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  1. mapMatrixWithIndexM :: (Element a, Storable b, Monad m) => ((Int, Int) -> a -> m b) -> Matrix a -> m (Matrix b)

    hmatrix Numeric.LinearAlgebra.Devel

    >>> mapMatrixWithIndexM (\(i,j) v -> Just $ 100*v + 10*fromIntegral i + fromIntegral j) (ident 3:: Matrix Double)
    Just (3><3)
    [ 100.0,   1.0,   2.0
    ,  10.0, 111.0,  12.0
    ,  20.0,  21.0, 122.0 ]
    

  2. mapMatrixWithIndexM_ :: (Element a, Num a, Monad m) => ((Int, Int) -> a -> m ()) -> Matrix a -> m ()

    hmatrix Numeric.LinearAlgebra.Devel

    >>> mapMatrixWithIndexM_ (\(i,j) v -> printf "m[%d,%d] = %.f\n" i j v :: IO()) ((2><3)[1 :: Double ..])
    m[0,0] = 1
    m[0,1] = 2
    m[0,2] = 3
    m[1,0] = 4
    m[1,1] = 5
    m[1,2] = 6
    

  3. mapVectorM :: (Storable a, Storable b, Monad m) => (a -> m b) -> Vector a -> m (Vector b)

    hmatrix Numeric.LinearAlgebra.Devel

    monadic map over Vectors the monad m must be strict

  4. mapVectorM_ :: (Storable a, Monad m) => (a -> m ()) -> Vector a -> m ()

    hmatrix Numeric.LinearAlgebra.Devel

    monadic map over Vectors

  5. mapVectorWithIndex :: (Storable a, Storable b) => (Int -> a -> b) -> Vector a -> Vector b

    hmatrix Numeric.LinearAlgebra.Devel

    No documentation available.

  6. mapVectorWithIndexM :: (Storable a, Storable b, Monad m) => (Int -> a -> m b) -> Vector a -> m (Vector b)

    hmatrix Numeric.LinearAlgebra.Devel

    monadic map over Vectors with the zero-indexed index passed to the mapping function the monad m must be strict

  7. mapVectorWithIndexM_ :: (Storable a, Monad m) => (Int -> a -> m ()) -> Vector a -> m ()

    hmatrix Numeric.LinearAlgebra.Devel

    monadic map over Vectors with the zero-indexed index passed to the mapping function

  8. mapM :: (a -> IO b) -> InputStream a -> IO (InputStream b)

    io-streams System.IO.Streams.Combinators

    Maps an impure function over an InputStream. mapM f s passes all output from s through the IO action f. Satisfies the following laws:

    Streams.mapM (f >=> g) === Streams.mapM f >=> Streams.mapM g
    Streams.mapM return === Streams.makeInputStream . Streams.read
    

  9. mapM_ :: (a -> IO b) -> InputStream a -> IO (InputStream a)

    io-streams System.IO.Streams.Combinators

    Maps a side effect over an InputStream. mapM_ f s produces a new input stream that passes all output from s through the side-effecting IO action f. Example:

    ghci> Streams.fromList [1,2,3] >>=
    Streams.mapM_ (putStrLn . show . (*2)) >>=
    Streams.toList
    2
    4
    6
    [1,2,3]
    

  10. mapMaybe :: (a -> Maybe b) -> InputStream a -> IO (InputStream b)

    io-streams System.IO.Streams.Combinators

    A version of map that discards elements mapMaybe f s passes all output from s through the function f and discards elements for which f s evaluates to Nothing. Example:

    ghci> Streams.fromList [Just 1, None, Just 3] >>=
    Streams.mapMaybe id >>=
    Streams.toList
    [1,3]
    
    Since: 1.2.1.0

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