AW: AW: [Insight-users] MeanCalculator

[Karthik Krishnan]

That is very wierd. Could you please send me a minimal compiling example 
to illustrate the problem.

Thanks
-karthik

Buerger, Corinna (ext) wrote:

>Hi, 
>
>Thanks for the update. Unfortunately, it did not fix the problem. 
>meanCalculator->GetInputSample()->Size() still outputs 0. What is different now is that Update() does not throw an exception. Still, I cannot go on and compute the covariance matrix.
>
>Bye, 
>
>Corinna
>
>
> 
>
>-----Ursprüngliche Nachricht-----
>Von: Karthik Krishnan [mailto:Karthik.Krishnan at kitware.com] 
>Gesendet: Freitag, 18. August 2006 22:12
>An: Buerger, Corinna (ext)
>Cc: insight-users at itk.org
>Betreff: Re: AW: [Insight-users] MeanCalculator
>
>Another update. Please update Code/Numerics/Statistics/itkListSample.h
>
>That should fix your issue.
>
>Thanks
>-karthik
>
>Buerger, Corinna (ext) wrote:
>
>  
>
>>Hi Karthik, 
>>
>>Thanks for your quick reply!
>>I updated the code and it does throw and exception. Still, I don't understand what is wrong here. As mentioned earlier, when I output the size of my input sample on std::cout, the correct size is displayed. Thanks for your help.
>>
>>Bye, 
>>
>>Corinna
>>
>>
>>-----Ursprüngliche Nachricht-----
>>Von: Karthik Krishnan [mailto:Karthik.Krishnan at kitware.com] 
>>Gesendet: Montag, 14. August 2006 17:40
>>An: Buerger, Corinna (ext)
>>Cc: insight-users at itk.org
>>Betreff: Re: [Insight-users] MeanCalculator
>>
>>Hi Corinna,
>>
>>I've added a safeguard to the itkMeanCalculator.txx, so it throws an 
>>exception if the length of the output is 0. Please update  
>>Code/Numerics/Statistics/itkMeanCalculator.txx and please let me know if 
>>it throws an exception.
>>
>>If it doesn't, sample code would be appreciated.
>>
>>Thanks
>>-karthik
>>
>>Buerger, Corinna (ext) wrote:
>>
>> 
>>
>>    
>>
>>>Hi all,
>>>
>>>I want to use the itk::Statistics::MeanCalculator.
>>>The following lines are a code snippet of mine.
>>>
>>>// start code snippet
>>>MeanCalculatorType::Pointer meanCalculator = MeanCalculatorType::New();
>>>meanCalculator->SetInputSample( dataSample );
>>>meanCalculator->Update();
>>>std::cout << "size of data sample: " << dataSample->Size() << 
>>>std::endl;                                     // outputs 3 (which is 
>>>correct)
>>>std::cout << "size of mean: " << 
>>>meanCalculator->GetOutput()->GetSize() << std::endl;                // 
>>>outputs 0 (why???)
>>>// end code snippet
>>>
>>>dataSample is earlier defined as:
>>>typedef itk::VariableLengthVector< double > DataType;
>>>typedef itk::Statistics::ListSample< DataType > DataSampleType;
>>>DataSampleType::Pointer dataSample;
>>>
>>>Why do I get no output from the MeanCalculator?
>>>Any help is appreciated.
>>>
>>>Regards,
>>>
>>>Corinna
>>>
>>>------------------------------------------------------------------------
>>>
>>>_______________________________________________
>>>Insight-users mailing list
>>>Insight-users at itk.org
>>>http://www.itk.org/mailman/listinfo/insight-users
>>>
>>>
>>>   
>>>
>>>      
>>>
>>_______________________________________________
>>Insight-users mailing list
>>Insight-users at itk.org
>>http://www.itk.org/mailman/listinfo/insight-users
>>
>> 
>>
>>    
>>
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>  
>