swectral.vegeind.cci#

swectral.vegeind.cci(spec_array, wavelength, axis=0)[source]#

Compute CCI (Chlorophyll/Carotenoid Index) of 2D array-like of 1D spectra data series. The calculation is based on:

J.A. Gamon, K.F. Huemmrich, C.Y.S. Wong, I. Ensminger, S. Garrity, D.Y. Hollinger, A. Noormets, & J. Peñuelas,
A remotely sensed pigment index reveals photosynthetic phenology in evergreen conifers,
Proc. Natl. Acad. Sci. U.S.A. 113 (46) 13087-13092,
https://doi.org/10.1073/pnas.1606162113 (2016).

Parameters:

spec_array2D array_like, shape (n_samples, n_features): 2D array-like of 1D spectral data series.
wavelength1D array_like: Wavelengths for the spectra data.
axisint, optional: Axis of spectral data series index, must be 0 or 1. If 0, each row represents a sample spectrum.

Returns:

pandas.DataFrame: Dataframe containing spectral indices of the samples.

Return type:

DataFrame