Displaying 2 results from an estimated 2 matches for "expegk".
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2003 Jul 14
2
problem with coding for 'optim' in R
...mp
>
> bio<-matrix(NA, ncol=13, nrow=length(Day))
> W<-NULL
> C<-NULL
> ASMR<-NULL
> SMR<-NULL
> A<-NULL
> F<-NULL
> U<-NULL
> SDA<-NULL
> Gr<-NULL
> Hg<-NULL
> Ed<-NULL
> GHg<-NULL
> K<-NULL
> Expegk<-NULL
> EGK<-NULL
> p<-NULL
> ACT<-NULL
>
>
> p <- 0.558626306252032
> ACT <- 1.66764519286918
>
> q<-c(p,ACT)
>
> #introduce function to solve
> #f <- function (q)
> #{
>
> M<- length(Day) #number of days iterat...
2003 Jul 15
7
Excel can do what R can't?????
...]))/(CTM-CTO)
Vr<-(RTM-(temp[,3]))/(RTM-RTO)
comp<- cbind (Day, jday, Temp, Vc, Vr)
#comp
bio<-matrix(NA, ncol=13, nrow=length(Day))
W<-NULL
C<-NULL
ASMR<-NULL
SMR<-NULL
A<-NULL
F<-NULL
U<-NULL
SDA<-NULL
Gr<-NULL
Hg<-NULL
Ed<-NULL
GHg<-NULL
K<-NULL
Expegk<-NULL
EGK<-NULL
p<-NULL
ACT<-NULL
#starting values for p, ACT
p <- 1 # 0.558626306252032 #solution set for p, ACT from excel 'solver' f'n
ACT <- 2 # 1.66764519286918
q<-c(p,ACT)
#specify sttarting values
#q0<-c(p = 1, ACT = 1)
#introduce function to solve
f...