Bronchopulmonary dysplasia data

Description

The bpd data frame has data on 223 human babies.

Usage

data(bpd)

Format

This data frame contains the following columns:

birthweight

birthweight of baby (grammes).

BPD

an indicator of presence of bronchopulmonary dysplasia (BPD): 0=absent, 1=present.

Source

Pagano, M. and Gauvreau, K. (1993). Principles of Biostatistics. Duxbury Press.

References

Ruppert, D., Wand, M.P. and Carroll, R.J. (2003)
Semiparametric Regression Cambridge University Press.
http://stat.tamu.edu/~carroll/semiregbook/

Examples

library(SemiPar)
data(bpd)
attach(bpd)
plot(birthweight,BPD)
boxplot(split(birthweight,BPD),col="green")

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(SemiPar)
> png(filename="/home/ddbj/snapshot/RGM3/R_CC/result/SemiPar/bpd.Rd_%03d_medium.png", width=480, height=480)
> ### Name: bpd
> ### Title: Bronchopulmonary dysplasia data
> ### Aliases: bpd
> ### Keywords: datasets
> 
> ### ** Examples
> 
> library(SemiPar)
> data(bpd)
> attach(bpd)
> plot(birthweight,BPD)
> boxplot(split(birthweight,BPD),col="green")
> 
> 
> 
> 
> 
> dev.off()
null device 
          1 
>