[jira] [Created] (MATH-653) Rename "AbstractRealVector" to "RealVector"

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[jira] [Created] (MATH-653) Rename "AbstractRealVector" to "RealVector"

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Rename "AbstractRealVector" to "RealVector"
-------------------------------------------

                 Key: MATH-653
                 URL: https://issues.apache.org/jira/browse/MATH-653
             Project: Commons Math
          Issue Type: Task
            Reporter: Gilles
            Assignee: Gilles
            Priority: Trivial
             Fix For: 3.0


"AbstractRealVector" is the only implementation of the "RealVector" interface.


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[jira] [Commented] (MATH-653) Rename "AbstractRealVector" to "RealVector"

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    [ https://issues.apache.org/jira/browse/MATH-653?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13092083#comment-13092083 ]

Gilles commented on MATH-653:
-----------------------------

From Sébastien, on the "dev" ML (in the thread with subject "RealMatrix.set(double)"):
{quote}
I personnaly have come to dislike the schizophrenia in the RealVector
interface between double[] and RealVector. As double[] is the simplest
representation of a vector, all methods which take a RealVector as an
argument in the RealVector interface are duplicated to also take a
double[] as an argument. While this is very flexible for end-users, it
is a bit of a pain when you want to extend this interface in a
consistent way (and it also make the classes implementing RealVector
quite cluttered). I'm just wondering what the real benefit is, since
the existing hierarchy allows (at virtually no cost) the creation of a
RealArrayVector from a double[] without taking first a (costly) deep
copy of the specified double[].
For example, for an end-user, it's not much of a hassle to write
v.add(new ArrayRealVector(w, false))
instead of v.add(w)
w being a double[].
{quote}

I agree.
Also because in "AbstractRealVector" many of the method that take a "double[]" argument actually delegate to the sibling method that take an "ArrayRealVector" argument, which looks fairly strange (a superclass relying on one of its subclasses). Even stranger, some methods of the "RealVector" interface are not defined in "AbstractRealVector" e.g.
{code}
RealVector ebeDivide(RealVector)
{code}
although its equivalent with a "double[]" is defined and seems to call the non-existent one above!
Of course, it works because of polymorphism and the fact that "AbstractRealVector" can never be instantiated, but it makes the code quite unobvious.

Hence, I'd like to remove all the method that take a "double[]" argument as part of this issue.
Is there any objections?


> Rename "AbstractRealVector" to "RealVector"
> -------------------------------------------
>
>                 Key: MATH-653
>                 URL: https://issues.apache.org/jira/browse/MATH-653
>             Project: Commons Math
>          Issue Type: Task
>            Reporter: Gilles
>            Assignee: Gilles
>            Priority: Trivial
>             Fix For: 3.0
>
>
> "AbstractRealVector" is the only implementation of the "RealVector" interface.

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[jira] [Commented] (MATH-653) Rename "AbstractRealVector" to "RealVector"

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    [ https://issues.apache.org/jira/browse/MATH-653?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13092094#comment-13092094 ]

Gilles commented on MATH-653:
-----------------------------

Also, as already noted elsewhere, the "getData()" method is redundant with "toArray()". One or the other should go.

> Rename "AbstractRealVector" to "RealVector"
> -------------------------------------------
>
>                 Key: MATH-653
>                 URL: https://issues.apache.org/jira/browse/MATH-653
>             Project: Commons Math
>          Issue Type: Task
>            Reporter: Gilles
>            Assignee: Gilles
>            Priority: Trivial
>             Fix For: 3.0
>
>
> "AbstractRealVector" is the only implementation of the "RealVector" interface.

