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. 2019 May 3;7:e6926. doi: 10.7717/peerj.6926

Table 3. |r| between SMC and spectral indices based on different pretreatments.

Spectral indices	Pretreatment method
Spectral indices	R	FDR	SDR	CR	A	FDA	SDA
DI	0.724	0.662	0.551	0.737	0.748	0.742	0.577
NDI	0.748	0.674	0.487	0.755	0.725	0.616	0.561
RI	0.747	0.668	0.475	0.755	0.720	0.624	0.424
PI	0.772	0.693	0.554	0.746	0.773	0.738	0.569