Iteration over BigArray.Genarray

NAlec · February 7, 2024, 8:46pm

Hello,

Is there a facility to iterate over BigArray.Genarray of any dimension (I don’t see any in the doc) or shall I build it myself ?

bluddy · February 7, 2024, 8:59pm

Owl basically completes BigArray, especially Owl_base.

NAlec · February 7, 2024, 9:43pm

Thank you bluddy. Not to blame you but I have seen better documented libraries…not sure what’s the fastest/simplest track now.

bluddy · February 8, 2024, 7:30am

I agree it’s quite confusing unfortunately. Have a look at this file from owl_base:

github.com

owlbarn/owl/blob/main/src/base/dense/owl_base_dense_ndarray_generic.mli

(*
 * OWL - OCaml Scientific Computing
 * Copyright (c) 2016-2022 Liang Wang <liang@ocaml.xyz>
 *)

(**
N-dimensional array module: including creation, manipulation, and various
vectorised mathematical operations.
*)

(**
About the comparison of two complex numbers [x] and [y], Owl uses the
following conventions: 1) [x] and [y] are equal iff both real and imaginary
parts are equal; 2) [x] is less than [y] if the magnitude of [x] is less than
the magnitude of [x]; in case both [x] and [y] have the same magnitudes, [x]
is less than [x] if the phase of [x] is less than the phase of [y]; 3) less or
equal, greater, greater or equal relation can be further defined atop of the
aforementioned conventions.
*)

This file has been truncated. show original

art-w · February 8, 2024, 8:59am

It looks like you could just use batteries extension of the standard module

Otherwise Owl has a bunch of modules which aliases BigArray.GenArray with a c_layout, so one of those iteration functions should work.

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Iteration over BigArray.Genarray

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