Thank you all so much for the detailed responses, really appreciate it. To give some background, my application is to build a CCA (canonical correlation analysis) filter as an OOT C++ block. And the inputs are two digital signals (represented as matrices) - one of them I receive and decode real time with my SDR (using usrp n210 with ubuntu).
I am going to try Eigen and Armadillo to start with. Cheers Laura. On Thu, Jan 16, 2020 at 2:33 PM Müller, Marcus (CEL) <muel...@kit.edu> wrote: > True, Eigen is pretty popular for people needing to do Matrix > operations – I wasn't aware they even have Matrix decompositions[1]! > (in hindsight... considering the library name...) > I like Eigen, but there's two caveats, I find: > > 1. indexing is done with () instead of [] (I guess it's made for people > who come from Matlab) > 2. It's very much mathematician's software – I found (but that's about > a decade in the past, at the very least, so older compilers, older > processors, older Eigen) that things like Matrix·Matrix products were > relatively slow > > I do recommend it to students that simply need some Matrix > functionality, as performance usually is of secondary concern and can > be optimized as soon as the software works. > > Best regards, > Marcus > > [1] > http://eigen.tuxfamily.org/dox/group__TopicLinearAlgebraDecompositions.html > On Fri, 2020-01-17 at 11:16 +1300, Jeremy Reeve wrote: > > Hi Laura, > > > > Just to add to the suggestions, I've seen Eigen [1] used in the past. > > It's a template library (headers only) and has no external > > dependencies other than the standard library and that might be > > something to consider given your use-case. > > > > [1] http://eigen.tuxfamily.org/index.php?title=Main_Page > > > > Jeremy > > > > On Fri, 17 Jan 2020 at 10:02, Laura Arjona <arjo...@uw.edu> wrote: > > > Hi all, > > > > > > Is there any library to use in gnuradio for algebra operations, such > as matrix eigenvalues, and pseudoinverse? Or I'd need to code them myself > in C++? > > > > > > I need to integrate those operations into my OOT C++ blocks. > > > > > > Thanks for your time > > > > > > Best > > > > > > -- > > > Laura Arjona > > > Washington Research Foundation Innovation Postdoctoral Fellow in > Neuroengineering > > > > > > Paul G. Allen School of Computer Science & Engineering > > > 185 E Stevens Way NE > > > University of Washington > > > Seattle, WA 98195-2350 > -- *Laura Arjona * Washington Research Foundation Innovation Postdoctoral Fellow in Neuroengineering *Paul G. Allen School of Computer Science & Engineering* 185 E Stevens Way NE University of Washington Seattle, WA 98195-2350
