fastmath.transform
Transforms.
See transformer and TransformProto for details.
Wavelet
Based on JWave library.
Be aware that some of the wavelet types doesn't work properly. :battle-23, :cdf-53, :cdf-97.
Cos/Sin/Hadamard
Orthogonal or standard fast sine/cosine/hadamard 1d transforms.
Fourier
DFT.
Transforms. See [[transformer]] and [[TransformProto]] for details. ### Wavelet Based on [JWave](https://github.com/cscheiblich/JWave/) library. Be aware that some of the wavelet types doesn't work properly. `:battle-23`, `:cdf-53`, `:cdf-97`. ### Cos/Sin/Hadamard Orthogonal or standard fast sine/cosine/hadamard 1d transforms. ### Fourier DFT.
compressclj
(compress mag xs)Compress transformed signal xs with given magnitude mag.
Compress transformed signal `xs` with given magnitude `mag`.
denoiseclj
(denoise xs)(denoise xs soft?)(denoise trans xs soft?)Adaptive denoising of time series (1d).
Use on transformed sequences or call with transformer object.
SMILE implementation of WaveletShrinkage denoise function.
Adaptive denoising of time series (1d). Use on transformed sequences or call with transformer object. SMILE implementation of WaveletShrinkage denoise function.
transformercljmultimethod
Create transform object for given wavelet.
Wavelets
:fastfor 1d or 2d Fast Wavelet Transform. Size of data should be power of2.:packetfor 1d or 2d Wavelet Packet Transform. Size of data should be power of2.:decomposed-fastfor 1d Fast Wavelet Transform. Data can have any size (Ancient Egyptian Decomposition is used).:decomposed-packetfor 1d Wavelet Packet Transform. Data can have any size (Ancient Egyptian Decomposition is used).
Second argument is wavelet name as key. See wavelets-list for all supported names.
Sine/Cosine/Hadamard
:standardfor 1d:sine,:cosine,:hadamard.:orthogonalfor 1d:sine,:cosine.
Note that :sine and :cosine require first element to be equal 0. Size of data should be power of 2.
Fourier
:standard:dft- 1d Discrete Fourier Transform - returns double-array where even elements are real part, odd elements are imaginary part.
Create transform object for given wavelet. #### Wavelets * `:fast` for 1d or 2d Fast Wavelet Transform. Size of data should be power of `2`. * `:packet` for 1d or 2d Wavelet Packet Transform. Size of data should be power of `2`. * `:decomposed-fast` for 1d Fast Wavelet Transform. Data can have any size (Ancient Egyptian Decomposition is used). * `:decomposed-packet` for 1d Wavelet Packet Transform. Data can have any size (Ancient Egyptian Decomposition is used). Second argument is wavelet name as key. See [[wavelets-list]] for all supported names. #### Sine/Cosine/Hadamard * `:standard` for 1d `:sine`, `:cosine`, `:hadamard`. * `:orthogonal` for 1d `:sine`, `:cosine`. Note that `:sine` and `:cosine` require first element to be equal `0`. Size of data should be power of 2. #### Fourier * `:standard` `:dft` - 1d Discrete Fourier Transform - returns double-array where even elements are real part, odd elements are imaginary part.
TransformProtocljprotocol
Transformer functions.
Transformer functions.
forward-1dclj
(forward-1d t xs)Forward transform of sequence or array. Returns double array.
Forward transform of sequence or array. Returns double array.
forward-2dclj
(forward-2d t xss)Forward transform of sequence of sequences or 2d double array. Returns 2d double array.
Forward transform of sequence of sequences or 2d double array. Returns 2d double array.
reverse-1dclj
(reverse-1d t xs)Reverse transform of sequence or array. Returns double array.
Reverse transform of sequence or array. Returns double array.
reverse-2dclj
(reverse-2d t xss)Reverse transform of sequence of sequences or 2d double array. Returns 2d double array.
Reverse transform of sequence of sequences or 2d double array. Returns 2d double array.
waveletcljmultimethod
Create wavelet object.
Shouldn't be used directly
Create wavelet object. Shouldn't be used directly
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