cavis/libnd4j/include/ops/declarable/generic/transforms/histogram.cpp

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/*******************************************************************************
* Copyright (c) 2015-2018 Skymind, Inc.
*
* This program and the accompanying materials are made available under the
* terms of the Apache License, Version 2.0 which is available at
* https://www.apache.org/licenses/LICENSE-2.0.
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
* SPDX-License-Identifier: Apache-2.0
******************************************************************************/
//
// @author raver119@gmail.com
//
#include <op_boilerplate.h>
#if NOT_EXCLUDED(OP_histogram)
#include <ops/declarable/CustomOperations.h>
#include <ops/declarable/helpers/transforms.h>
#include <ops/declarable/helpers/histogram.h>
namespace nd4j {
namespace ops {
CUSTOM_OP_IMPL(histogram, 1, 1, false, 0, 1) {
auto input = INPUT_VARIABLE(0);
auto numBins = INT_ARG(0);
auto output = OUTPUT_VARIABLE(0);
REQUIRE_TRUE(numBins == output->lengthOf(), 0, "Histogram: numBins must match output length")
output->nullify();
helpers::histogramHelper(block.launchContext(), *input, *output);
return Status::OK();
}
DECLARE_SHAPE_FN(histogram) {
auto numBins = INT_ARG(0);
return SHAPELIST(ConstantShapeHelper::getInstance()->vectorShapeInfo(numBins, nd4j::DataType::INT64));
}
DECLARE_TYPES(histogram) {
getOpDescriptor()
->setAllowedInputTypes(0, {ALL_INTS, ALL_FLOATS})
->setAllowedOutputTypes({ALL_INTS});
};
}
}
#endif