R: Actual and imaginary performances in equitation

HorseBeginners

R Documentation

Actual and imaginary performances in equitation

Description

This dataset gives the actual and motor imaginary performances (time) in horse-riding for 8 beginners.

Usage

data(HorseBeginners)

Format

A dataframe with 8 rows and 3 columns.

[,1]	Subject	factor	Anonymous subjects
[,2]	Actual	numeric	Actual performance (sec.)
[,3]	Imaginary	numeric	Imaginary performance (sec.)

Source

Private communication. Aymeric Guillot, CRIS, Lyon 1 University, FRANCE.

References

Louis, M. Collet, C. Champely, S. and Guillot, A. (2010) Differences in motor imagery time when predicting task duration. Research Quarterly for Exercise and Sport.

Examples

data(HorseBeginners)

# There is one outlier
with(HorseBeginners,plot(paired(Actual,Imaginary),type="profile"))

# This outlier has a great influence
# on the non robust Pitman-Morgan test of variances
with(HorseBeginners,Var.test(paired(Actual,Imaginary)))
with(HorseBeginners[-1,],Var.test(paired(Actual,Imaginary)))
with(HorseBeginners,grambsch.Var.test(paired(Actual,Imaginary)))
with(HorseBeginners,bonettseier.Var.test(paired(Actual,Imaginary)))