dot-getELLIPSE: Obtain ellipse coordinates from (PCO) X,Y and a factor value

In leca-dev/RFate: FATE with R

Obtain ellipse coordinates from (PCO) X,Y and a factor value

Description

Obtain ellipse coordinates from (PCO) X,Y and a factor value

Usage

util.ELLIPSE2(mx, my, vx, cxy, vy, coeff)
util.ELLIPSE1(x, y, z)
.getELLIPSE(xy, fac)

Arguments

mx	\Sigma x * \frac{z}{\Sigma z}
my	\Sigma y * \frac{z}{\Sigma z}
vx	\Sigma (x - mx) * (x - mx) * \frac{z}{\Sigma z}
cxy	\Sigma (x - mx) * (y - my) * \frac{z}{\Sigma z}
vy	\Sigma (y - my) * (y - my) * \frac{z}{\Sigma z}
coeff	default 1
xy	a data.frame or matrix with 2 columns corresponding to individuals coordinates, extracted from example from dudi.pco analysis
fac	a vector containing group labels for individuals (with length(fac) = nrow(xy))
x	a vector corresponding to abscissa coordinates of individuals (column 1 of xy)
y	a vector corresponding to ordinate coordinates of individuals (column 2 of xy)
z	a data.frame with one column for each level represented in fac and nrow(z) = length(fac) = nrow(xy). Values are corresponding to the relative representation of each level (for level i : \frac{1}{N_i})

leca-dev/RFate documentation built on Sept. 19, 2024, 6:09 a.m.