TimeSeries.Window

Window for time series analysis.

Later these shall relate to memory and FPGA internal registers in hardware...

Documentation

newtype Window

Newtype for windowd data.

Shall relate to memory contents in hardware.

Constructors

Window (UArray Word64 Double)

Instances

Eq Window

Show Window

type Size = Word64

Considering to restrict window size to power of 2, at least for initial phase.

data RandomVector

Random vector.

Constructors

RandomVector

Fields

unitRV :: Window

Unit random vector.

controlRV :: Window

Control random vector, mentioned as b in the paper.

Instances

Eq RandomVector

Show RandomVector

fromList :: [Double] -> Window

Create window from assoc list.

toList :: Window -> [Double]

empty :: Size -> Window

Window of given size, filled with zeros.

push :: Double -> Window -> Window

Put given Double as first element, shifts all the other element except for the last one, which being removed.

singleton :: Double -> Window

Size 1 window containing given value.

norm :: Window -> Window -> Double

Norm, by viewing window as vector.

>>> let x = fromList [0,3,4]
>>> let y = fromList [0,0,0]
>>> distance x y
5.0

append :: Window -> Window -> Window

Append two windows, with shifting the contents of second window. Last n elements of second window is removed, where n is number of elements in first window.

sumWindow :: Window -> Double

Sums up window elements.

sumSqWindow :: Window -> Double

Sums up square of window elements.

dotp :: Window -> Window -> Double

Dot product of given two windows.

dotps :: [Window] -> Window -> Window

Dot produt of list of window.

copyContents

Arguments

:: Window

Destination window.

-> Window

Source window.

-> Window

Copy contents of window to another.

randomVector

Arguments

:: Integer

Random seed.

-> Size

bw, size of basic window.

-> Size

nb, size of control vector.

-> RandomVector

Create window for random vectors.

wholeRandomVector

Arguments

:: RandomVector

Random vector used to convolve the contents.

-> Window

Random vector with size bw * nb.

Create whole random vector from RandomVector.

Unit random vector and control vector in given RandomVector is convolved.

pretty :: Window -> String

Show contents of window with printf.

average :: Window -> Double

Average of window contents.

variance :: Window -> Double

Variance of window contents.

length :: Window -> Int

Length of window.