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2002 Mar 27
2
Error with nls
...ions to be fitted. The remaining parameters are unknown and should follow from the fit. assuming that g(t) has the functional form: b4i + (b40-b4i)*exp(-k4*t) (after calculations of 2 papers of A4) follows the solution: L5L6 <- function(b40, b4i, k4, t, p50, p56, p60, p65, pc, ph, pd, pb50, pb60) { k50 <- exp(p50) k56 <- exp(p56) k60 <- exp(p60) k65 <- exp(p65) c <- exp(pc) h <- exp(ph) d <- exp(pd) b50 <- exp(pb50) b60 <- exp(pb60) a <- (k50+k56) b <- k65 e <- k56 f <- (k60+k65) z1 <- (-(a+f)/2 - sqrt((a+...