Source code for matchms.filtering.select_by_intensity

import numpy
from ..Fragments import Fragments
from ..typing import SpectrumType


[docs]def select_by_intensity(spectrum_in: SpectrumType, intensity_from: float = 10.0, intensity_to: float = 200.0) -> SpectrumType: """Keep only peaks within set intensity range (keep if intensity_from >= intensity >= intensity_to). In most cases it is adviced to use :py:func:`select_by_relative_intensity` function instead. Parameters ---------- intensity_from: Set lower threshold for peak intensity. Default is 10.0. intensity_to: Set upper threshold for peak intensity. Default is 200.0. """ if spectrum_in is None: return None spectrum = spectrum_in.clone() assert intensity_from <= intensity_to, "'intensity_from' should be smaller than or equal to 'intensity_to'." condition = numpy.logical_and(intensity_from <= spectrum.peaks.intensities, spectrum.peaks.intensities <= intensity_to) spectrum.peaks = Fragments(mz=spectrum.peaks.mz[condition], intensities=spectrum.peaks.intensities[condition]) return spectrum