stabilo (version 0.1.1)

sttkangle: Quantifies the Angle of a Statokinesigram

Description

Computes the angle of of a given statokinesigram, with respect to the x axis, by fitting an ellipse containing 95 percent of statokinesigram's points.

Usage

sttkangle(dados)

Value

The angle, in degrees, of the fitted ellipse on the given statokinesigram sttkangle.

Arguments

dados

data frame with two columns "x" and "y"

Author

Jose Magalhaes de Oliveira

Details

'dados' is a data frame containing two columns named "x" and "y". The pairs (x, y) are the coordinates of the center of pressure acquired in a period of time.

See Also

sttkarea, sttkellipseplot

Examples

x <- c(1,3,7,5,9,4,3,6,8,2,8,9,4,5,7,3,4,7,9,3,2,5,3,4,8,2,9,7,4,2)
y <- c(6,3,9,1,3,7,4,9,6,1,7,3,9,7,2,6,3,4,8,1,9,3,6,8,1,6,2,9,8,3)

COP <- data.frame(x, y)

COPangle <- sttkangle(COP)