Devon, Python pandas can load matlab mat files. I think (but don't know) that it would be fairly straightforward to use the Jd pandas support (for parquet and other formats) to work with mat files. Google (pandas and matlab mat files) and the Jd jdrt'pandas' tutorial might be a way forward.
The Jd support would be very general if you are looking at reading/writing many mat files. If this is a one time event there might be easier ways. On Tue, Nov 14, 2023 at 9:35 PM Devon McCormick <devon...@gmail.com> wrote: > Thanks! I seem to recall writing a reader in APL or J a long time ago and > it was easy but I have no idea where the code is. > > On Tue, Nov 14, 2023 at 4:23 PM Jan-Pieter Jacobs < > janpieter.jac...@gmail.com> wrote: > > > I was curious and googled around a bit, finding this pdf, maybe it could > > help in case you're wanting to implement a Mat file reader: > > https://www.mathworks.com/help/pdf_doc/matlab/matfile_format.pdf > > which describes mat file levels 5 and 4. It seems current as it's been > > re-released in 2023. It looks a lot less complicated than what I expected > > :), but I never really needed it. > > Jan-Pieter. > > > > On Tue, Nov 14, 2023 at 9:50 AM 'Mike Day' via General < > > gene...@jsoftware.com> wrote: > > > > > Don't know, but Google tells me you can do so in R, and there's an R > > > interface > > > in addons/stats/r. Might get you started, > > > > > > Mike > > > > > > Sent from my iPad > > > > > > > On 14 Nov 2023, at 04:10, Devon McCormick <devon...@gmail.com> > wrote: > > > > > > > > Has anyone written something to read Matlab ".mat" data files into > J? > > > > > > > > Thanks... > > > > > > > > -- > > > > > > > > Devon McCormick, CFA > > > > > > > > Quantitative Consultant > > > > > ---------------------------------------------------------------------- > > > > For information about J forums see > http://www.jsoftware.com/forums.htm > > > ---------------------------------------------------------------------- > > > For information about J forums see http://www.jsoftware.com/forums.htm > > > > > ---------------------------------------------------------------------- > > For information about J forums see http://www.jsoftware.com/forums.htm > > > > > -- > > Devon McCormick, CFA > > Quantitative Consultant > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
