search for: survship

Displaying 1 result from an estimated 1 matches for "survship".

2007 Mar 02
0
Matrix looping
...is my problem. I have three ages: Nage<-c(1,2,3) I have an weight matrix: Wt<-c( 0.04952867, 0.23808432, 0.34263880) I have an age schedule of maturity: Mat<-c(0,1,1) where 0 is not mature, and 1 is mature I have a vulnerability schedule: Vul<-c(0,1,1) I have an survivorship schedule: Survship<-c(1,0.4,0.16) I also have leading parameters R0<-130.66; recK<-3.068; a<-5.48; b<-0.0282; S<-0.4 I have annual catches for 100 years, ct<-runif(100,5,20) Now I want a matrix of 100 years x 3 ages yr<-c(1:100) Nt<-matrix(0,nrow=length(yr)+1),ncol=length(Nage)) Now the f...