Creates a layer which is the subset of points lying on the hull (convex or alpha) of the set of points specified.
l_layer_hull( widget, x, y, color = "black", linewidth = 1, label = "hull", parent = "root", index = 0, group = NULL, active = TRUE, ... )
widget | `loon` widget path name as a string |
---|---|
x | The coordinates of |
y | The coordinates of |
color | the line color of each hull |
linewidth | the line width |
label | label used in the layers inspector |
parent | parent group layer |
index | of the newly added layer in its parent group |
group | separate x vector or y vector into a list by group |
active | a logical determining whether points appear or not (default is |
... | other arguments to modify |
an l_layer
widget
Coordinates: the x
or y
can be a list or a vector.
If they are vectors, the argument group
will be used to set the groups.
If they are not provided, the x
will be inherited from the widget
if(interactive()) { p <- l_plot(iris, color = iris$Species) l <- l_layer_hull(p, group = iris$Species) }