cell | R Documentation |
cell
is similar to confidence.ellipse
in the car
package,
except that cell
returns the points to form the ellipse(s)
which must be plotted with plot(...,type='l')
or lines(...)
.
It currently has methods for lm
(cell.default
) and glh
objects.
cell(object, ...)
## Default S3 method:
cell(object, which.coef, levels = 0.95, Scheffe = FALSE, dfn = 2, center.pch = 19,
center.cex = 1.5, segments = 51, xlab, ylab, las = par("las"), col = palette()[2], lwd = 2, lty = 1,
add = FALSE, ...)
## S3 method for class 'glh'
cell(object, which.coef = 1:2, levels = 0.95, Scheffe = FALSE, dfn = 2, center.pch = 19,
center.cex = 1.5, segments = 51, xlab, ylab, las = par("las"), col = palette()[2], lwd = 2,
lty = 1, add = FALSE, ...)
object |
A |
which.coef |
Indices of the coefficients, from |
levels |
One or more values of the confidence coverage of the ellipse(s). |
Scheffe |
Whether to apply Scheffe correction for dimensionality of the hypothesis |
dfn |
The Scheffe dimension used to calculate the radii of the ellipse(s).
i.e., use |
center.pch |
Plotting character used to mark the center of the ellipse(s) |
center.cex |
Size of the plotting character |
segments |
Number of line segments used to generate the ellipse(s) |
xlab |
Label for the horizontal coefficient of the plot. |
ylab |
Label for the vertical coefficient of the plot. |
las |
Style of axis labels |
col |
Color for the ellipse(s) |
lwd |
Line width for the ellipse(s) |
lty |
Line type for the ellipse(s) |
add |
This argument is not presently used |
... |
Other arguments passed down [where?] |
Returns an object of class ell
representing points on the boundaries of
the confidence ellipse(s).
Georges Monette
ell
, for details on ell
objects
# None yet
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