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|
-----------------------------------------------------------------------------
-- |
-- Module : Numeric.GSL.Vector
-- Copyright : (c) Alberto Ruiz 2007
-- License : GPL
-- Maintainer : Alberto Ruiz
-- Stability : provisional
--
-- Low level interface to vector operations.
--
-----------------------------------------------------------------------------
module Numeric.GSL.Vector (
sumF, sumR, sumQ, sumC,
prodF, prodR, prodQ, prodC,
FunCodeS(..), toScalarR, toScalarF, toScalarC, toScalarQ,
FunCodeV(..), vectorMapR, vectorMapC, vectorMapF, vectorMapQ,
FunCodeSV(..), vectorMapValR, vectorMapValC, vectorMapValF, vectorMapValQ,
FunCodeVV(..), vectorZipR, vectorZipC, vectorZipF, vectorZipQ,
RandDist(..), randomVector,
saveMatrix,
fwriteVector, freadVector, fprintfVector, fscanfVector
) where
import Data.Packed
import Numeric.GSL.Internal hiding (TV,TM,TCV,TCM)
import Numeric.Vectorized(
sumF, sumR, sumQ, sumC,
prodF, prodR, prodQ, prodC,
FunCodeS(..), toScalarR, toScalarF, toScalarC, toScalarQ,
FunCodeV(..), vectorMapR, vectorMapF,
FunCodeSV(..), vectorMapValR, vectorMapValF,
FunCodeVV(..), vectorZipR, vectorZipF
)
import Data.Complex
import Foreign.Marshal.Alloc(free)
import Foreign.Marshal.Array(newArray)
import Foreign.Ptr(Ptr)
import Foreign.C.Types
import Foreign.C.String(newCString)
import System.IO.Unsafe(unsafePerformIO)
import Control.Monad(when)
fromei x = fromIntegral (fromEnum x) :: CInt
------------------------------------------------------------------
vectorMapAux fun code v = unsafePerformIO $ do
r <- createVector (dim v)
app2 (fun (fromei code)) vec v vec r "vectorMapAux"
return r
vectorMapValAux fun code val v = unsafePerformIO $ do
r <- createVector (dim v)
pval <- newArray [val]
app2 (fun (fromei code) pval) vec v vec r "vectorMapValAux"
free pval
return r
vectorZipAux fun code u v = unsafePerformIO $ do
r <- createVector (dim u)
when (dim u > 0) $ app3 (fun (fromei code)) vec u vec v vec r "vectorZipAux"
return r
---------------------------------------------------------------------
-- | map of complex vectors with given function
vectorMapC :: FunCodeV -> Vector (Complex Double) -> Vector (Complex Double)
vectorMapC oper = vectorMapAux c_vectorMapC (fromei oper)
foreign import ccall unsafe "gsl-aux.h mapC" c_vectorMapC :: CInt -> TCVCV
-- | map of real vectors with given function
vectorMapQ :: FunCodeV -> Vector (Complex Float) -> Vector (Complex Float)
vectorMapQ = vectorMapAux c_vectorMapQ
foreign import ccall unsafe "gsl-aux.h mapQ" c_vectorMapQ :: CInt -> TQVQV
-------------------------------------------------------------------
-- | map of complex vectors with given function
vectorMapValC :: FunCodeSV -> Complex Double -> Vector (Complex Double) -> Vector (Complex Double)
vectorMapValC = vectorMapValAux c_vectorMapValC
foreign import ccall unsafe "gsl-aux.h mapValC" c_vectorMapValC :: CInt -> Ptr (Complex Double) -> TCVCV
-- | map of complex vectors with given function
vectorMapValQ :: FunCodeSV -> Complex Float -> Vector (Complex Float) -> Vector (Complex Float)
vectorMapValQ oper = vectorMapValAux c_vectorMapValQ (fromei oper)
foreign import ccall unsafe "gsl-aux.h mapValQ" c_vectorMapValQ :: CInt -> Ptr (Complex Float) -> TQVQV
-------------------------------------------------------------------
-- | elementwise operation on complex vectors
vectorZipC :: FunCodeVV -> Vector (Complex Double) -> Vector (Complex Double) -> Vector (Complex Double)
vectorZipC = vectorZipAux c_vectorZipC
foreign import ccall unsafe "gsl-aux.h zipC" c_vectorZipC :: CInt -> TCVCVCV
-- | elementwise operation on complex vectors
vectorZipQ :: FunCodeVV -> Vector (Complex Float) -> Vector (Complex Float) -> Vector (Complex Float)
vectorZipQ = vectorZipAux c_vectorZipQ
foreign import ccall unsafe "gsl-aux.h zipQ" c_vectorZipQ :: CInt -> TQVQVQV
-----------------------------------------------------------------------
data RandDist = Uniform -- ^ uniform distribution in [0,1)
| Gaussian -- ^ normal distribution with mean zero and standard deviation one
deriving Enum
-- | Obtains a vector of pseudorandom elements from the the mt19937 generator in GSL, with a given seed. Use randomIO to get a random seed.
randomVector :: Int -- ^ seed
-> RandDist -- ^ distribution
-> Int -- ^ vector size
-> Vector Double
randomVector seed dist n = unsafePerformIO $ do
r <- createVector n
app1 (c_random_vector (fi seed) ((fi.fromEnum) dist)) vec r "randomVector"
return r
foreign import ccall unsafe "random_vector" c_random_vector :: CInt -> CInt -> TV
--------------------------------------------------------------------------------
-- | Saves a matrix as 2D ASCII table.
