/*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://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.
*/
package com.facebook.presto.ml;
import com.google.common.collect.ImmutableMap;
import java.util.ArrayList;
import java.util.List;
import java.util.Random;
public final class TestUtils
{
private TestUtils() {}
public static Dataset getDataset()
{
int datapoints = 100;
List<Double> labels = new ArrayList<>();
List<FeatureVector> features = new ArrayList<>();
Random rand = new Random(0);
for (int i = 0; i < datapoints; i++) {
double label = rand.nextDouble() < 0.5 ? 0 : 1;
labels.add(label);
features.add(new FeatureVector(0, label + rand.nextGaussian()));
}
return new Dataset(labels, features, ImmutableMap.of(0, "first", 1, "second"));
}
}