#############################################################################
# Copyright (c) 2018 Christophe Dutang
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the
# Free Software Foundation, Inc.,
# 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA
#
#############################################################################
###
### test argument functions
###
#non exported functions
# fractional argument
#see page 74 of Actuarial Mathematics
testfractionnalarg <- function(x)
{
x <- match.arg(x, c("linear", "uniform", "hyperbolic", "constant force", "exponential", "harmonic", "Balducci"))
if(x == "uniform")
x <- "linear"
if(x == "exponential")
x <- "constant force"
if(x %in% c("harmonic", "Balducci"))
x <- "hyperbolic"
x
}
#multiple-life status
teststatusarg <- function(x)
{
x <- match.arg(x, c("last", "joint", "Joint-Life", "Last-Survivor"))
if(x == "Joint-Life")
x <- "joint"
if(x == "Last-Survivor")
x <- "last"
x
}
#random life type variable
testtypelifearg <- function(x)
{
x <- match.arg(x, c("Tx", "Kx", "continuous", "curtate", "complete"))
if(x %in% c("continuous", "complete"))
x <- "Tx"
if(x == "curtate")
x <- "Kx"
x
}
#output type
testtyperesarg <- function(x)
{
x <- match.arg(x, c("EV", "ST", "expected", "stochastic"))
if(x == "expected")
x <- "EV"
if(x == "stochastic")
x <- "ST"
x
}
#payment argument for annuities
testpaymentarg <- function(x)
{
x <- match.arg(x, c("advance", "due", "immediate", "arrears"))
if(x == "advance")
x <- "due"
if(x == "arrears")
x <- "immediate"
x
}
#life computation type
testlifecontarg <- function(x)
{
x <- match.arg(x, c("Axn", "axn", "Exn", "IAxn", "DAxn", "AExn"))
x
}
testlifecontarg2 <- function(x)
{
x <- match.arg(x, c("Axyz", "axyz"))
x
}
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