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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
# Copyrights (C)
# for this R-port:
# 1999 - 2004, Diethelm Wuertz, GPL
# Diethelm Wuertz <wuertz@itp.phys.ethz.ch>
# info@rmetrics.org
# www.rmetrics.org
# for the code accessed (or partly included) from other R-ports:
# see R's copyright and license files
# for the code accessed (or partly included) from contributed R-ports
# and other sources
# see Rmetrics's copyright file
################################################################################
# FUNCTION: DESCRIPTION:
# myFinCenter My financial Center
# currentYear Date of the Current Year
# myUnits Date Units
# xmpBasics Sets prompt
# xmpfBasics Popups the example menu
# FUNCTION: DESCRIPTION:
# modify Modify a 'timeSeries' object
# modify.default S3 Default Method
# atoms Extract atoms from 'timeSeries' object
# atoms.default S3 Default Method
################################################################################
# Requires:
require(methods)
# Default Parameters:
myFinCenter = "Zurich"
currentYear = as.POSIXlt(Sys.time())$year + 1900
myUnits = "days"
# Set a timezone if none found in environment variables or options()
# ... as suggested by Dirk Eddelbuettel, thanks Dirk.
if (Sys.getenv("TZ") == "") {
if (is.null(getOption("TZ"))) {
cat("No timezone information found, using default of GMT\n")
Sys.putenv("TZ" = "GMT") }
else {
cat("No timezone information found, applying option() value of",
getOption("TZ"), "\n")
Sys.putenv("TZ" = getOption("TZ")) } }
# ------------------------------------------------------------------------------
xmpBasics =
function(prompt = "")
{
invisible(prompt)
}
# ------------------------------------------------------------------------------
xmpfBasics =
function()
{ # A function implemented by Diethelm WUertz
# Description:
# Popups the example menu
# FUNCTION:
# Popup:
path = paste(.Library,"/fBasics", sep = "")
entries = .read.fBasics.00Index (file.path(path, "demoIndex"))
example = select.list(entries[,1])
selected = 0
for (i in 1:length(entries[,1])) {
if (example == entries[i,1]) selected = i
}
if (example == "") {
cat("\nNo demo selected\n")
} else {
cat("\nLibrary: ", "fBasics", "\nExample: ",
entries[selected, 1], "\nTitle: ", entries[selected, 2], "\n")
source(paste(path, "/demo/", example, ".R", sep = ""))
}
if (TRUE) {
cat("\n")
}
# Return Value:
invisible()
}
# ------------------------------------------------------------------------------
.read.fBasics.00Index =
function (file)
{
if (is.character(file)) {
if (file == "") {
file <- stdin()
} else {
file <- file(file, "r")
on.exit(close(file))
}
}
if (!inherits(file, "connection"))
stop(paste("argument",
sQuote("file"), "must be a character string or connection"))
y <- matrix("", nr = 0, nc = 2)
x <- paste(readLines(file), collapse = "\n")
for (chunk in unlist(strsplit(x, "\n[ \n]*\n"))) {
entries <- try({
if (regexpr("( | )", chunk) == -1)
NULL
else {
chunk <- gsub("\n[ ]+", " ", chunk)
x <- strsplit(unlist(strsplit(chunk, "\n")), "[ ]")
cbind(unlist(lapply(x, "[[", 1)), unlist(lapply(x,
function(t) {
paste(t[-c(1, which(nchar(t) == 0))], collapse = " ")
})))
}
})
if (!inherits(entries, "try-error") && NCOL(entries) == 2)
y <- rbind(y, entries)
}
colnames(y) <- c("Item", "Description")
y
}
# ******************************************************************************
# R - Modifications and Problems:
modify =
function(x, method, units)
{
UseMethod("modify")
}
# ------------------------------------------------------------------------------
modify.default =
function(x, method = c("sort", "round", "trunc"), units = NULL )
{
# Modify:
ans = NA
if (method[1] == "sort") return(sort(x))
if (method[1] == "round") return(round(x))
if (method[1] == "trunc") return(trunc(x))
# Return Value:
ans
}
# ------------------------------------------------------------------------------
atoms =
function(x, ...)
{
UseMethod("atoms")
}
# ------------------------------------------------------------------------------
atoms.default =
function(x, ...)
{
invisible(x)
}
# ------------------------------------------------------------------------------
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