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[jira] [Issue Comment Edited] (MATH-653) Rename "AbstractRealVector" to "RealVector"

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Gilles edited comment on MATH-653 at 8/26/11 10:23 PM:
-------------------------------------------------------

From Sébastien, on the "dev" ML (in the thread with subject "RealMatrix.set(double)"):
{quote}
I personnaly have come to dislike the schizophrenia in the RealVector
interface between double[] and RealVector. As double[] is the simplest
representation of a vector, all methods which take a RealVector as an
argument in the RealVector interface are duplicated to also take a
double[] as an argument. While this is very flexible for end-users, it
is a bit of a pain when you want to extend this interface in a
consistent way (and it also make the classes implementing RealVector
quite cluttered). I'm just wondering what the real benefit is, since
the existing hierarchy allows (at virtually no cost) the creation of a
RealArrayVector from a double[] without taking first a (costly) deep
copy of the specified double[].
For example, for an end-user, it's not much of a hassle to write
v.add(new ArrayRealVector(w, false))
instead of v.add(w)
w being a double[].
{quote}

I agree.
Also for the reason that in "AbstractRealVector" many of the methods taking a "double[]" argument actually delegate to the sibling method that taking an "ArrayRealVector" argument, which looks fairly strange (a superclass relying on one of its subclasses). Even stranger, some methods of the "RealVector" interface are not defined in "AbstractRealVector" e.g.
{code}
RealVector ebeDivide(RealVector)
{code}
although its equivalent with a "double[]" is defined and seems to call the non-existent one above!
Of course, it works thanks to polymorphism and the fact that "AbstractRealVector" can never be instantiated; however it makes the code quite unobvious.

Hence, I'd like to remove all the methods that take a "double[]" argument as part of this issue.
Is there any objection?


      was (Author: erans):
    From Sébastien, on the "dev" ML (in the thread with subject "RealMatrix.set(double)"):
{quote}
I personnaly have come to dislike the schizophrenia in the RealVector
interface between double[] and RealVector. As double[] is the simplest
representation of a vector, all methods which take a RealVector as an
argument in the RealVector interface are duplicated to also take a
double[] as an argument. While this is very flexible for end-users, it
is a bit of a pain when you want to extend this interface in a
consistent way (and it also make the classes implementing RealVector
quite cluttered). I'm just wondering what the real benefit is, since
the existing hierarchy allows (at virtually no cost) the creation of a
RealArrayVector from a double[] without taking first a (costly) deep
copy of the specified double[].
For example, for an end-user, it's not much of a hassle to write
v.add(new ArrayRealVector(w, false))
instead of v.add(w)
w being a double[].
{quote}

I agree.
Also because in "AbstractRealVector" many of the method that take a "double[]" argument actually delegate to the sibling method that take an "ArrayRealVector" argument, which looks fairly strange (a superclass relying on one of its subclasses). Even stranger, some methods of the "RealVector" interface are not defined in "AbstractRealVector" e.g.
{code}
RealVector ebeDivide(RealVector)
{code}
although its equivalent with a "double[]" is defined and seems to call the non-existent one above!
Of course, it works because of polymorphism and the fact that "AbstractRealVector" can never be instantiated, but it makes the code quite unobvious.

Hence, I'd like to remove all the method that take a "double[]" argument as part of this issue.
Is there any objections?

 

> Rename "AbstractRealVector" to "RealVector"
> -------------------------------------------
>
>                 Key: MATH-653
>                 URL: https://issues.apache.org/jira/browse/MATH-653
>             Project: Commons Math
>          Issue Type: Task
>            Reporter: Gilles
>            Assignee: Gilles
>            Priority: Trivial
>             Fix For: 3.0
>
>
> "AbstractRealVector" is the only implementation of the "RealVector" interface.

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[jira] [Commented] (MATH-653) Rename "AbstractRealVector" to "RealVector"

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Gilles commented on MATH-653:
-----------------------------

Renaming done in revision 1162511.


> Rename "AbstractRealVector" to "RealVector"
> -------------------------------------------
>
>                 Key: MATH-653
>                 URL: https://issues.apache.org/jira/browse/MATH-653
>             Project: Commons Math
>          Issue Type: Task
>            Reporter: Gilles
>            Assignee: Gilles
>            Priority: Trivial
>             Fix For: 3.0
>
>
> "AbstractRealVector" is the only implementation of the "RealVector" interface.

