Opened 6 years ago
Closed 5 years ago
#3385 closed task (fixed)
Typo in the i.vi man page
|Reported by:||micha||Owned by:|
I think there's a small error in the equation for MSAVI2 in the man page for i.vi. Here's what appears: MSAVI2 = (1/2)*(2(NIR+1)-sqrt((2*NIR+1)2-8(NIR-red)))
Should be (incorrect parentheses):
MSAVI2 = (1/2)*(2*NIR+1-sqrt((2*NIR+1)2-8(NIR-red)))
Can anyone verify?
Change History (7)
comment:1 by , 6 years ago
comment:2 by , 6 years ago
it might be a typo indeed. can you correct the source code and submit a revision?
comment:3 by , 6 years ago
|Milestone:||7.2.2 → 7.2.3|
Ticket retargeted after milestone closed
comment:4 by , 5 years ago
comment:5 by , 5 years ago
comment:6 by , 5 years ago
comment:7 by , 5 years ago
|Status:||new → closed|
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I see that the source for MSAVI2 in i.vi is consistant with the docs. The equation in the source is:
Qi, J., Chehbouni, A., Huete, A.R., Kerr, Y.H., Sorooshian, S., 1994. A Modified Soil Adjusted Vegetation Index. REMOTE SENS. ENVIRO 48, 119–126.
The MSAVI2 equation is slightly different. There it's 0.5*(2*nir + 1 - sqrt(...))