feld1 {tlm} | R Documentation |
Cat Allergen Concentrations
Description
Simulated data for cat allergen concentrations (Fel d 1) in 471 homes, measured in both the living room and the bed mattress.
Usage
feld1
Format
A data.frame
with 471 observations on the following 5 variables:
- mattress
Feld d 1 concentration in the bed mattress (
\mu
g/g).- room
Feld d 1 concentration in the living room (
\mu
g/g).- logmattress
logarithm of
mattress
.- logroom
logarithm of
room
.- cat
a factor with levels
no
andyes
, indicating cat ownership.
Details
Data were simulated to emulate true data pattern observed in a real study (see References).
Source
See References.
References
Basagana X et al. Domestic aeroallergen levels in Barcelona and Menorca (Spain). Pediatric Allergy and Immunology. 2002;13(6):412-417.
Examples
data(feld1)
par(las = 1, mfrow = c(1, 2))
with(feld1, plot(mattress, room, col = as.numeric(cat)))
with(feld1, plot(logmattress, logroom, col = as.numeric(cat)))
[Package tlm version 0.2.0 Index]