| coordinates {diagram} | R Documentation |
estimates coordinates of elements, neatly arranged on a plot.
coordinates(pos=NULL, mx=0.0, my=0.0, N=length(pos), hor=TRUE, relsize=1)
pos |
vector specifying the number of elements in each row, or
2-columned matrix with element position, or NULL.
|
mx |
horizontal shift (x). |
my |
vertical shift (y). |
N |
total number of elements to be positioned - only if pos=NULL.
|
hor |
only if pos is a 2-columned matrix. In this case, when
hor = TRUE, pos specifies number of elements per row;
when FALSE per column.
|
relsize |
scaling factor as a function of graph size. |
the position of the elements are specified with pos, which is
either 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.
pos is NULL, the elements will be arranged
on a circle; in this case, the number of elements to be
positioned must be specified with N.
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 hor=TRUE and 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
mx and my.
2-columned matrix, with coordinates (x,y) of each of the elements
Karline Soetaert <k.soetaert@nioo.knaw.nl>
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)