swh:1:snp:d1587d616651317fdcebcbb237dce82c32266449
Tip revision: dfe6577bb164f53feaedf2da9530457197edfb1a authored by Georgi N. Boshnakov on 20 October 2022, 11:25:10 UTC
version 4021.93
version 4021.93
Tip revision: dfe6577
dist-gldMode.R
# 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: DESCRIPTION:
# gldMode Computes the Generalized Lambda Distribution mode
################################################################################
gldMode <-
function(lambda1 = 0, lambda2 = -1, lambda3 = -1/8, lambda4 = -1/8)
{
# A function implemented by Diethelm Wuertz
# Arguments:
# lambda1 - a numeric value, the location parameter
# lambda2 - a numeric value, the scale parameter
# lambda3 - a numeric value, the first shape parameter
# lambda4 - a numeric value, the second parameter
# Description:
# Computes the Generalized Lambda Distribution mode
# FUNCTION:
# Find Maximum:
min = qgld(0.01, lambda1, lambda2, lambda3, lambda4)
max = qgld(0.99, lambda1, lambda2, lambda3, lambda4)
ans = optimize(f = dgld, interval = c(min, max),
lambda1 = lambda1, lambda2 = lambda2,
lambda3 = lambda3, lambda4 = lambda4,
maximum = TRUE, tol = .Machine$double.eps)$maximum
# Return Value:
ans
}
################################################################################