saveMatrix :: FilePath
-> String -- ^ format (%f, %g, %e)
-> Matrix Double
-> IO ()
saveMatrix filename fmt m = do
charname <- newCString filename
charfmt <- newCString fmt
let o = if orderOf m == RowMajor then 1 else 0
app1 (matrix_fprintf charname charfmt o) mat m "matrix_fprintf"
free charname
free charfmt
foreign import ccall unsafe "matrix_fprintf" matrix_fprintf :: Ptr CChar -> Ptr CChar -> CInt -> TM
--------------------------------------------------------------------------------
-- | Loads a vector from an ASCII file (the number of elements must be known in advance).
fscanfVector :: FilePath -> Int -> IO (Vector Double)
fscanfVector filename n = do
charname <- newCString filename
res <- createVector n
app1 (gsl_vector_fscanf charname) vec res "gsl_vector_fscanf"
free charname
return res
foreign import ccall unsafe "vector_fscanf" gsl_vector_fscanf:: Ptr CChar -> TV
-- | Saves the elements of a vector, with a given format (%f, %e, %g), to an ASCII file.
fprintfVector :: FilePath -> String -> Vector Double -> IO ()
fprintfVector filename fmt v = do
charname <- newCString filename
charfmt <- newCString fmt
app1 (gsl_vector_fprintf charname charfmt) vec v "gsl_vector_fprintf"
free charname
free charfmt
foreign import ccall unsafe "vector_fprintf" gsl_vector_fprintf :: Ptr CChar -> Ptr CChar -> TV
-- | Loads a vector from a binary file (the number of elements must be known in advance).
freadVector :: FilePath -> Int -> IO (Vector Double)
freadVector filename n = do
charname <- newCString filename
res <- createVector n
app1 (gsl_vector_fread charname) vec res "gsl_vector_fread"
free charname
return res
foreign import ccall unsafe "vector_fread" gsl_vector_fread:: Ptr CChar -> TV
-- | Saves the elements of a vector to a binary file.
fwriteVector :: FilePath -> Vector Double -> IO ()
fwriteVector filename v = do
charname <- newCString filename
app1 (gsl_vector_fwrite charname) vec v "gsl_vector_fwrite"
free charname
foreign import ccall unsafe "vector_fwrite" gsl_vector_fwrite :: Ptr CChar -> TV
type PF = Ptr Float --
type PD = Ptr Double --
type PQ = Ptr (Complex Float) --
type PC = Ptr (Complex Double) --
type TF = CInt -> PF -> IO CInt --
type TFF = CInt -> PF -> TF --
type TFV = CInt -> PF -> TV --
type TVF = CInt -> PD -> TF --
type TFFF = CInt -> PF -> TFF --
type TV = CInt -> PD -> IO CInt --
type TVV = CInt -> PD -> TV --
type TVVV = CInt -> PD -> TVV --
type TFM = CInt -> CInt -> PF -> IO CInt --
type TFMFM = CInt -> CInt -> PF -> TFM --
type TFMFMFM = CInt -> CInt -> PF -> TFMFM --
type TM = CInt -> CInt -> PD -> IO CInt --
type TMM = CInt -> CInt -> PD -> TM --
type TVMM = CInt -> PD -> TMM --
type TMVMM = CInt -> CInt -> PD -> TVMM --
type TMMM = CInt -> CInt -> PD -> TMM --
type TVM = CInt -> PD -> TM --
type TVVM = CInt -> PD -> TVM --
type TMV = CInt -> CInt -> PD -> TV --
type TMMV = CInt -> CInt -> PD -> TMV --
type TMVM = CInt -> CInt -> PD -> TVM --
type TMMVM = CInt -> CInt -> PD -> TMVM --
type TCM = CInt -> CInt -> PC -> IO CInt --
type TCVCM = CInt -> PC -> TCM --
type TCMCVCM = CInt -> CInt -> PC -> TCVCM --
type TMCMCVCM = CInt -> CInt -> PD -> TCMCVCM --
type TCMCMCVCM = CInt -> CInt -> PC -> TCMCVCM --
type TCMCM = CInt -> CInt -> PC -> TCM --
type TVCM = CInt -> PD -> TCM --
type TCMVCM = CInt -> CInt -> PC -> TVCM --
type TCMCMVCM = CInt -> CInt -> PC -> TCMVCM --
type TCMCMCM = CInt -> CInt -> PC -> TCMCM --
type TCV = CInt -> PC -> IO CInt --
type TCVCV = CInt -> PC -> TCV --
type TCVCVCV = CInt -> PC -> TCVCV --
type TCVV = CInt -> PC -> TV --
type TQV = CInt -> PQ -> IO CInt --
type TQVQV = CInt -> PQ -> TQV --
type TQVQVQV = CInt -> PQ -> TQVQV --
type TQVF = CInt -> PQ -> TF --
type TQM = CInt -> CInt -> PQ -> IO CInt --
type TQMQM = CInt -> CInt -> PQ -> TQM --
type TQMQMQM = CInt -> CInt -> PQ -> TQMQM --
type TCMCV = CInt -> CInt -> PC -> TCV --
type TVCV = CInt -> PD -> TCV --
type TCVM = CInt -> PC -> TM --
type TMCVM = CInt -> CInt -> PD -> TCVM --
type TMMCVM = CInt -> CInt -> PD -> TMCVM --
|
