Numeric.GSL.LinearAlgebra

Documentation

data RandDist

Constructors

Uniform

uniform distribution in [0,1)

Gaussian

normal distribution with mean zero and standard deviation one

Instances

Enum RandDist

Methods

succ :: RandDist -> RandDist

pred :: RandDist -> RandDist

toEnum :: Int -> RandDist

fromEnum :: RandDist -> Int

enumFrom :: RandDist -> [RandDist]

enumFromThen :: RandDist -> RandDist -> [RandDist]

enumFromTo :: RandDist -> RandDist -> [RandDist]

enumFromThenTo :: RandDist -> RandDist -> RandDist -> [RandDist]

randomVector

Arguments

:: Int

seed

-> RandDist

distribution

-> Int

vector size

-> Vector Double

Obtains a vector of pseudorandom elements from the the mt19937 generator in GSL, with a given seed. Use randomIO to get a random seed.

saveMatrix

Arguments

:: FilePath

-> String

format (%f, %g, %e)

-> Matrix Double

-> IO ()

Saves a matrix as 2D ASCII table.

fwriteVector :: FilePath -> Vector Double -> IO ()

Saves the elements of a vector to a binary file.

freadVector :: FilePath -> Int -> IO (Vector Double)

Loads a vector from a binary file (the number of elements must be known in advance).

fprintfVector :: FilePath -> String -> Vector Double -> IO ()

Saves the elements of a vector, with a given format (%f, %e, %g), to an ASCII file.

fscanfVector :: FilePath -> Int -> IO (Vector Double)

Loads a vector from an ASCII file (the number of elements must be known in advance).

fileDimensions :: FilePath -> IO (Int, Int)

obtains the number of rows and columns in an ASCII data file (provisionally using unix's wc).

loadMatrix :: FilePath -> IO (Matrix Double)

Loads a matrix from an ASCII file formatted as a 2D table.

fromFile :: FilePath -> (Int, Int) -> IO (Matrix Double)

Loads a matrix from an ASCII file (the number of rows and columns must be known in advance).