endometriosis: Endometriosis study

In PBImisc: A Set of Datasets Used in My Classes or in the Book 'Modele Liniowe i Mieszane w R, Wraz z Przykladami w Analizie Danych'

Description

How the endometriosis affects concetration of alpha and beta factors in the blood.

Usage

data(endometriosis)

Format

data.frame with 165 obs. and 4 variables

disease

disease, blood samples were taken from women with endometriosis of from healthy ones

phase

phase in the menstrual cycle as the examination day (proliferative or secretory)

alpha.factor, beta.factor

concentration of alpha and beta factors in blood

Details

Dataset used as example of ANCOVA

Source

Artificial dataset generated to be consistent with Ula S. study

Examples

data(endometriosis)
library(lattice)
xyplot(log(alpha.factor)~log(beta.factor)|disease*phase, 
            data=endometriosis, type=c("p", "r"))
summary(aov(alpha.factor~beta.factor*disease*phase, data=endometriosis))

Example output

                           Df Sum Sq Mean Sq F value Pr(>F)  
beta.factor                 1    184   183.6   3.135 0.0786 .
disease                     1    374   374.5   6.393 0.0124 *
phase                       1    215   215.3   3.675 0.0570 .
beta.factor:disease         1     12    12.1   0.206 0.6507  
beta.factor:phase           1    123   123.4   2.107 0.1486  
disease:phase               1    277   277.0   4.728 0.0312 *
beta.factor:disease:phase   1      0     0.5   0.008 0.9293  
Residuals                 157   9196    58.6                 
---
Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1

PBImisc documentation built on May 2, 2019, 4:51 a.m.