Barycentric plots
tritrafo(x, y = NULL, z = NULL, check = TRUE, tolerance = 0.0001)
x |
Vector of fractions of first component
OR 3-column matrix containing all three components (omitting |
y |
(optional) vector of fractions of second component. |
z |
(optional) vector of fractions of third component. |
check |
if |
tolerance |
tolerance for above sum check. |
Projects the mixture given by x, y, and z
with x, y, z between one and zero and x+y+z=1 into
a two-dimensional space.
For further details see triplot.
A matrix with two columns corresponding to the two dimensions.
Christian Röver, roever@statistik.tu-dortmund.de
tritrafo(0.1, 0.2, 0.7) tritrafo(0.1, 0.2, 0.6) # warning triplot() points(tritrafo(0.1, 0.2, 0.7), col="red") tripoints(0.1, 0.2, 0.7, col="green") # the same tritrafo(c(0.1,0.2), c(0.3,0.4), c(0.6,0.4)) tritrafo(diag(3)) point <- c(0.25,0.6,0.15) triplot(point, pch=16) text(tritrafo(point), "(0.25, 0.60, 0.15)", adj=c(0.5,2)) # add a label
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