I recently learned one can do:
What is this type of construct used forCL-USER> (make-array '() :initial-contents '(0 1 2))
#0A(0 1 2)
CL-USER> (aref *)
(0 1 2)
CL-USER> (array-rank **)
0 (0 bits, #x0, #o0, #b0)
CL-USER> (array-dimensions *** )
NIL
What is this type of array used for?
Hello,
I am working on including Lisp-Stat's plotting into my workflow. I cloned the repo's last night - I am not using the quicklisp distribution.
While I can get working examples with vega:defplot, I cannot get examples using qplot to work.
I understand that since quick-plot was merged into lisp-stat, the interface has changed.
Maybe I am too old, but I just cannot get the hang of the new interface. With `qplot` I get a warning
WARNING: QPLOT is deprecated as a constructor entry point; prefer VEGA:MAKE-PLOT / MAKE-PLOT with the high-level data-plus-fragments path for new code.
and with vega:make-plot I get
; Debugger entered on #<SIMPLE-ERROR "Legacy positional MAKE-PLOT forms have been removed; use MAKE-PLOT :BASE for lower-level construction, or pass data first for the high-level authoring path." {70075D5223}>
Can someone kindly find share link with a working example or post one or two examples to get me going?
My and my ChatGPT will be greatful :-)
Hello,
I am doing some numerical computations (in APRIL no less). I use floating-point for numerical equality testing and I am using 5AM for unit tests.
I want to test equality of vectors of floating point numbers. I can write the code myself, but I'd rather reuse an existing library or contribute to an existing library.
I will appreciate pointers and advice before I start writing my own routines.
Thank you,
Hello,
I was installing the dual-numbers package from github - they are not in quicklisp
https://github.com/jrm-code-project/dual-numbers
The reason I ask is that I installed a library from GitHub like so
ros install jrm-code-project/dual-numbers
I expected it to be installed in ~/.roswell/local-projects, but instead it was installed in ~/.roswell/local-projects/jrm-code-project
So ASDF & quicklisp could not find it. I had to create a symlink from local-projects/jrm-code-project/dual-numbers to local-projecs/dual-numbers.
So, my problem is solved, but I am surprised by this behavior. Is that expected?
The documentation I looked (https://fukamachi.hashnode.dev/day-2-roswell-install-libraries-and-applications) says that stuff from GitHub should go into local-projects.
Can you offer an explanation on why it was installed in the jrm-code-project?
I am looking for a recent post (2-3 months back) that very nicely broke down a CL installation into a hierarchy of specifications. It went something like
I asked CoPilot to help me find it, and it was not able to. It generated its guess on the hierarchy which seemed reasonable. I will not post it because I don't want to pollute Reddit.
I will be very grateful if someone points me to the post (& the author).
Thank you very much,
Mirko