Parametrizes the piecewise linear trace given by the input. For vertical lines, $Inf$ is returned.
1 |
x |
and 'y' are the x-coordinates and y-coordinates of the input trace, given as separate vectors 'x' and 'y', or as a list or matrix 'x' holding both the x-coordinates and the y-coordinates, or if y==NULL 'x' is interpreted as 'y' and x=seq_along(x). |
ang.out |
is TRUE if angles are to be returned instead of slope. |
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