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Calculate glucose level iqr

Source: R/iqr_glu.R
iqr_glu.Rd

The function iqr_glu outputs the distance between the 25th percentile and the 25th percentile of the glucose values in a tibble object.

Usage

iqr_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 IQR value is returned. If a vector of glucose values is passed, then a tibble object with just the IQR 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 IQR values is returned. NA glucose values are omitted from the calculation of the IQR.

Examples

data(example_data_1_subject)
iqr_glu(example_data_1_subject)
#> # A tibble: 1 × 2
#>   id          IQR
#>   <fct>     <dbl>
#> 1 Subject 1    44

data(example_data_5_subject)
iqr_glu(example_data_5_subject)
#> # A tibble: 5 × 2
#>   id          IQR
#>   <fct>     <dbl>
#> 1 Subject 1    44
#> 2 Subject 2    74
#> 3 Subject 3    48
#> 4 Subject 4    40
#> 5 Subject 5    77