sd_glu {iglu} | R Documentation |
Calculate sd glucose level
Description
The function sd_glu is a wrapper for the base function sd(). Output is a tibble object with subject id and sd values.
Usage
sd_glu(data)
Arguments
data |
DataFrame object with column names "id", "time", and "gl", or numeric vector of glucose values. |
Details
A tibble object with 1 row for each subject, a column for subject id and a column for the sd values is returned. NA glucose values are omitted from the calculation of the sd.
Value
If a data.frame object is passed, then a tibble object with two columns: subject id and corresponding sd value is returned. If a vector of glucose values is passed, then a tibble object with just the sd value is returned. as.numeric() can be wrapped around the latter to output just a numeric value.
Examples
data(example_data_1_subject)
sd_glu(example_data_1_subject)
data(example_data_5_subject)
sd_glu(example_data_5_subject)
[Package iglu version 4.0.0 Index]