    001    /*
    002     * Licensed to the Apache Software Foundation (ASF) under one or more
    003     * contributor license agreements.  See the NOTICE file distributed with
    004     * this work for additional information regarding copyright ownership.
    005     * The ASF licenses this file to You under the Apache License, Version 2.0
    006     * (the "License"); you may not use this file except in compliance with
    007     * the License.  You may obtain a copy of the License at
    008     *
    009     *      http://www.apache.org/licenses/LICENSE-2.0
    010     *
    011     * Unless required by applicable law or agreed to in writing, software
    012     * distributed under the License is distributed on an "AS IS" BASIS,
    013     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    014     * See the License for the specific language governing permissions and
    015     * limitations under the License.
    016     */
    017
    018    package org.apache.commons.math.distribution;
    019
    020    import org.apache.commons.math.MathException;
    021
    022    /**
    023     * <p>Interface that signals that a distribution can compute the probability density function
    024     * for a particular point.
    025     * @param <P> the type of the point at which density is to be computed, this
    026     * may be for example <code>Double.</code></p>
    027     *
    028     * <p>This interface is deprecated.  As of version 2.0, the {@link ContinuousDistribution}
    029     * interface will be extended to include a <code>density(double)<code> method.</p>
    030     *
    031     * @deprecated to be removed in math 3.0
    032     * @version $Revision: 1042336 $ $Date: 2010-12-05 13:40:48 +0100 (dim. 05 d??c. 2010) $
    033     */
    034    @Deprecated
    035    public interface HasDensity<P> {
    036
    037        /**
    038         * Compute the probability density function.
    039         * @param x point for which the probability density is requested
    040         * @return probability density at point x
    041         * @throws MathException if probability density cannot be computed at specifed point
    042         */
    043        double density(P x) throws MathException;
    044
    045    }