Spectrum StatisticsΒΆ

11 statistic/analysis functions are calculated using the input spectrum or specified region of interest, depending on what is selected in the left side bar. If a region of interest is selected, the statistic calculations are updated when that region of interest is changed.

Calculations are done using the following functions:

Mean
astropy.units.Quantity.mean
Median:
numpy.median
Std Dev:
astropy.units.Quantity.std
Centroid:
specutils.analysis.centroid()
RMS:
numpy.sqrt(flux.dot(flux) / len(flux))
SNR:
specutils.analysis.snr()
FWHM:
specutils.analysis.fwhm()
Eq Width:
specutils.analysis.equivalent_width()
Max:
astropy.units.quantity.Quantity.max
Min:
astropy.units.quantity.Quantity.min
Count Total:
specutils.analysis.line_flux()