| stretch | R Documentation | 
Given a set of locations, this function approximates the stretching direction of the set by calculating the angle of the main axis of the bivariate 95
stretch(x, y)
| x | A vector of x coordinates. | 
| y | A vector of y coordinates. | 
A single numeric value corresponding to the angle (in radians) of the main axis of the bivariate 95
Simon Garnier, garnier@njit.edu
sphericity
x <- rnorm(25) y <- rnorm(25, sd = 3) stretch(x, y)
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