Displaying 1 result from an estimated 1 matches for "lightresponse".
2012 Dec 05
1
nlme starting values are not the correct length
...5
4 sw 1 -1.3558 1.6914
5 jg 0 6.1626 2000.9351
5 jg 0 7.5573 1499.6581
5 jg 0 7.7129 1249.5073
5 jg 0 7.442 1000.7276
5 jg 0 7.5135 799.1286
5 jg 0 7.1559 599.5568
5 jg 0 6.8161 400.3576
5 jg 0 4.0097 199.7442
5 jg 0 2.7202 101.1253
5 jg 0 1.0746 51.1787
5 jg 0 -0.5913 0.975
This works so far:
lightresponse<-groupedData(Photo~PARi|Subject,data=lightr,outer = ~ Species * Fert,labels = list(x = "PAR", y = "CO2 uptake rate"),units = list(x = "(photon s-1)", y = "(umol/m?2 s)"))
Photo.resp<-function(PARi,A,B,C)A*(1-exp(-C*PARi/A))-B
Photo.resp<-deriv ((~A...