I am getting the following error when trying to fit a mask to my capthist. I think I need to remove the unused occasions but how do I do this?
Checking data
Session 1
Errors in traps
Occasions when no detectors 'used'
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Error in secr.fit(ocelot_capthist, mask = mask_1, model = list(D ~ 1, :
'verify' found errors in 'capthist' argument