Re: [ojAlgo-user] question re: custom MatrixStore<>

[Anders P. <an...@op...>]

Not sure I understand what the problem is. Why can’t you just implement everything you want in that matrix class of yours?

/Anders


> On 5 Jan 2018, at 20:42, Jonathan Shore via ojAlgo-user <oja...@li...> wrote:
> 
> I have created a custom matrix store, that in addition to managing access into the matrix as per the API supplies some additional functionality I need.   My intention is to use it as a 1st class matrix class as a starting point in linear alg computations.   
> 
> However, I've noted that the MatrixStore<Double> interface implements only a subset of the operations that, say, PrimitiveMatrix exposes.  For example I cannot directly call invert() on the matrix store, though I can multiply and call a number of other operations directly.
> 
> If I want to extend the matrix class API, I thought creating a new MatrixStore would be the approach, but it seems that there is a more complex hierarchy of MatrixStore, PhysicalStore, AbstractMatrix, etc which I have not been able to figure out to integrate with.
> 
> My Questions:
> 
> 	• If I want to expose invert and other methods in my custom matrix, what is the best approach to doing so? 
> 	• If MatrixStore is not the best way to create custom Matrices, what should the approach be.  I recognize that MatrixStore most likely refers to the storage / access functionality rather than matrix ops.  I would like to be able to bundle both
> Am stuck at this point.  Any pointers greatly appreciated.
> 
> ---
> Jonathan Shore
> 
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