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[jira] [Commented] (MATH-653) Rename "AbstractRealVector" to "RealVector"

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Phil Steitz commented on MATH-653:
----------------------------------

Thanks for doing this, Gilles.  I am fine with getting rid of the double[] clutter and also tossing one of getData() and toArray().  I don't really care which one.  I guess I would marginally prefer toArray as the keeper.

I just committed a bunch of javadoc improvements (at least I hope they are improvements) in r1162543.

> Rename "AbstractRealVector" to "RealVector"
> -------------------------------------------
>
>                 Key: MATH-653
>                 URL: https://issues.apache.org/jira/browse/MATH-653
>             Project: Commons Math
>          Issue Type: Task
>            Reporter: Gilles
>            Assignee: Gilles
>            Priority: Trivial
>             Fix For: 3.0
>
>
> "AbstractRealVector" is the only implementation of the "RealVector" interface.

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[jira] [Commented] (MATH-653) Rename "AbstractRealVector" to "RealVector"

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Gilles commented on MATH-653:
-----------------------------

Removed methods taking a "double[]" arguments from "RealVector" (revision 1162629).

I've left them in "ArrayRealVector"; they seem to make sense there because the "double[]" is the underlying storage of that class.
Also, they are called within methods that override the base class ones. However, if it is preferable that subclasses do not contain methods that are not in the base class interface, we can either
* inline the specialized code and remove the methods, or
* make those methods private.

What do you think?


> Rename "AbstractRealVector" to "RealVector"
> -------------------------------------------
>
>                 Key: MATH-653
>                 URL: https://issues.apache.org/jira/browse/MATH-653
>             Project: Commons Math
>          Issue Type: Task
>            Reporter: Gilles
>            Assignee: Gilles
>            Priority: Trivial
>             Fix For: 3.0
>
>
> "AbstractRealVector" is the only implementation of the "RealVector" interface.

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[jira] [Commented] (MATH-653) Rename "AbstractRealVector" to "RealVector"

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    [ https://issues.apache.org/jira/browse/MATH-653?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13092656#comment-13092656 ]

Sébastien Brisard commented on MATH-653:
----------------------------------------

Gilles,
I would favor inlining.
I'm still working on iterative solvers, so if you want, I can take care of {{RealLinearOperator}} (which was added for this special purpose). Indeed, following what you've just done {{double[] operate(double[] x)}} should probably be removed from this class. Question is: should it also disappear from the daughter class {{AbstractRealMatrix}}? As an aside, is there any plan to rename {{AbstractRealMatrix}} to {{RealMatrix}}?
Since I'm still working on the interface of linear solvers, I'll remove the method {{solve(RealLinearOperator, double[], double[]}}, and keep only {{solve(RealLinearOperator, RealVector, RealVector}} before I submit anything.
I guess the next step (setting apart the refactoring of RealMatrix/AbstractRealMatrix in the same fashion) would be to look into {{DecompositionSolver}} as well, and remove any methods taking {{double[]}} as an input.

> Rename "AbstractRealVector" to "RealVector"
> -------------------------------------------
>
>                 Key: MATH-653
>                 URL: https://issues.apache.org/jira/browse/MATH-653
>             Project: Commons Math
>          Issue Type: Task
>            Reporter: Gilles
>            Assignee: Gilles
>            Priority: Trivial
>             Fix For: 3.0
>
>
> "AbstractRealVector" is the only implementation of the "RealVector" interface.

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[jira] [Commented] (MATH-653) Rename "AbstractRealVector" to "RealVector"

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Gilles commented on MATH-653:
-----------------------------

{quote}
I would favor inlining.
{quote}

Done in revision 1162800.

{quote}
I can take care of RealLinearOperator [...]
{quote}

OK.

{quote}
any plan to rename AbstractRealMatrix to RealMatrix?
{quote}

That certainly should be done. ;)
Maybe better wait for the conclusion of the ongoing discussion on what to remove/rename in that interface/class...

{quote}
DecompositionSolver [...] remove any methods taking double[] as an input.
{quote}

You are welcome to do it.


