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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
******************************************************************************/
package org.nd4j.linalg.api.ops.impl.accum;
import org.nd4j.autodiff.samediff.SDVariable;
import org.nd4j.autodiff.samediff.SameDiff;
import org.nd4j.linalg.api.ndarray.INDArray;
import org.nd4j.linalg.api.ops.BaseAccumulation;
import org.nd4j.linalg.api.shape.Shape;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
/**
* Calculate the min over an array
*
* @author Adam Gibson
*/
public class Min extends BaseAccumulation {
public Min(SameDiff sameDiff, SDVariable i_v, boolean keepDims, int[] dimensions) {
super(sameDiff, i_v, dimensions, keepDims);
}
public Min() {
}
public Min(INDArray x, INDArray y, INDArray z, long n) {
super(x, y, z, n);
}
public Min(INDArray x, INDArray y, long n) {
super(x, y, n);
}
public Min(INDArray x) {
super(x);
}
public Min(INDArray x, INDArray y) {
super(x, y);
}
public Min(INDArray x, INDArray y, INDArray z, boolean newFormat, boolean keepDims, int[] dimensions) {
super(x, y, z, newFormat, keepDims, dimensions);
}
@Override
public int opNum() {
return 4;
}
@Override
public String opName() {
return "reduce_min";
}
@Override
public double zeroDouble() {
return Double.MAX_VALUE;
}
@Override
public float zeroFloat() {
return Float.MAX_VALUE;
}
@Override
public float zeroHalf() {
return 65503.0f;
}
@Override
public String onnxName() {
return "ReduceMin";
}
@Override
public String tensorflowName() {
return "Min";
}
@Override
public List doDiff(List grad) {
return Collections.singletonList(f().minBp(arg(), grad.get(0), keepDims, dimensions));
}
@Override
public Type getOpType() {
return Type.REDUCE;
}
}