Calculate mean glucose level — mean

The function mean_glu is a wrapper for the base function mean(). Output is a tibble object with subject id and mean values.

Usage

mean_glu(data)

Arguments

data: DataFrame object with column names "id", "time", and "gl", or numeric vector of glucose values.

Value

If a data.frame object is passed, then a tibble object with two columns: subject id and corresponding mean value is returned. If a vector of glucose values is passed, then a tibble object with just the mean value is returned. as.numeric() can be wrapped around the latter to output just a numeric value.

Details

A tibble object with 1 row for each subject, a column for subject id and a column for the mean values is returned. NA glucose values are omitted from the calculation of the mean.

Examples

data(example_data_1_subject)
mean_glu(example_data_1_subject)
#> # A tibble: 1 × 2
#>   id         mean
#>   <fct>     <dbl>
#> 1 Subject 1  124.

data(example_data_5_subject)
mean_glu(example_data_5_subject)
#> # A tibble: 5 × 2
#>   id         mean
#>   <fct>     <dbl>
#> 1 Subject 1  124.
#> 2 Subject 2  218.
#> 3 Subject 3  154.
#> 4 Subject 4  130.
#> 5 Subject 5  175.