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# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Library General Public
# License as published by the Free Software Foundation; either
# version 2 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Library General Public License for more details.
#
# You should have received a copy of the GNU Library General
# Public License along with this library; if not, write to the
# Free Foundation, Inc., 59 Temple Place, Suite 330, Boston,
# MA 02111-1307 USA
################################################################################
# FUNCTION: ELLIPTICAL COPULAE RANDOM DEVIATES:
# rellipticalCopula Generates elliptical copula variates
# rellipticalSlider Interactive plots of random variates
# FUNCTION: ELLIPTICAL COPULAE PROBABILITY:
# pellipticalCopula Computes elliptical copula probability
# pellipticalSlider Interactive plots of probability
# FUNCTION: ELLIPTICAL COPULAE DENSITY:
# dellipticalCopula Computes elliptical copula density
# dellipticalSlider Interactive plots of density
################################################################################
test.rellipticalCopula =
function()
{
# Random Number Generator:
R <- rellipticalCopula(1000, type = "norm")
plot(R, pch = 19, col = "steelblue", main = "norm")
grid()
R <- rellipticalCopula(1000, type = "cauchy")
plot(R, pch = 19, col = "steelblue", main = "cauchy")
grid()
R <- rellipticalCopula(1000, type = "t")
plot(R, pch = 19, col = "steelblue", main = "t-default")
grid()
R <- rellipticalCopula(1000, param = c(nu = 3), type = "t")
plot(R, pch = 19, col = "steelblue", main = "t3")
grid()
R <- rellipticalCopula(1000, param = 3, type = "t")
plot(R, pch = 19, col = "steelblue", main = "t3")
grid()
# The remaining copulae are not yet implemented ...
# Return Value:
return()
}
# ------------------------------------------------------------------------------
test.rellipticalSlider <-
function()
{
# Try Slider:
# rellipticalSlider()
NA
# Return Value:
return()
}
################################################################################
test.pellipticalCopula <-
function()
{
# Arguments ?
# pellipticalCopula(u = 0.5, v = u, rho = 0.75, param = NULL,
# type = ellipticalList(), output = c("vector", "list"), border = TRUE)
# Use Default Settings:
par (mfrow = c(1, 1))
for (type in ellipticalList()) {
UV <- grid2d()
p <- pellipticalCopula(u = UV, rho = 0.75, type = type, output = "list")
print(type)
persp(p, main = type, theta = -40, phi = 30, col = "steelblue",
ps = 9, xlab = "u", ylab = "v", zlab = "C")
}
# Return Value:
return()
}
# ------------------------------------------------------------------------------
test.pellipticalSlider =
function()
{
# Arguments:
# pellipticalSlider(type = c("persp", "contour"), B = 20)
# Try Perspective Slider:
# pellipticalSlider()
NA
# Try Contour Slider:
# pellipticalSlider("contour")
NA
# Return Value:
return()
}
################################################################################
test.dellipticalCopula =
function()
{
# Arguments ?
# dellipticalCopula(u = 0.5, v = u, rho = 0.75, param = NULL,
# type = ellipticalList(), output = c("vector", "list"), border = TRUE)
# Use Default Settings:
par (mfrow = c(1, 1))
for (type in ellipticalList()) {
UV = grid2d()
d = dellipticalCopula(u = UV, rho = 0.75, type = type, output = "list")
print(type)
persp(d, main = type, theta = -40, phi = 30, col = "steelblue",
ps = 9, xlab = "u", ylab = "v", zlab = "c")
}
# Return Value:
return()
}
# ------------------------------------------------------------------------------
test.dellipticalSlider =
function()
{
# Arguments:
# dellipticalSlider(type = c("persp", "contour"), B = 20)
# Try Perspective Slider:
# dellipticalSlider()
NA
# Try Contour Slider:
# dellipticalSlider("contour")
NA
# Return Value:
return()
}
################################################################################
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