Hi, The CM regression module uses LU & QR decomposition and basic matrix operations like multiply, add/subtract, transpose, inverse, as well as functionalities like getting a submatrix, getting dimensions etc…. All of which EJML provides as far as I’ve looked. But I also expect there to be perhaps large differences in the port due to Streams….
Cheers, -Ben From: Gilles Sadowski Sent: Friday, June 21, 2019 8:18 PM To: Commons Developers List Subject: Re: [GSoC][Commons][STATISTICS][Regression][Matrix] Separate modulefor StatisticsMatrix (simple extension of EJML's SimpleBase) in commonsstatistics? Hi. Le ven. 21 juin 2019 à 14:38, Ben Nguyen <bennguye...@gmail.com> a écrit : > > Hello, > > Mr. Gilles Sadowski suggested to me on Slack that StatisticsMatrix and future > extensions of EJML’s code should go into it’s own component. Not exactly; I suggested that 1. there be an interface defined in [Statistics] for matrix that would shield its API from a future change of its implementation. [Now it can be a subclass of EJML, but what if we want to change later? Do we want to support an external API even when it's not used to perform the computations?] 2. utilities (like the matrix interface) that can be used by several modules of [Statistics] are best defined in a separate (maven) module. > So based on my understanding; should there be a general matrix module to use > inside of commons statistics which uses the EJML? Which matrix functionalities are needed for the "regression" module? > Does anyone think another statistics component (besides regression) will need > matrices and it’s operations? You could get the answer by looking at the [Math] codes. Regards, Gilles > > Thank you for your input, > Cheers, > -Ben Nguyen > --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@commons.apache.org For additional commands, e-mail: dev-h...@commons.apache.org
