LowRank.PositionedDecomposer

LowRank.PositionedDecomposer#

LowRank.PositionedDecomposer.py

This module contains the functions to decompose a curve according to specified peak positions.

decompose_icurve_positioned(x, y, decompargs, **kwargs)#

Decompose the given curve (x, y) into a sum of exponentially modified Gaussian (EMG) functions, with peak positions specified in decompargs[‘peakpositions’].

Parameters:

  • x (np.ndarray) – The x values of the curve.

  • y (np.ndarray) – The y values of the curve.

  • decompargs (dict) – A dictionary containing decomposition arguments. Must include ‘peakpositions’, a list of peak positions.

  • debug (bool, optional) – If True, enables debug mode with additional output.

Returns:

params – A 2D array of shape (number of peaks, 4), where each row contains the parameters (height, mean, sigma, tau) of the corresponding EMG function.

Return type:

np.ndarray