@function spliceCorrection

[georgejr45]

Hi,
I have used spliceCorrection function on my ASD file and came across this following questions,
what length should someone expect for the param "wav" ?
What is the possibilities of an error if the value of "wav" is of different length than that of "x" ?

Yours,
Methun George

[sneumann]

Hi, this is mainly a question to improve the documentation.
After some experimenting we got the expected results when length(wav)==length(X), but didn't get an error with length(wav)==2 (i.e. c(minwav,maxwav). Docs could mention that 1) X is the intensity values, 2) wav the corresponding wavelengths.
Maybe throw a warning if length(wav)!=length(X) or length(wav)!=nrow(X), unless there might be (documented) reasons. Yours, Steffen

[l-ramirez-lopez]

Hello @sneumann @georgejr45
Thanks for the suggestions, I have made some modifications to the documentation for the upcoming version (0.2.8, see https://github.com/l-ramirez-lopez/prospectr/tree/v0.2.8)
Could you please give me a reproducible example where the function accepts length(wav)==2 for a spectral marix or vector with 3 or more wavelengths?

For example, imagine I have a splice problem at the wavelengh 1200 nm:

data("NIRsoil")
spliceCorrection(NIRsoil$spc, wav = c(1300, 1500), splice = c(1200))

As the wavelengths are wrong, from the above example I expect the error:
Error in spliceCorrection(NIRsoil$spc, wav = c(1300, 1500), splice = c(1200)) : length(wav) must be equal to ncol(X)