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Compute safe axis limits covering data and ellipsoid boundary

Source: R/plot_utilities.R
safe_lims.Rd

Returns x and y ranges that span both a matrix of data points and a data frame of ellipsoid boundary points, so the ellipsoid boundary is never clipped by the data extent when passed to plot().

Usage

safe_lims(pts_xy, ell_xy)

Arguments

pts_xy

A data frame or matrix with at least two columns. The first column is used for x, the second for y.

ell_xy

A data frame or matrix of ellipsoid boundary points with the same column structure as pts_xy.

Value

A named list with elements xlim and ylim, each a numeric vector of length 2.