Sparse arrays are only partially implemented in J. They cannot be be boxed and they don't play well with the 3!:x and 5!:x foreigns. I keep giving them a try but their partial status limits their utility. Finishing and optimizing sparse arrays in J would be a good community project.
On Sat, Jul 25, 2015 at 6:56 AM, Igor Zhuravlov <[email protected]> wrote: > $ LANG=C ./jconsole.sh > JVERSION > Engine: j803/2014-10-19-11:11:11 > Library: 8.03.13 > Platform: Linux 64 > Installer: J803 install > InstallPath: /home/jip/j64-803 > sh=: i. i. 0 > sa=: 1 $. sh > datatype sa > sparse floating > ,: sa > ./jconsole.sh: line 6: 9529 Floating point exceptionbin/jconsole > > Sparse boolean and integer arrays crash, too. There is no crash when > either the shape is non-empty or an array is dense. > > -- > WBR, > Igor > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm -- John D. Baker [email protected] ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
