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Ex06_KFoldIteratorFromDataSet.java
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Ex06_KFoldIteratorFromDataSet.java
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/* *****************************************************************************
*
*
*
* 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.
* See the NOTICE file distributed with this work for additional
* information regarding copyright ownership.
*
* 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.deeplearning4j.datapipelineexamples.loading;
import org.nd4j.linalg.api.ndarray.INDArray;
import org.nd4j.linalg.dataset.DataSet;
import org.nd4j.linalg.dataset.api.iterator.KFoldIterator;
import org.nd4j.linalg.factory.Nd4j;
/**
*
*
* @author Robert Altena
*/
public class Ex06_KFoldIteratorFromDataSet {
public static void main(String[] args) {
INDArray x = Nd4j.create(new float[][]{{1,2},{2,3},{3,4},{4,5}});
INDArray y = Nd4j.create(new float[][]{{1},{2},{3},{4}});
DataSet ds = new DataSet(x,y);
System.out.println("Full dataset: ");
System.out.println(ds);
KFoldIterator kIter = new KFoldIterator(2, ds);
while (kIter.hasNext()){
DataSet now = kIter.next();
DataSet test = kIter.testFold();
System.out.println();
System.out.println("Train: ");
System.out.println(now);
System.out.println("Test: ");
System.out.println(test);
}
}
}