Displaying 1 result from an estimated 1 matches for "unmarkedframeoccu".
2012 Aug 14
1
Error; contrasts can be applied only to factors with 2 or more levels
...,
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>
>
> umf<-unmarkedFrameOccu(y=y, siteCovs=ndvi, obsCovs=elev)
> summary(umf)
unmarkedFrame Object
121 sites
Maximum number of observations per site: 2
Mean number of observations per site: 2
Sites with at least one detection: 13
Tabulation of y observations:
0 1 <NA>
223 19 0
Site-level covariates...