Trypsin by age groups

Description

The trypsin data frame has 271 rows and 3 columns. Serum levels of immunoreactive trypsin in healthy volunteers (faked!).

Usage

fake.trypsin

Format

This data frame contains the following columns:

trypsin

a numeric vector, serum-trypsin in ng/ml.

grp

a numeric vector, age coding. See below.

grpf

a factor with levels 1: age 10–19, 2: age 20–29, 3: age 30–39, 4: age 40–49, 5: age 50–59, and 6: age 60–69.

Details

Data have been simulated to match given group means and SD.

Source

D.G. Altman (1991), Practical Statistics for Medical Research, Table 9.12, Chapman & Hall.

Examples

plot(trypsin~grp, data=fake.trypsin)

Results

R version 3.3.1 (2016-06-21) -- "Bug in Your Hair"
Copyright (C) 2016 The R Foundation for Statistical Computing
Platform: x86_64-pc-linux-gnu (64-bit)

R is free software and comes with ABSOLUTELY NO WARRANTY.
You are welcome to redistribute it under certain conditions.
Type 'license()' or 'licence()' for distribution details.

R is a collaborative project with many contributors.
Type 'contributors()' for more information and
'citation()' on how to cite R or R packages in publications.

Type 'demo()' for some demos, 'help()' for on-line help, or
'help.start()' for an HTML browser interface to help.
Type 'q()' to quit R.

> library(ISwR)
> png(filename="/home/ddbj/snapshot/RGM3/R_CC/result/ISwR/fake.trypsin.Rd_%03d_medium.png", width=480, height=480)
> ### Name: fake.trypsin
> ### Title: Trypsin by age groups
> ### Aliases: fake.trypsin
> ### Keywords: datasets
> 
> ### ** Examples
> 
> plot(trypsin~grp, data=fake.trypsin)
> 
> 
> 
> 
> 
> dev.off()
null device 
          1 
>