st_dev {rGV}

Calculate standard deviation (SD)

Description

Calculate standard deviation (SD)

Usage

st_dev(x, times, overall = TRUE, interval = 1)

Arguments

x

vector of glucose readings

times

vector of corresponding times, in minutes

overall

a logical, equal to TRUE you want the CV for the entire dataset, or equal to FALSE if you would prefer many CV values over a moving window

interval

size (in hours) of the moving window to be used if overall is false. Null value is 1.

Value

Either a numeric standard deviation over the entire dataset or a vector of SD values over windows of the data.

Examples

st_dev(x=c(rep(100, 10), rep(120, 10), 105, 85), times=seq(0, 1260, 60), overall=TRUE)