> Rename "AbstractRealVector" to "RealVector"
> -------------------------------------------
>
>                 Key: MATH-653
>                 URL: https://issues.apache.org/jira/browse/MATH-653
>             Project: Commons Math
>          Issue Type: Task
>            Reporter: Gilles
>            Assignee: Gilles
>            Priority: Trivial
>             Fix For: 3.0
>
>
> "AbstractRealVector" is the only implementation of the "RealVector" interface.

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[jira] [Commented] (MATH-653) Rename "AbstractRealVector" to "RealVector"

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Sébastien Brisard commented on MATH-653:
----------------------------------------

{quote}
I can take care of RealLinearOperator [...]
{quote}
Done in revision 1163515 (took me some time to find out how to commit). As agreed, I left RealMatrix untouched (had to remove a @Override tag).

> Rename "AbstractRealVector" to "RealVector"
> -------------------------------------------
>
>                 Key: MATH-653
>                 URL: https://issues.apache.org/jira/browse/MATH-653
>             Project: Commons Math
>          Issue Type: Task
>            Reporter: Gilles
>            Assignee: Gilles
>            Priority: Trivial
>             Fix For: 3.0
>
>
> "AbstractRealVector" is the only implementation of the "RealVector" interface.

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[jira] [Commented] (MATH-653) Rename "AbstractRealVector" to "RealVector"

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Sébastien Brisard commented on MATH-653:
----------------------------------------

OK, I've started to look into the {{DecompositionSolver}}. Unfortunately, the method {{solve(double[])}} gets called in {{GaussNewtonOptimizer}}. This class makes thorough use of {{double[]}} as a representation of vectors. There might be a gain in replacing occurences of {{double[]}} by {{ArrayRealVector}}. This might be like opening Pandora's box, though.
For the time being, I can propose a quick fix for {{GaussNewtonOptimizer}} to call {{solve(RealVector)}} instead of {{solve(double[])}}, and work on all implementations of {{DecompositionSolver}} so as to remove {{solve(double[])}}, and keep only {{solve(RealVector)}} (and possibly {{solve(ArrayRealVector)}}).

How do you like that?

> Rename "AbstractRealVector" to "RealVector"
> -------------------------------------------
>
>                 Key: MATH-653
>                 URL: https://issues.apache.org/jira/browse/MATH-653
>             Project: Commons Math
>          Issue Type: Task
>            Reporter: Gilles
>            Assignee: Gilles
>            Priority: Trivial
>             Fix For: 3.0
>
>
> "AbstractRealVector" is the only implementation of the "RealVector" interface.

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[jira] [Commented] (MATH-653) Rename "AbstractRealVector" to "RealVector"

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Luc Maisonobe commented on MATH-653:
------------------------------------

OK from me.

> Rename "AbstractRealVector" to "RealVector"
> -------------------------------------------
>
>                 Key: MATH-653
>                 URL: https://issues.apache.org/jira/browse/MATH-653
>             Project: Commons Math
>          Issue Type: Task
>            Reporter: Gilles
>            Assignee: Gilles
>            Priority: Trivial
>             Fix For: 3.0
>
>
> "AbstractRealVector" is the only implementation of the "RealVector" interface.

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[jira] [Commented] (MATH-653) Rename "AbstractRealVector" to "RealVector"

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Sébastien Brisard commented on MATH-653:
----------------------------------------

Done in rev 1164615.

> Rename "AbstractRealVector" to "RealVector"
> -------------------------------------------
>
>                 Key: MATH-653
>                 URL: https://issues.apache.org/jira/browse/MATH-653
>             Project: Commons Math
>          Issue Type: Task
>            Reporter: Gilles
>            Assignee: Gilles
>            Priority: Trivial
>             Fix For: 3.0
>
>
> "AbstractRealVector" is the only implementation of the "RealVector" interface.

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[jira] [Commented] (MATH-653) Rename "AbstractRealVector" to "RealVector"

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Sébastien Brisard commented on MATH-653:
----------------------------------------

In rev. 1164618: removed references do {{DecompositionSolver.solve(double[])}} from all unit tests of {{RealMatrix}} implementations.

