estimates coordinates of elements, neatly arranged on a plot.
vector specifying the number of elements in each row, or
2-columned matrix with element position, or
horizontal shift (x).
vertical shift (y).
total number of elements to be positioned - only if pos=
scaling factor as a function of graph size.
the position of the elements are specified with
pos, which is
NULL, or a vector specifying the number of elements on a row,
or a 2-columned matrix specifying the (x,y) position of each element.
NULL, the elements will be arranged
on a circle; in this case, the number of elements to be
positioned must be specified with
pos is a vector, it specifies the number of elements
in each row (if
hor =TRUE) or in each column (if
hor = FALSE).
For instance, with
pos = c(3,2,1) the
elements will be arranged in 3 rows (length of vector); on the top row
3 elements; on the second row 2; and on the third row 1
element will be positioned. All elements within a row are equally
distributed horizontally; all rows are equally distributed vertically;
pos is a matrix, it specifies the x(1st column) and
y(2nd column) position of each element and is returned as such.
The offset from the x-axis and from the y-axis can be changed with
2-columned matrix, with coordinates (x,y) of each of the elements
Karline Soetaert <firstname.lastname@example.org>
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openplotmat(main = "coordinates") text(coordinates(N = 6), lab = LETTERS[1:6], cex = 2) text(coordinates(N = 8, relsize = 0.5), lab = letters[1:8], cex = 2) openplotmat(main = "coordinates") text(coordinates(pos = c(2, 4, 2)), lab = letters[1:8], cex = 2) plot(0, type = "n", xlim = c(0, 5), ylim = c(2, 8), main = "coordinates") text(coordinates(pos = c(2, 4, 3), hor = FALSE), lab = 1:9, cex = 2)
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