[R] need help with errors in betareg analysis
knussear
knussear at mac.com
Fri Feb 13 18:17:43 CET 2009
Hi
I'm trying to fit a model in betareg and I'm getting errors, but have no
idea what they mean or how to solve them. Does anyone have experience with
this?
> model <- betareg(ACT ~ ST*SoilT, data = actDL_F)
Warning messages:
1: In sqrt(W) : NaNs produced
2: In sqrt(W) : NaNs produced
3: In sqrt(1 + phihat) : NaNs produced
data summaries don't give any na's or problems I can see
> summary(actDL_F$ACT)
Min. 1st Qu. Median Mean 3rd Qu. Max.
0.0006227 0.0505600 0.2163000 0.2643000 0.4084000 0.9994000
> summary(actDL_F$ST)
Min. 1st Qu. Median Mean 3rd Qu. Max.
8.085 29.560 34.760 33.870 39.430 49.610
> summary(actDL_F$SoilT)
Min. 1st Qu. Median Mean 3rd Qu. Max.
17.42 20.95 24.18 24.26 27.21 31.19
Thanks
Ken
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