  [0.0, 1.0]]);

assert(eye(2, 3) == [[1.0, 0.0, 0.0],
                     [0.0, 1.0, 0.0]]);
assert(eye(2, 3, 1) == [[0.0, 1.0, 0.0],
                        [0.0, 0.0, 1.0]]);
assert(eye(2, 3, 2) == [[0.0, 0.0, 1.0],
                        [0.0, 0.0, 0.0]]);
assert(eye!0(2, 3, 1) == [[0.0, 0.0, 0.0],
                          [1.0, 0.0, 0.0]]);

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numir core creation functions

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