fda (version 1.1.8)

gait: Hip and knee angle while walking

Description

Hip and knee angle in degrees through a 20 point movement cycle for 39 boys

format

An array of dim c(20, 39, 2) giving the "Hip Angle" and "Knee Angle" for 39 repetitions of a 20 point gait cycle.

source

Ramsay, James O., and Silverman, Bernard W. (2006), Functional Data Analysis, 2nd ed., Springer, New York.

Details

The componenents of dimnames(gait) are as follows: [[1]] standardized gait time = seq(from=0.025, to=0.975, by=0.05)

[[2]] subject ID = "boy1", "boy2", ..., "boy39"

[[3]] gait variable = "Hip Angle" or "Knee Angle"

Examples

plot(gait[,1, 1], gait[, 1, 2], type="b")