org.nd4j.linalg.api.ops.custom.Triu Maven / Gradle / Ivy
/* ******************************************************************************
* Copyright (c) 2020 Konduit K.K.
*
* 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.custom;
import lombok.NoArgsConstructor;
import org.nd4j.autodiff.samediff.SDVariable;
import org.nd4j.autodiff.samediff.SameDiff;
import org.nd4j.linalg.api.buffer.DataType;
import org.nd4j.linalg.api.ndarray.INDArray;
import org.nd4j.linalg.api.ops.DynamicCustomOp;
import org.nd4j.linalg.factory.Nd4j;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
@NoArgsConstructor
public class Triu extends DynamicCustomOp {
private int diag = 0;
public Triu(SameDiff sameDiff, SDVariable in, int diag) {
super(sameDiff, new SDVariable[]{in});
addIArgument(diag);
this.diag=diag;
}
public Triu(SameDiff sameDiff, SDVariable in) {
super(sameDiff, new SDVariable[]{in});
}
public Triu(INDArray input, int diag) {
super(new INDArray[]{input}, null);
addIArgument(diag);
this.diag=diag;
}
@Override
public String opName() {
return "triu";
}
@Override
public List calculateOutputDataTypes(List inputDataTypes) {
return Collections.singletonList(arg(0).dataType());
}
@Override
public List doDiff(List f1) {
return new TriuBp(sameDiff, arg(0), f1.get(0), diag).outputs();
}
}