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#' Capitalise first letter in each word in string
#'
#' Copied verbatim from https://stackoverflow.com/a/6364905
#' Also see R doc of base::toupper()
#'
#' @param x string of one or more words
#'
#' @return string
#' @export
simpleCap <- function(x) {
s <- strsplit(x, " ")[[1]]
paste(toupper(substring(s, 1, 1)), substring(s, 2),
sep = "", collapse = " ")
}
#' LoadRData2Variable
#'
#' This function loads R-data file into a variable instead of into the workspace.
#' Works well when the R-data file contains only ONE variable.
#' Not tested for when the R-data file contains more than one variable.
#'
#' @param path local path to rda file (default)
#' @param url remote URL to rda file (note: requires explicitly specifying argument)
#'
#' @return an R object, you will probably want to assign it to a variable
#' @export
#' @examples
#' \dontrun{
#' abscoeff <- LoadRData2Variable("/path/file.rda")
#' abscoeef <- LoadRData2Variable(url="http://public.solarchemist/data/file.rda")
#' }
LoadRData2Variable <- function(path, url = "") {
# BEWARE: this function does **not** check for all possible
# variations in the two args. Someone should really improve on that.
if (url == "") {
return(eval(parse(text = load(path))))
} else {
return(eval(parse(text = load(url(url)))))
}
}
#' Create a string of specified width from an integer
#'
#' Converts an integer or a vector of integers to a string
#' of fixed length padded with a specified character (e.g., zeroes).
#'
#' @param ii integer or vector of integers
#' @param pchr a padding character (e.g., "0")
#' @param w width of the return string (an integer)
## Make sure to set the width longer than or equal to the length of the biggest integer.
## For example, if the integers (ii) are in the range 1 - 100, set w to at least 3.
#'
#' @return a string or a vector of strings
#' @export
int2padstr <- function (ii, pchr, w) {
gsub(" ", pchr, formatC(ii, format = "s", mode = "character", width = w))
}
#' numbers2words
#'
#' Converts a number into its corresponding words in English
#' THIS FUNCTION WAS PUBLISHED IN: R-News, vol 5, iss 1, May 2005, pp. 51
#' Original author: John Fox, Department of Sociology, McMaster University, Hamilton, Ontari
#' Canada L8S 4M4, 905-525-9140x23604
#' http://socserv.mcmaster.ca/jfox
#' http://cran.csiro.au/doc/Rnews/Rnews_2005-1.pdf
#' http://finzi.psych.upenn.edu/R/Rhelp02a/archive/46843.html
#'
#' @param x number
#' @param billion follow either US or UK usage rules
#' @param and follows the choice set in billion arg
#'
#' @return string
#' @export
numbers2words <- function(x, billion = c("US", "UK"), and = if (billion == "US") "" else "and") {
billion <- match.arg(billion)
trim <- function(text) {
gsub("(^\ *)|((\ *|-|,\ zero|-zero)$)", "", text)
}
makeNumber <- function(x) as.numeric(paste(x, collapse = ""))
makeDigits <- function(x) strsplit(as.character(x), "")[[1]]
helper <- function(x) {
negative <- x < 0
x <- abs(x)
digits <- makeDigits(x)
nDigits <- length(digits)
result <- if (nDigits == 1) as.vector(ones[digits])
else if (nDigits == 2)
if (x <= 19) as.vector(teens[digits[2]])
else trim(paste(tens[digits[1]], "-", ones[digits[2]], sep=""))
else if (nDigits == 3) {
tail <- makeNumber(digits[2:3])
if (tail == 0) paste(ones[digits[1]], "hundred")
else trim(paste(ones[digits[1]], trim(paste("hundred", and)),
helper(tail)))
} else {
nSuffix <- ((nDigits + 2) %/% 3) - 1
if (nSuffix > length(suffixes) || nDigits > 15)
stop(paste(x, "is too large!"))
pick <- 1:(nDigits - 3 * nSuffix)
trim(paste(helper(makeNumber(digits[pick])), suffixes[nSuffix], helper(makeNumber(digits[-pick]))))
}
if (billion == "UK") {
words <- strsplit(result, " ")[[1]]
if (length(grep("million,", words)) > 1)
result <- sub(" million, ", ", ", result)
}
if (negative) paste("minus", result) else result
}
opts <- options(scipen = 100)
on.exit(options(opts))
ones <- c("zero", "one", "two", "three", "four", "five", "six", "seven", "eight", "nine")
teens <- c("ten", "eleven", "twelve", "thirteen", "fourteen", "fifteen", "sixteen", "seventeen", "eighteen", "nineteen")
names(ones) <- names(teens) <- 0:9
tens <- c("twenty", "thirty", "forty", "fifty", "sixty", "seventy", "eighty", "ninety")
names(tens) <- 2:9
suffixes <- if (billion == "US") {
c("thousand,", "million,", "billion,", "trillion,")
} else {
c("thousand,", "million,", "thousand million,", "billion,")
}
x <- round(x)
if (length(x) > 1) sapply(x, helper) else helper(x)
}
#' numbers2swedish
#'
#' Converts a number into its corresponding words in Swedish
#' This is my own adaptation of numbers2words()
#' I think an even neater solution would be to have an argument
#' numbers2words(lang = "swe"), but that would require more coding
#' THIS FUNCTION NEEDS WORK
#' Cannot return proper grammar: "en miljon" and "ett tusen", or
#' "en miljon" and "två miljoner", and so on.
#'
#' @param x number
#'
#' @return string
#' @export
numbers2swedish <- function(x) {
and <- ""
trim <- function(text) {
gsub("(^\ *)|((\ *|-|,\ noll|-noll)$)", "", text)
}
makeNumber <- function(x) as.numeric(paste(x, collapse = ""))
makeDigits <- function(x) strsplit(as.character(x), "")[[1]]
helper <- function(x) {
negative <- x < 0
x <- abs(x)
digits <- makeDigits(x)
nDigits <- length(digits)
result <- if (nDigits == 1) as.vector(ones[digits])
else if (nDigits == 2)
if (x <= 19) as.vector(teens[digits[2]])
else trim(paste(tens[digits[1]], "-", ones[digits[2]], sep=""))
else if (nDigits == 3) {
tail <- makeNumber(digits[2:3])
if (tail == 0) paste(ones[digits[1]], "hundra")
else trim(paste(ones[digits[1]], trim(paste("hundra", and)),
helper(tail)))
} else {
nSuffix <- ((nDigits + 2) %/% 3) - 1
if (nSuffix > length(suffixes) || nDigits > 15)
stop(paste(x, "is too large!"))
pick <- 1:(nDigits - 3 * nSuffix)
trim(paste(helper(makeNumber(digits[pick])), suffixes[nSuffix], helper(makeNumber(digits[-pick]))))
}
if (negative) paste("minus", result) else result
}
opts <- options(scipen = 100)
on.exit(options(opts))
ones <- c("noll", "ett", "tv\U00E5", "tre", "fyra", "fem", "sex", "sju", "\U00E5tta", "nio")
teens <- c("tio", "elva", "tolv", "tretton", "fjorton", "femton", "sexton", "sjutton", "arton", "nitton")
names(ones) <- names(teens) <- 0:9
tens <- c("tjugo", "trettio", "fyrtio", "femtio", "sextio", "sjuttio", "\U00E5ttio", "nittio")
names(tens) <- 2:9
# https://sv.wikipedia.org/wiki/Namn_p%C3%A5_stora_tal
suffixes <- c("tusen,", "miljoner,", "miljarder,", "biljoner,")
x <- round(x)
if (length(x) > 1) sapply(x, helper) else helper(x)
}