bfa.boot2.ls {bifurcatingr} | R Documentation |
This function performs double bootstrapping of the least squares estimators
of the autoregressive coefficients in a bifurcating autoregressive (BAR)
model of any order p
as described in Elbayoumi & Mostafa (2020).
bfa.boot2.ls(z, p, burn = 5, B1, B2)
z |
a numeric vector containing the tree data |
p |
an integer determining the order of bifurcating autoregressive model to be fit to the data |
burn |
number of tree generations to discard before starting the bootstrap sample (replicate) |
B1 |
number of bootstrap samples (replicates) used in first round of bootstrapping |
B2 |
number of bootstrap samples (replicates) used in second round of bootstrapping |
boot.est |
a matrix containing the first-stage bootstrapped least squares estimates of the autoregressive coefficients |
boot2 |
a matrix containing the second-stage bootstrapped least squares estimates of the autoregressive coefficients |
Elbayoumi, T. M. & Mostafa, S. A. (2020). On the estimation bias in bifurcating autoregressive models. Stat, 1-16.
z <- bfa.tree.gen(31, 1, 1, 1, 0.5, 0.5, 0, 10, c(0.7)) bfa.boot2.ls(z, p=1, B1=99, B2=9)