Last data update: 2014.03.03
R: TV dataset
TV dataset
Description
The TVbo
dataset comes from Bang and Olufsen company. The main purpose was to test products, specified by two attributes Picture and TVset. 15 different response variables (characteristics of the product) were assessed by trained panel list.
Usage
TVbo
Format
Assessor
factor: numbering identifying assessors
TVset
factor: attribute of the product
Picture
factor: attribute of the product
15 Characteristics of the product
numeric variables: Coloursaturation, Colourbalance, Noise, Depth, Sharpness, Lightlevel, Contrast, Sharpnessofmovement, Flickeringstationary, Flickeringmovement,
Distortion, Dimglasseffect, Cutting, Flossyedges, Elasticeffect
Source
Bang and Olufsen company
Examples
## import lme4 package and lmerTest package
library(lmerTest)
## Not run:
m <- lmer(Coloursaturation ~ TVset*Picture+
(1|Assessor)+(1|Assessor:TVset), data=TVbo)
step(m, test.effs="TVset", reduce.fixed=FALSE, reduce.random=TRUE)
## End(Not run)
Results