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Posted to issues@commons.apache.org by "Gilles (JIRA)" <ji...@apache.org> on 2012/06/10 15:28:43 UTC
[jira] [Created] (MATH-804) Make "CurveFitter" a generic class
Gilles created MATH-804:
---------------------------
Summary: Make "CurveFitter" a generic class
Key: MATH-804
URL: https://issues.apache.org/jira/browse/MATH-804
Project: Commons Math
Issue Type: Improvement
Reporter: Gilles
Assignee: Gilles
Priority: Trivial
Fix For: 3.1
In order to enhance compile-time robustness, it is proposed to parameterize the "CurveFitter" class with the type of the function to be used for the fit, i.e.:
{code}
public class CurveFitter<T extends ParametricUnivariateFunction> {
// ...
public double[] fit(T f, final double[] initialGuess) {
// ...
}
}
{code}
Thus enforcing that instances of subclasses like "PolynomialFitter" defined as
{code}
public class PolynomialFitter extends CurveFitter<PolynomialFunction.Parametric> {
// ...
}
{code}
cannot call the "fit" method with a different function argument.
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[jira] [Resolved] (MATH-804) Make "CurveFitter" a generic class
Posted by "Gilles (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MATH-804?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Gilles resolved MATH-804.
-------------------------
Resolution: Fixed
> Make "CurveFitter" a generic class
> ----------------------------------
>
> Key: MATH-804
> URL: https://issues.apache.org/jira/browse/MATH-804
> Project: Commons Math
> Issue Type: Improvement
> Reporter: Gilles
> Assignee: Gilles
> Priority: Trivial
> Fix For: 3.1
>
>
> In order to enhance compile-time robustness, it is proposed to parameterize the "CurveFitter" class with the type of the function to be used for the fit, i.e.:
> {code}
> public class CurveFitter<T extends ParametricUnivariateFunction> {
> // ...
> public double[] fit(T f, final double[] initialGuess) {
> // ...
> }
> }
> {code}
> Thus enforcing that instances of subclasses like "PolynomialFitter" defined as
> {code}
> public class PolynomialFitter extends CurveFitter<PolynomialFunction.Parametric> {
> // ...
> }
> {code}
> cannot call the "fit" method with a different function argument.
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[jira] [Commented] (MATH-804) Make "CurveFitter" a generic class
Posted by "Gilles (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MATH-804?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13292531#comment-13292531 ]
Gilles commented on MATH-804:
-----------------------------
Changes committed in revision 1348613.
> Make "CurveFitter" a generic class
> ----------------------------------
>
> Key: MATH-804
> URL: https://issues.apache.org/jira/browse/MATH-804
> Project: Commons Math
> Issue Type: Improvement
> Reporter: Gilles
> Assignee: Gilles
> Priority: Trivial
> Fix For: 3.1
>
>
> In order to enhance compile-time robustness, it is proposed to parameterize the "CurveFitter" class with the type of the function to be used for the fit, i.e.:
> {code}
> public class CurveFitter<T extends ParametricUnivariateFunction> {
> // ...
> public double[] fit(T f, final double[] initialGuess) {
> // ...
> }
> }
> {code}
> Thus enforcing that instances of subclasses like "PolynomialFitter" defined as
> {code}
> public class PolynomialFitter extends CurveFitter<PolynomialFunction.Parametric> {
> // ...
> }
> {code}
> cannot call the "fit" method with a different function argument.
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