fda (version 2.4.0)

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.

Ramsay, James O., and Silverman, Bernard W. (2002), Applied Functional Data Analysis, Springer, New York.

Details

The components 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")