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cleanup; use short-paths

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Simon Cruanes 2015-11-13 16:23:49 +01:00
parent ccf605de12
commit 4d9b1d68ed
2 changed files with 5 additions and 5 deletions
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2
_tags
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@ -5,4 +5,4 @@
<src/core/CCVector.cmx>: inline(25)
<src/data/CCFlatHashtbl.cm*> or <src/data/CCHashTrie.cm*> or <src/data/CCPersistent*>: inline(15)
<src/**/*.ml> and not <src/misc/*.ml>: warn_A, warn(-4), warn(-44)
true: no_alias_deps, safe_string
true: no_alias_deps, safe_string, short_paths

8
src/core/CCRandom.ml
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@ -117,7 +117,7 @@ let _diff_list ~last l =
∑_k y_k = ∑_k (x_{k+1} - x_k ) = x_{len} - x_0 = i. *)
let split_list i ~len st =
if i >= len then
let xs = sample_without_replacement (len-1) (int_range 1 @@ i-1) st in
let xs = sample_without_replacement (len-1) (int_range 1 (i-1)) st in
_diff_list ( 0::xs ) ~last:i
else
None
@ -198,9 +198,9 @@ let uniformity_test ?(size_hint=10) k rng st =
Hashtbl.replace histogram x (n + 1) in
let () =
for _i = 0 to ( k - 1 ) do
add @@ rng st
add (rng st)
done in
let cardinal = float_of_int @@ Hashtbl.length histogram in
let cardinal = float_of_int (Hashtbl.length histogram) in
let kf = float_of_int k in
(* average number of points assuming an uniform distribution *)
let average = kf /. cardinal in
@ -211,7 +211,7 @@ let uniformity_test ?(size_hint=10) k rng st =
(* Central limit theorem: a confidence interval of 4σ provides a false positive rate
of 0.00634% *)
let confidence = 4. in
let std = confidence *. ( sqrt @@ kf *. variance ) in
let std = confidence *. (sqrt (kf *. variance)) in
let predicate _key n acc =
acc && abs_float (average -. float_of_int n) < std in
Hashtbl.fold predicate histogram true