Contprof | R Documentation |
Produces a contour plot of the profile log-likelihood, which is a function of two parameters only.
contprof.gb2(z, w=rep(1,length(z)), resol, low=0.1, high=20)
z |
numeric; vector of data values. |
w |
numeric; vector of weights. Must have the same length as |
resol |
numeric; number of grid points horizontally and vertically. For better graph quality, we recommend a value of 100. |
low, high |
numeric; lower and upper factors for scale. |
The matrix containing the values to be plotted (NAs are allowed) is of size resol
\times resol
.
The locations of the grid lines at which the values of the profile log-likelihood are measured are equally-spaced values between low
and high
multiplied by the initial parameters.
A contour plot of the profile log-likelihood. The initial Fisk estimate is added as point "F".
Monique Graf
fisk
for the Fisk estimate, ProfLogLikelihood
for the profile log-likelihood and contour
(package graphics
) for more details on contour plots.
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