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Diffstat (limited to 'src/main/java/org/apache/commons/math3/fitting/leastsquares/ValueAndJacobianFunction.java')
-rw-r--r-- | src/main/java/org/apache/commons/math3/fitting/leastsquares/ValueAndJacobianFunction.java | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/src/main/java/org/apache/commons/math3/fitting/leastsquares/ValueAndJacobianFunction.java b/src/main/java/org/apache/commons/math3/fitting/leastsquares/ValueAndJacobianFunction.java new file mode 100644 index 0000000..180e328 --- /dev/null +++ b/src/main/java/org/apache/commons/math3/fitting/leastsquares/ValueAndJacobianFunction.java @@ -0,0 +1,44 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You 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 org.apache.commons.math3.fitting.leastsquares; + +import org.apache.commons.math3.linear.RealMatrix; +import org.apache.commons.math3.linear.RealVector; + +/** + * A interface for functions that compute a vector of values and can compute their + * derivatives (Jacobian). + * + * @since 3.4 + */ +public interface ValueAndJacobianFunction extends MultivariateJacobianFunction { + /** + * Compute the value. + * + * @param params Point. + * @return the value at the given point. + */ + RealVector computeValue(final double[] params); + + /** + * Compute the Jacobian. + * + * @param params Point. + * @return the Jacobian at the given point. + */ + RealMatrix computeJacobian(final double[] params); +} |