Hello,

I'd like to do a projection matrix (projection.matrix with popbio package) and then a bootstrap with the function boot.transition (package popbio too) in order to calculate confidence intervals of lambda. I already calculated deterministic lambda thanks to estimated demographic parameters.

I have this table :

[I can put only one picture so I put it on the next comments as PICT1]

I take for example the year paired 2001-2002 and I transform the columns names into "stage" and "fate" that way :

data2=select(data, X2001, X2002)

library(questionr)

data2 <- rename.variable(data2, "X2001", "stage")

data2 <- rename.variable(data2, "X2002", "fate")

I get this table :

Then, I try :

stages <- c("2", "3", "4", "5")

projection.matrix(data2, stage, fate, sort = stages)

But I have an error message : "Missing a fertility column with individual fertility rates"

Normally, I have a matrix construct like that (it is just to give you an idea) :

[I can put only one picture so I put it on the next comments as PICT2]

Can you help me please ?

Thanks