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/*
 *  ******************************************************************************
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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.
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 *  * SPDX-License-Identifier: Apache-2.0
 *  *****************************************************************************
 */

package org.datavec.api.transform;

import org.datavec.api.transform.reduce.AggregableColumnReduction;
import org.datavec.api.transform.reduce.Reducer;

public enum ReduceOp {
    Prod, Min, Max, Range, //Max - Min
    Append, Prepend, // String operations : concatenate, concatenate with commuted arguments
    Sum, Mean, Stdev, // with Bessel's correction
    UncorrectedStdDev, //without
    Variance, // with Bessel's correction
    PopulationVariance, // without
    Count, CountUnique, TakeFirst, //First value
    TakeLast //Last value

}