hmatrix-0.5.2.0: Linear algebra and numerical computationsSource codeContentsIndex
Data.Packed.Vector
Portabilityportable
Stabilityprovisional
MaintainerAlberto Ruiz <aruiz@um.es>
Description
A representation of 1D arrays suitable for numeric computations using external libraries.
Synopsis
data Vector t
fromList :: Storable a => [a] -> Vector a
(|>) :: Storable a => Int -> [a] -> Vector a
toList :: Storable a => Vector a -> [a]
dim :: Vector t -> Int
(@>) :: Storable t => Vector t -> Int -> t
subVector :: Storable t => Int -> Int -> Vector t -> Vector t
join :: Storable t => [Vector t] -> Vector t
constant :: Element a => a -> Int -> Vector a
linspace :: Int -> (Double, Double) -> Vector Double
vectorMax :: Vector Double -> Double
vectorMin :: Vector Double -> Double
vectorMaxIndex :: Vector Double -> Int
vectorMinIndex :: Vector Double -> Int
liftVector :: (Storable a, Storable b) => (a -> b) -> Vector a -> Vector b
liftVector2 :: (Storable a, Storable b, Storable c) => (a -> b -> c) -> Vector a -> Vector b -> Vector c
foldLoop :: (Int -> t -> t) -> t -> Int -> t
foldVector :: (Double -> b -> b) -> b -> Vector Double -> b
foldVectorG :: Storable a => (Int -> (Int -> a) -> t -> t) -> t -> Vector a -> t
mapVector :: (Storable a, Storable b) => (a -> b) -> Vector a -> Vector b
zipVector :: (Storable a, Storable b, Storable c) => (a -> b -> c) -> Vector a -> Vector b -> Vector c
Documentation
data Vector t Source
A one-dimensional array of objects stored in a contiguous memory block.
show/hide Instances
fromList :: Storable a => [a] -> Vector aSource

creates a Vector from a list: 

> fromList [2,3,5,7]
4 |> [2.0,3.0,5.0,7.0]
(|>) :: Storable a => Int -> [a] -> Vector aSource

An alternative to fromList with explicit dimension. The input list is explicitly truncated if it is too long, so it may safely be used, for instance, with infinite lists.

This is the format used in the instances for Show (Vector a).

toList :: Storable a => Vector a -> [a]Source

extracts the Vector elements to a list 

> toList (linspace 5 (1,10))
[1.0,3.25,5.5,7.75,10.0]
dim :: Vector t -> IntSource
number of elements
(@>) :: Storable t => Vector t -> Int -> tSource

Reads a vector position: 

> fromList [0..9] @> 7
7.0
subVectorSource
:: Storable t
=> Intnumber of elements to extract
-> Intsource
-> Vector tresult
-> Vector t

takes a number of consecutive elements from a Vector 

> subVector 2 3 (fromList [1..10])
3 |> [3.0,4.0,5.0]
join :: Storable t => [Vector t] -> Vector tSource

creates a new Vector by joining a list of Vectors 

> join [fromList [1..5], constant 1 3]
8 |> [1.0,2.0,3.0,4.0,5.0,1.0,1.0,1.0]
constant :: Element a => a -> Int -> Vector aSource

creates a vector with a given number of equal components: 

> constant 2 7
7 |> [2.0,2.0,2.0,2.0,2.0,2.0,2.0]
linspace :: Int -> (Double, Double) -> Vector DoubleSource

Creates a real vector containing a range of values: 

> linspace 5 (-3,7)
5 |> [-3.0,-0.5,2.0,4.5,7.0]
vectorMax :: Vector Double -> DoubleSource
vectorMin :: Vector Double -> DoubleSource
vectorMaxIndex :: Vector Double -> IntSource
vectorMinIndex :: Vector Double -> IntSource
liftVector :: (Storable a, Storable b) => (a -> b) -> Vector a -> Vector bSource
liftVector2 :: (Storable a, Storable b, Storable c) => (a -> b -> c) -> Vector a -> Vector b -> Vector cSource
foldLoop :: (Int -> t -> t) -> t -> Int -> tSource
foldVector :: (Double -> b -> b) -> b -> Vector Double -> bSource
foldVectorG :: Storable a => (Int -> (Int -> a) -> t -> t) -> t -> Vector a -> tSource
mapVector :: (Storable a, Storable b) => (a -> b) -> Vector a -> Vector bSource
map on Vectors
zipVector :: (Storable a, Storable b, Storable c) => (a -> b -> c) -> Vector a -> Vector b -> Vector cSource
zipWith for Vectors
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