More formats and actions

Major Features and Improvements

• load method now supports new signal formats:
  • DICOM
  • EDF
  • wav
• meta component structure has changed - now it always contains a number of predefined keys.
• Added channels processing methods:
  • EcgBatch.keep_channels
  • EcgBatch.drop_channels
  • EcgBatch.rename_channels
• Added apply_to_each_channel method.
• Added standardize method.
• Added complex ECG transformations:
  • Fourier-based transformations:
    • EcgBatch.fft
    • EcgBatch.ifft
    • EcgBatch.rfft
    • EcgBatch.irfft
    • EcgBatch.spectrogram
  • Wavelet-based transformations:
    • EcgBatch.dwt
    • EcgBatch.idwt
    • EcgBatch.wavedec
    • EcgBatch.waverec
    • EcgBatch.pdwt
    • EcgBatch.cwt

Breaking Changes to the API

• Changed signature of the following methods:
  • EcgBatch.apply_transform
  • EcgBatch.show_ecg
  • EcgBatch.calc_ecg_parameters
• Changed signature of the following pipelines:
  • dirichlet_train_pipeline
  • dirichlet_predict_pipeline
  • hmm_preprocessing_pipeline
  • hmm_train_pipeline
  • hmm_predict_pipeline
• wavelet_transform method has been deleted.
• update method has been deleted.
• replace_labels method has been renamed to rename_labels.
• slice_signal method has been renamed to slice_signals.
• ravel method has been renamed to unstack_signals.