Extracts variance-covariance or correlation matrix from a
brokenstick
object.
Usage
get_omega(x, what = c("cov", "cor"), names = NULL)
Arguments
- x
Object of class
brokenstick
- what
Either
"cov"
(default) for the covariance matrix, or"cor"
for the correlation matrix.- names
A vector of column names of. If not specified, the function automatically drops the entries corresponding to the right boundary. Specify
names = "all"
to prevent dropping.
Examples
f1 <- brokenstick(hgt_z ~ age | id, smocc_200[1:1000, ], knots = 0:3, seed = 1)
get_omega(f1, "cor", c("age_1", "age_2"))
#> age_1 age_2
#> age_1 1.0000000 0.9147632
#> age_2 0.9147632 1.0000000