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author | Tom Smeding <tom@tomsmeding.com> | 2024-06-09 23:09:19 +0200 |
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committer | Tom Smeding <tom@tomsmeding.com> | 2024-06-09 23:09:19 +0200 |
commit | 1f3d57e13441f86b97ee7ff213bb4a677e31f2db (patch) | |
tree | e72bfd568b032a9af611118038c2eeb6f347ea22 /src/Data/Array/Nested/Internal/Ranked.hs | |
parent | c8f99847359a92289cf0ded280069794f6abae6a (diff) |
argmin and argmax
Diffstat (limited to 'src/Data/Array/Nested/Internal/Ranked.hs')
-rw-r--r-- | src/Data/Array/Nested/Internal/Ranked.hs | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/src/Data/Array/Nested/Internal/Ranked.hs b/src/Data/Array/Nested/Internal/Ranked.hs index 55ae59f..c16cfb7 100644 --- a/src/Data/Array/Nested/Internal/Ranked.hs +++ b/src/Data/Array/Nested/Internal/Ranked.hs @@ -449,6 +449,18 @@ rreshape sh' rarr@(Ranked arr) riota :: (Enum a, PrimElt a, Elt a) => Int -> Ranked 1 a riota n = TN.withSomeSNat (fromIntegral n) $ mtoRanked . miota +-- | Throws if the array is empty. +rargMinPrim :: (PrimElt a, NumElt a) => Ranked n a -> IIxR n +rargMinPrim rarr@(Ranked arr) + | Refl <- lemRankReplicate (rrank (rtoPrimitive rarr)) + = ixCvtXR (margMinPrim arr) + +-- | Throws if the array is empty. +rargMaxPrim :: (PrimElt a, NumElt a) => Ranked n a -> IIxR n +rargMaxPrim rarr@(Ranked arr) + | Refl <- lemRankReplicate (rrank (rtoPrimitive rarr)) + = ixCvtXR (margMaxPrim arr) + rtoXArrayPrimP :: Ranked n (Primitive a) -> (IShR n, XArray (Replicate n Nothing) a) rtoXArrayPrimP (Ranked arr) = first shCvtXR' (mtoXArrayPrimP arr) |