K80 <- function (alpha, beta){
Q = matrix(ncol = 4, nrow = 4)
Q[,1] <- c(-(alpha+2*beta), alpha, beta, beta)
Q[,2] <- c(alpha, -(alpha+2*beta), beta, beta)
Q[,3] <- c(beta, beta, -(alpha+2*beta), alpha)
Q[,4] <- c(beta, beta, alpha, -(alpha+2*beta))
colnames(Q) = c("T", "C", "A", "G")
rownames(Q) = c("T", "C", "A", "G")
return(Q)
}
K80<- function(alpha, beta, t){
d = (alpha+2*beta)/t
k = alpha/beta
P0.t <- (1/4)+((1/4)*exp((-4*d)/(k+2)))+((1/2)*exp((-2*d*(k+1))/(k+2)))
P0.t <- (1/4)+((1/4)*exp((-4*d)/(k+2)))-((1/2)*exp((-2*d*(k+1))/(k+2)))
P2.t <- (1/4)-((1/4)*exp(-4*d/(k+2)))
Pt = matrix(ncol = 4, nrow = 4)
Pt[,1] <- c(P0.t, P1.t, P2.t, P2.t)
Pt[,2] <- c(P1.t, P0.t, P2.t, P2.t)
Pt[,3] <- c(P2.t, P2.t, P0.t, P1.t)
Pt[,4] <- c(P2.t, P2.t, P1.t, P0.t)
colnames(Pt) = c("T", "C", "A", "G")
rownames(Pt) = c("T", "C", "A", "G")
return(Pt)
}
dhat <- function(S, V){
d.hat <- (-1/2)*log(1-2*S-V)-(1/4)*log(1-2*V)
return(d.hat)
}
khat <- function(S, V){
k.hat <- 2*log(1-2*S-V)
k.hat <- k.hat/log(1-2*V)
k.hat <- k.hat -1
return(k.hat)
}
#S = 0.08861
#V = 0.00633
#dhat(S, V)
#khat(S, V)
#
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