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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
################################################################################
# GENERATION: DESCRIPTION:
# triang Extracs the lower tridiagonal part from a matrix
# Triang Extracs the upper tridiagonal part from a matrix
################################################################################
triang <-
function(x)
{
# A function implemented by Diethelm Wuertz
# Description:
# Returns lower triangle matrix
# FUNCTION:
# Triangulate:
x[row(x) < col(x)] = 0
# Return Value:
x
}
# ------------------------------------------------------------------------------
Triang <-
function(x)
{
# A function implemented by Diethelm Wuertz
# Description:
# Returns upper triangle matrix
# FUNCTION:
# Triangulate
x[row(x) > col(x)] = 0
# Return Value:
x
}
################################################################################
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