> Rename "AbstractRealVector" to "RealVector"
> -------------------------------------------
>
>                 Key: MATH-653
>                 URL: https://issues.apache.org/jira/browse/MATH-653
>             Project: Commons Math
>          Issue Type: Task
>            Reporter: Gilles
>            Assignee: Gilles
>            Priority: Trivial
>             Fix For: 3.0
>
>
> "AbstractRealVector" is the only implementation of the "RealVector" interface.

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[jira] [Issue Comment Edited] (MATH-653) Rename "AbstractRealVector" to "RealVector"

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Sébastien Brisard edited comment on MATH-653 at 9/2/11 4:47 PM:
----------------------------------------------------------------

* In rev. 1164618: removed references do {{DecompositionSolver.solve(double[])}} from all unit tests of {{RealMatrix}} implementations.
* In rev. 1164622: same with unit tests of {{DecompositionSolver}} implementations.

      was (Author: celestin):
    In rev. 1164618: removed references do {{DecompositionSolver.solve(double[])}} from all unit tests of {{RealMatrix}} implementations.
 

> Rename "AbstractRealVector" to "RealVector"
> -------------------------------------------
>
>                 Key: MATH-653
>                 URL: https://issues.apache.org/jira/browse/MATH-653
>             Project: Commons Math
>          Issue Type: Task
>            Reporter: Gilles
>            Assignee: Gilles
>            Priority: Trivial
>             Fix For: 3.0
>
>
> "AbstractRealVector" is the only implementation of the "RealVector" interface.

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[jira] [Commented] (MATH-653) Rename "AbstractRealVector" to "RealVector"

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Sébastien Brisard commented on MATH-653:
----------------------------------------

Updated CholeskyDecompositionImpl in rev. 1165155

> Rename "AbstractRealVector" to "RealVector"
> -------------------------------------------
>
>                 Key: MATH-653
>                 URL: https://issues.apache.org/jira/browse/MATH-653
>             Project: Commons Math
>          Issue Type: Task
>            Reporter: Gilles
>            Assignee: Gilles
>            Priority: Trivial
>             Fix For: 3.0
>
>
> "AbstractRealVector" is the only implementation of the "RealVector" interface.

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[jira] [Commented] (MATH-653) Rename "AbstractRealVector" to "RealVector"

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In reply to this post by ASF GitHub Bot (Jira)

    [ https://issues.apache.org/jira/browse/MATH-653?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13097760#comment-13097760 ]

Sébastien Brisard commented on MATH-653:
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* {{EigenDecompositionImpl}} done with in rev. 1165505
* {{LUDecompositionImpl}} in rev. 1165506
* {{QRDecompositionSolver}} in rev. 1165507
* {{SingularValueDecompositionSolver}} in rev. 1165508


> Rename "AbstractRealVector" to "RealVector"
> -------------------------------------------
>
>                 Key: MATH-653
>                 URL: https://issues.apache.org/jira/browse/MATH-653
>             Project: Commons Math
>          Issue Type: Task
>            Reporter: Gilles
>            Assignee: Gilles
>            Priority: Trivial
>             Fix For: 3.0
>
>
> "AbstractRealVector" is the only implementation of the "RealVector" interface.

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[jira] [Resolved] (MATH-653) Rename "AbstractRealVector" to "RealVector"

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In reply to this post by ASF GitHub Bot (Jira)

     [ https://issues.apache.org/jira/browse/MATH-653?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sébastien Brisard resolved MATH-653.
------------------------------------

    Resolution: Fixed

> Rename "AbstractRealVector" to "RealVector"
> -------------------------------------------
>
>                 Key: MATH-653
>                 URL: https://issues.apache.org/jira/browse/MATH-653
>             Project: Commons Math
>          Issue Type: Task
>            Reporter: Gilles
>            Assignee: Gilles
>            Priority: Trivial
>             Fix For: 3.0
>
>
> "AbstractRealVector" is the only implementation of the "RealVector" interface.

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