50 lines
2.1 KiB
Cython
50 lines
2.1 KiB
Cython
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# Copyright (c) 2015, Leland McInnes
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# All rights reserved.
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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# 1. Redistributions of source code must retain the above copyright notice,
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# this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright notice,
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# this list of conditions and the following disclaimer in the documentation
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# and/or other materials provided with the distribution.
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# 3. Neither the name of the copyright holder nor the names of its contributors
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# may be used to endorse or promote products derived from this software without
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# specific prior written permission.
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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from ...utils._typedefs cimport intp_t, float64_t, uint8_t
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cimport numpy as cnp
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# This corresponds to the scipy.cluster.hierarchy format
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ctypedef packed struct HIERARCHY_t:
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intp_t left_node
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intp_t right_node
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float64_t value
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intp_t cluster_size
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# Effectively an edgelist encoding a parent/child pair, along with a value and
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# the corresponding cluster_size in each row providing a tree structure.
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ctypedef packed struct CONDENSED_t:
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intp_t parent
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intp_t child
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float64_t value
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intp_t cluster_size
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cdef extern from "numpy/arrayobject.h":
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intp_t * PyArray_SHAPE(cnp.PyArrayObject *)
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