sdgvp {gluvarpro}

standard deviation

Description

Standard deviation is a measure of glycemic variability that quantify the amount of variation or dispersion of a set of data values.

Usage

sdgvp(x, t = 24)

Arguments

x

Data-set with data frame format containing three columns:

date: date of the observation with format yyyy/mm/dd.

time: time of the observation with 24 hour format hh:mm:ss.

glucose: glucose value of the observation.

t

Numeric value with interval for calculating the measurement. Permitted values are 4, 6, 8, 12 and 24 hours. Default value of 24 hours.

Value

A data frame containing the sd values.

Author(s)

Sergio Contador.

References

Becker, R. A., Chambers, J. M. and Wilks, A. R. (1988). The New S Language. Wadsworth & Brooks/Cole.

See Also

cvgvp(x, t = 24)

Examples

data("datagvp1")
sdgvp(datagvp1)