Sized matrixes.

Copyright: (c) 2009 University of Kansas License: BSD3

Maintainer: Andy Gill andygill@ku.edu Stability: unstable Portability: ghc

- data Matrix ix a = Matrix (Array ix a)
- (!) :: Size n => Matrix n a -> n -> a
- toList :: Size i => Matrix i a -> [a]
- fromList :: Size i => [a] -> Matrix i a
- matrix :: Size i => [a] -> Matrix i a
- indices :: Size i => Matrix i a -> [i]
- length :: Size i => Matrix i a -> Int
- assocs :: Size i => Matrix i a -> [(i, a)]
- (//) :: Size i => Matrix i e -> [(i, e)] -> Matrix i e
- accum :: Size i => (e -> a -> e) -> Matrix i e -> [(i, a)] -> Matrix i e
- zeroOf :: Size i => Matrix i a -> i
- coord :: Size i => Matrix i i
- zipWith :: Size i => (a -> b -> c) -> Matrix i a -> Matrix i b -> Matrix i c
- forEach :: Size i => Matrix i a -> (i -> a -> b) -> Matrix i b
- forAll :: Size i => (i -> a) -> Matrix i a
- mm :: (Size m, Size n, Size m', Size n', n ~ m', Num a) => Matrix (m, n) a -> Matrix (m', n') a -> Matrix (m, n') a
- transpose :: (Size x, Size y) => Matrix (x, y) a -> Matrix (y, x) a
- identity :: (Size x, Num a) => Matrix (x, x) a
- above :: (Size m, Size top, Size bottom, Size both, ADD top bottom ~ both, SUB both top ~ bottom, SUB both bottom ~ top) => Matrix (top, m) a -> Matrix (bottom, m) a -> Matrix (both, m) a
- beside :: (Size m, Size left, Size right, Size both, ADD left right ~ both, SUB both left ~ right, SUB both right ~ left) => Matrix (m, left) a -> Matrix (m, right) a -> Matrix (m, both) a
- ixmap :: (Size i, Size j) => (i -> j) -> Matrix j a -> Matrix i a
- ixfmap :: (Size i, Size j, Functor f) => (i -> f j) -> Matrix j a -> Matrix i (f a)
- cropAt :: (Index i ~ Index ix, Size i, Size ix) => Matrix ix a -> ix -> Matrix i a
- rows :: (Bounded n, Size n, Bounded m, Size m) => Matrix (m, n) a -> Matrix m (Matrix n a)
- columns :: (Bounded n, Size n, Bounded m, Size m) => Matrix (m, n) a -> Matrix n (Matrix m a)
- joinRows :: (Bounded n, Size n, Bounded m, Size m) => Matrix m (Matrix n a) -> Matrix (m, n) a
- joinColumns :: (Bounded n, Size n, Bounded m, Size m) => Matrix n (Matrix m a) -> Matrix (m, n) a
- unitRow :: (Size m, Bounded m) => Matrix m a -> Matrix (X1, m) a
- unRow :: (Size m, Bounded m) => Matrix (X1, m) a -> Matrix m a
- unitColumn :: (Size m, Bounded m) => Matrix m a -> Matrix (m, X1) a
- unColumn :: (Size m, Bounded m) => Matrix (m, X1) a -> Matrix m a
- squash :: (Size n, Size m) => Matrix m a -> Matrix n a
- showMatrix :: (Size n, Size m) => Matrix (m, n) String -> String
- newtype S = S String
- showAs :: RealFloat a => Int -> a -> S
- module Data.Sized.Ix

# Documentation

A `Matrix`

is an array with the sized determined uniquely by the
*type* of the index type, `ix`

.

fromList :: Size i => [a] -> Matrix i aSource

`fromList`

turns a finite list into a matrix. You often need to give the type of the result.

matrix :: Size i => [a] -> Matrix i aSource

`matrix`

turns a finite list into a matrix. You often need to give the type of the result.

zipWith :: Size i => (a -> b -> c) -> Matrix i a -> Matrix i b -> Matrix i cSource

Same as for lists.

forEach :: Size i => Matrix i a -> (i -> a -> b) -> Matrix i bSource

`forEach`

takes a matrix, and calls a function for each element, to give a new matrix of the same size.

forAll :: Size i => (i -> a) -> Matrix i aSource

`forAll`

creates a matrix out of a mapping from the coordinates.

mm :: (Size m, Size n, Size m', Size n', n ~ m', Num a) => Matrix (m, n) a -> Matrix (m', n') a -> Matrix (m, n') aSource

`mm`

is the 2D matrix multiply.

above :: (Size m, Size top, Size bottom, Size both, ADD top bottom ~ both, SUB both top ~ bottom, SUB both bottom ~ top) => Matrix (top, m) a -> Matrix (bottom, m) a -> Matrix (both, m) aSource

stack two matrixes `above`

each other.

beside :: (Size m, Size left, Size right, Size both, ADD left right ~ both, SUB both left ~ right, SUB both right ~ left) => Matrix (m, left) a -> Matrix (m, right) a -> Matrix (m, both) aSource

stack two matrixes `beside`

each other.

ixmap :: (Size i, Size j) => (i -> j) -> Matrix j a -> Matrix i aSource

look at a matrix through a lens to another matrix.

ixfmap :: (Size i, Size j, Functor f) => (i -> f j) -> Matrix j a -> Matrix i (f a)Source

look at a matrix through a functor lens, to another matrix.

cropAt :: (Index i ~ Index ix, Size i, Size ix) => Matrix ix a -> ix -> Matrix i aSource

grab *part* of a matrix.

rows :: (Bounded n, Size n, Bounded m, Size m) => Matrix (m, n) a -> Matrix m (Matrix n a)Source

slice a 2D matrix into rows.

columns :: (Bounded n, Size n, Bounded m, Size m) => Matrix (m, n) a -> Matrix n (Matrix m a)Source

slice a 2D matrix into columns.

joinRows :: (Bounded n, Size n, Bounded m, Size m) => Matrix m (Matrix n a) -> Matrix (m, n) aSource

join a matrix of matrixes into a single matrix.

joinColumns :: (Bounded n, Size n, Bounded m, Size m) => Matrix n (Matrix m a) -> Matrix (m, n) aSource

join a matrix of matrixes into a single matrix.

unitRow :: (Size m, Bounded m) => Matrix m a -> Matrix (X1, m) aSource

generate a 2D single row from a 1D matrix.

unRow :: (Size m, Bounded m) => Matrix (X1, m) a -> Matrix m aSource

generate a 1D matrix from a 2D matrix.

unitColumn :: (Size m, Bounded m) => Matrix m a -> Matrix (m, X1) aSource

generate a 2D single column from a 1D matrix.

unColumn :: (Size m, Bounded m) => Matrix (m, X1) a -> Matrix m aSource

generate a 1D matrix from a 2D matrix.

squash :: (Size n, Size m) => Matrix m a -> Matrix n aSource

very general; required that m and n have the same number of elements, rebundle please.

showMatrix :: (Size n, Size m) => Matrix (m, n) String -> StringSource

`showMatrix`

displays a 2D matrix, and is the worker for `show`

.

GHCi> matrix [1..42] :: Matrix (X7,X6) Int [ 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 ]

`S`

is shown as the contents, without the quotes.
One use is a matrix of S, so that you can do show-style functions
using fmap.

module Data.Sized.Ix