Portability | portable |
---|---|

Stability | experimental |

Maintainer | bos@serpentine.com |

Safe Haskell | None |

Useful functions.

- minMax :: Vector v Double => v Double -> (Double, Double)
- sort :: (Ord e, Vector v e) => v e -> v e
- sortBy :: Vector v e => Comparison e -> v e -> v e
- partialSort :: (Vector v e, Ord e) => Int -> v e -> v e
- indexed :: (Vector v e, Vector v Int, Vector v (Int, e)) => v e -> v (Int, e)
- indices :: (Vector v a, Vector v Int) => v a -> v Int
- nextHighestPowerOfTwo :: Int -> Int
- within :: Int -> Double -> Double -> Bool

# Scanning

minMax :: Vector v Double => v Double -> (Double, Double)Source

Compute the minimum and maximum of a vector in one pass.

# Sorting

sortBy :: Vector v e => Comparison e -> v e -> v eSource

Sort a vector using a custom ordering.

Partially sort a vector, such that the least *k* elements will be
at the front.

# Indexing

indexed :: (Vector v e, Vector v Int, Vector v (Int, e)) => v e -> v (Int, e)Source

Zip a vector with its indices.

# Bit twiddling

nextHighestPowerOfTwo :: Int -> IntSource

Efficiently compute the next highest power of two for a non-negative integer. If the given value is already a power of two, it is returned unchanged. If negative, zero is returned.

# Comparison

Compare two `Double`

values for approximate equality, using
Dawson's method.

The required accuracy is specified in ULPs (units of least
precision). If the two numbers differ by the given number of ULPs
or less, this function returns `True`

.