package owl

  1. Overview
  2. Docs
package owl
Legend:
Page
Library
Module
Module type
Parameter
Class
Class type
Source

Source file owl_ppl.ml

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
# 1 "src/owl/ppl/owl_ppl.ml"
(*
 * OWL - OCaml Scientific and Engineering Computing
 * Copyright (c) 2016-2020 Liang Wang <liang.wang@cl.cam.ac.uk>
 *)

(** Experimental: Probabilistic Programming *)

open Owl_types

module Make (A : Stats_Dist) = struct
  include Owl_distribution.Make (A)
  module Lazy = Owl_lazy.Make (A)

  (* graph manipulation *)

  (* Draw random variables from different distributions. *)
  (*
  let uniform ~a ~b =
    let draw_samples args =
      let a = Lazy.value_to_arr args.(0) in
      let b = Lazy.value_to_arr args.(1) in
      (*let s = A.shape (to_arr args.(2)) in*)
      let n = 0 in
      let t = Uniform.make ~a ~b in
      Lazy.arr_to_value (Uniform.sample t n)
    in
    let shape_holder = Lazy.var_arr ~name:"" in (* FIXME *)
    map ~name:"uniform" draw_samples [|a;b;shape_holder|]

  let gaussian ~mu ~sigma =
    let draw_samples args =
      let mu = Lazy.value_to_arr args.(0) in
      let sigma = Lazy.value_to_arr args.(1) in
      (*let s = A.shape (to_arr args.(2)) in*)
      let n = 0 in
      let t = Gaussian.make ~mu ~sigma in
      Lazy.arr_to_value (Gaussian.sample t n)
    in
    let shape_holder = variable () in (* FIXME *)
    map ~name:"gaussian" draw_samples [|mu;sigma;shape_holder|]


  let sample x s =
    invalidate x;
    Array.iter (fun n ->
      assign_arr n (A.empty s)
    ) (get_by_name x "variable");
    eval x;
    x

  let infer x = ()
*)

  (* Mathematical operators *)
end
OCaml

Innovation. Community. Security.

GitHub Discord Twitter Peertube RSS
About
Changelog Releases Industrial Users Academic Users Why OCaml
Ecosystem
Packages Community Events OCaml Planet Jobs
Resources
Install OCaml Get Started Platform Tools Language Manual Standard Library API Books Exercises Papers OCaml Playground Logo
Policies
Carbon Footprint Governance Privacy Code of Conduct