Calculate standard deviation for each location under each regime.
Arguments
- x
A data.frame or matrix.
- label
A vector of regime labels. Its length must be the same as
the number rows in x.
Value
A list of standard deviations for each regime.
Examples
set.seed(123)
x <- matrix(rnorm(200), nrow = 100)
label <- sample(1:2, 100, replace = TRUE)
sd_rs(x, label = factor(label))
#> $`Regime 1`
#> [1] 1.0091067 0.9136253
#>
#> $`Regime 2`
#> [1] 0.7816577 1.0241517
#>