search for: fday

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2008 Dec 06
0
Inversing a non-monotonic spline
...106 4 69 368 31 184 4 78 386 39 66 1 204 233 39 83 1 265 360 39 87 1 270 308 39 236 1 243 323 39 174 2 244 300 39 181 2 257 366 39 241 2 305 408 39 282 2 299 599 39 125 3 153 402 39 156 3 213 384 39 183 3 227 408 39 217 3 235 360 39 159 4 205 362 39 180 4 182 314 39 189 4 224 488 39 246 4 265 468 fdays = factor(Days) fvar = factor(variety) my model is: test1 <- gam(O_EC~s(WRM)+PWM+fdays+fvar) Now, I can easily measure O_EC, PWM, fvar, and fdays, but not WRM. I can get a good estimate for s(WRM) by straight algebra and get a rough eyeball estimate of WRM from the s(WRM) vs WRM plot: s(WRM...
2006 Feb 03
0
Cause of Error 1:nrow(X) : argument NA / NaN
...and 9 variables Maximum # NAs:0 Labels Units Levels Storage dose Dose mg integer day integer hour integer subject Subject integer conc Concentration ng/mL double fday 10 integer fsubject 37 integer fdose Dose 4 integer time Time hours integer ..... > What I am doing wrong ? Sorry for not providing a reproducible example as when I generate randomly the 3 variable...