Changelog

Version 0.1.10.0

October 19, 2019

https://github.com/mstksg/emd/releases/tag/v0.1.10.0

• Sifting condition checking system has been revamped to be more flexible.
• New sift conditions added:
  • Projections based on functions:
    • Energy Difference function (for Energy Difference Tracking)
    • Mean envelope RMS
  • For the above, we can now stop sifting based on:
    • Those projections reaching a certain value
    • Successive values of those projections reaching a certain squared difference (Cauchy-inspired convergence)
  • S-Number Criterion
• Add test suites

Version 0.1.9.0

October 9, 2019

https://github.com/mstksg/emd/releases/tag/v0.1.9.0

• Breaking: hlMags field in HHT v n a now contains n + 1 items, instead of n items. Use V.init to regain the original behavior.
• Added hlInitPhase field to HHTLine, to denote the initial phase that an HHT Line starts at.
• Added hhtResidual field to HHT, to store the residual of the original EMD.
• Add ihht and ihhtEmd, to invert Hilbert-Huang Transform and reconstruct the original series (or the original EMD).
• Begin benchmarking hht and ihht.

Version 0.1.8.0

October 4, 2019

https://github.com/mstksg/emd/releases/tag/v0.1.8.0

• Add meanMarginal

• Fix degreeOfStationarity for divide-by-zero errors.

• Add foldFreq for generalized folding on HHT, and rewrote other functions in terms of it.

• Drop support for GHC 8.2 and lower.

• 0.1.8.1: Exported marginal again; it was unexported by mistake.

Version 0.1.7.0

September 24, 2019

https://github.com/mstksg/emd/releases/tag/v0.1.7.0

• Rewrite hilbert using the fft library, matching the matlab implementation. This means that the library now depends on fftw.

Version 0.1.6.0

September 24, 2019

https://github.com/mstksg/emd/releases/tag/v0.1.6.0

• Add hilbertPhase to Numeric.HHT.

Version 0.1.5.1

September 3, 2019

https://github.com/mstksg/emd/releases/tag/v0.1.5.1

• Remove dependency on pure-fft, using statistics instead.

Version 0.1.5.0

August 31, 2019

https://github.com/mstksg/emd/releases/tag/v0.1.5.0

• Add NFData instance for EMD, HHTLine, and HTT
• Add iemd, inverting emd.

Version 0.1.4.0

August 20, 2018

https://github.com/mstksg/emd/releases/tag/v0.1.4.0

• hhtSparseSpectrum added to Numeric.HHT module, for an alternate sparser representation of the Hilbert Spectrum.
• hhtDenseSpectrum also added to Numeric.HHT, for an alternative denser representation.
• expectedFrequency added to Numeric.HHT module, to calculate weighted average of frequency contributions at each step in time.
• dominantFrequency also added to Numeric.HHT to calculate strongest frequency at each step in time.

Version 0.1.3.0

August 15, 2018

https://github.com/mstksg/emd/releases/tag/v0.1.3.0

• Default instance for SiftCondition and EMDOpts, as a useful alternative to defaultEO and defaultSC for those who prefer it.
• Binary instances for EMD, HHT, and related data types. These are based on Binary instance for v a, so the user must bring the orphan instance of their choice into scope. Not sure if this is the best way to do this.

Version 0.1.2.1

July 27, 2018

https://github.com/mstksg/emd/releases/tag/v0.1.2.1

• BUG FIX Fixed behavior of frequency wrapping to wrap between 0 and 1, instead of 0.5, as claimed!

Version 0.1.2.0

July 27, 2018

https://github.com/mstksg/emd/releases/tag/v0.1.2.0

• Actually implemented the Hilbert-Huang transform
• Allowed for other border handling behaviors during EMD
• Changed default stopping conditions for sifting process
• Added clamped spline end conditions.
• Removed unsized interface
• Sifting will now throw runtime exception for singular splining matrices, instead of treating the result as a residual. This might change in the future.

Version 0.1.1.0

July 25, 2018

https://github.com/mstksg/emd/releases/tag/v0.1.1.0

• Unsized interface added.

Version 0.1.0.0

July 25, 2018

https://github.com/mstksg/emd/releases/tag/v0.1.0.0

• Initial release