R: Secretin-induced blood glucose changes

secretin {ISwR} | R Documentation

## Secretin-induced blood glucose changes

### Description

The `secretin` data frame has 50 rows and 6 columns. It contains data from a glucose response experiment.

### Usage

    secretin

### Format

This data frame contains the following columns:

`gluc`

  a numeric vector, blood glucose level.

`person`

  a factor with levels `A`–`E`.

`time`

  a factor with levels `20`, `30`, `60`, `90` (minutes since injection), and `pre` (before injection).

`repl`

  a factor with levels `a`: 1st sample; `b`: 2nd sample.

`time20plus`

  a factor with levels `20+`: 20 minutes or longer since injection; `pre`: before injection.

`time.comb`

  a factor with levels `20`: 20 minutes since injection; `30+`: 30 minutes or longer since injection; `pre`: before injection.

### Details

Secretin is a hormone of the duodenal mucous membrane. An extract was administered to five patients with arterial hypertension. Primary registrations (double determination) of blood glucose were on graph paper and later quantified with the smallest of the two measurements recorded first.

### Source

Anon. (1977), Exercises in Applied Statistics, Exercise 5.8, Dept.\ of Theoretical Statistics, Aarhus University.

[Package ISwR version 2.0-7 Index]