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From "Gilles (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MATH-858) BlockRealMatrix java.beans.IntrospectionException
Date Sat, 08 Sep 2012 12:07:07 GMT

    [ https://issues.apache.org/jira/browse/MATH-858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13451322#comment-13451322
] 

Gilles commented on MATH-858:
-----------------------------

Which version of Commons Math are you using?

In the current development version, this code:
{noformat}
BlockRealMatrix correlationMatrix = new PearsonsCorrelation().computeCorrelationMatrix(data);
{noformat}
does not even compile.

When you report a bug, please provide a fully working minimal code example.

Could you also provide the stack trace of the exception?

Moreover I cannot find any Commons Math error message that contains the string "mismatch between
indexed read"...

                
> BlockRealMatrix java.beans.IntrospectionException
> -------------------------------------------------
>
>                 Key: MATH-858
>                 URL: https://issues.apache.org/jira/browse/MATH-858
>             Project: Commons Math
>          Issue Type: Bug
>    Affects Versions: 3.0
>         Environment: MacOSX 10.8.1 (Macbook Air 4Gb RAM)- IntelliJ IDEA 11 - Grails 2.10

>            Reporter: Massimiliano Dongiovanni
>              Labels: BlockRealMatrix
>
> When I try to read properties (like getColumnDimension) of an instance of class BlockRealMatrix
(org.apache.commons.math3.linear.BlockRealMatrix), system raise this exception:
> Class - java.beans.IntrospectionException
> Message - type mismatch between indexed read and indexed write methods: columnMatrix
> =================
> Code
> import org.apache.commons.math3.stat.correlation.PearsonsCorrelation
> import strategoianalysis.util.math.matrix.MatrixStatutils
> import org.apache.commons.math3.linear.*
> class JohnsonRWAController {
>     private double[] computeRWA(double[][] data) {
> BlockRealMatrix correlationMatrix = new PearsonsCorrelation().computeCorrelationMatrix(data)
>         int rowDim = correlationMatrix.getRowDimension() 
>         
>       //EXCEPTION HERE
> .... etc.

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