peeledHull
Computes and plots a peeled hull around a set of points onto a current graphics device.
peeledHull(data_matrix, x_axis = 1, y_axis = 2, percentage = 1, col = "black", lwd = 3, lty = 1)
data_matrix |
A set of data you would like to plot on 2 dimensions (e.g., a scatter plot). Can be original data or factor scores or anything with at least 2 columns. |
x_axis |
Which axis is the x-axis? Default is 1. |
y_axis |
Which axis is the y-axis? Default is 2. |
percentage |
The percentage of points that should be enveloped by the hull. |
col |
The color of the hull (see col in plot()). |
lwd |
The thickness of the hull line (see lwd in plot()) |
lty |
The line type (see lty in plot()). |
The code for this function was (barely) adapted from Michael Greenacre's book on correspondence analysis. All credit for this code should go to Michael Greenacre; I only turned it into a function. The original code can be found at http://carme-n.org/?sec=code2
Derek Beaton turned Michael Greenacre's code into a function.
Greenacre, M. J. (2007). Correspondence Analysis in Practice. Chapman and Hall.
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