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################################################################################
# igeom - IDF Visualization Function for Geometric Distribution
# ------------------------------------------------------------------------------
# The igeom R function visualizes the geometric idf evaluated at a provided
# uniform(0,1) u. This will graph the idf in action (via dashed lines back across
# the cdf). Note that the u argument can be a scalar or vector. If a vector,
# multiple dashed lines will be displayed, and the return type will be a vector.
# The function also gives the option of displaying a histogram of the variates
# generated, with theoretical geometric distribution superimposed.
# ------------------------------------------------------------------------------
#' @templateVar distro Geometric
#' @templateVar distrolc geometric
#' @templateVar ifunct igeom
#' @templateVar funct geom
#' @templateVar PXF PMF
#' @templateVar massDen mass
#' @templateVar arglong prob = 0.25
#' @templateVar argshort 0.4
#' @templateVar minPQ 0
#' @templateVar maxPQ 0.95
#'
#' @template i-disc
#' @template -geom
#' @template i-2
#' @export
################################################################################
igeom <- function(u = runif(1), prob,
minPlotQuantile = 0,
maxPlotQuantile = 0.95,
plot = TRUE,
showCDF = TRUE,
showPMF = TRUE,
showECDF = TRUE,
show = NULL,
maxInvPlotted = 50,
plotDelay = 0,
sampleColor = "red3",
populationColor = "grey",
showTitle = TRUE,
respectLayout = FALSE,
restorePar = TRUE, # add 23 Nov 2023
...)
{
#############################################################################
if(is.null(dev.list())) dev.new(width=5, height=6)
#warnVal <- options("warn") # save current warning setting... (del 22 Nov 2023)
#############################################################################
#options(warn = -1) # suppress warnings -- remove RE CRAN req't (del 22 Nov 2023)
if (!is.null(u) && (min(u) <= 0 || max(u) >= 1)) stop("must have 0 < u < 1")
checkVal(prob, minex = 0, maxex = 1)
checkQuants(minPlotQuantile, maxPlotQuantile, min = 0, maxex = 1)
#options(warn = 1) # set to immediate warnings (del 22 Nov 2023)
# Check for deprecated parameters
for (arg in names(list(...))) {
if (arg == "maxPlotTime") {
# mod 23 Nov 2023
#warning("'maxPlotTime' has been deprecated as of simEd v2.0.0")
warning("'maxPlotTime' has been deprecated as of simEd v2.0.0",
immediate. = TRUE)
}
else stop(paste("Unknown argument '", arg, "'", sep = ""))
}
#############################################################################
# Define getter functions
getDensity <- function(d) dgeom(d, prob) #d
getDistro <- function(d) pgeom(d, prob) #p
getQuantile <- function(d) qgeom(d, prob) #q
# using plotmath for [nothing here]; bquote to use .() to evaluate args;
# in bquote, ~ includes space b/w while * appends w/ no space b/w
titleStr <- as.expression(bquote(bold(
"Geometric (" ~ "p" ~ "=" ~ .(round(prob, 3)) ~ ")"
)))
#############################################################################
out <- PlotDiscrete(
u = u,
minPlotQuantile = minPlotQuantile,
maxPlotQuantile = maxPlotQuantile,
plot = plot,
showCDF = showCDF,
showPMF = showPMF,
showECDF = showECDF,
show = show,
maxInvPlotted = maxInvPlotted,
plotDelay = plotDelay,
sampleColor = sampleColor,
populationColor = populationColor,
showTitle = showTitle,
respectLayout = respectLayout,
restorePar = restorePar, # add 23 Nov 2023
getDensity = getDensity,
getDistro = getDistro,
getQuantile = getQuantile,
hasCDF = !missing(showCDF),
hasPMF = !missing(showPMF),
hasECDF = !missing(showECDF),
titleStr = titleStr
)
# resetting par and warning settings
#options(warn = warnVal$warn) # remove RE CRAN req't (del 22 Nov 2023)
## using on.exit for par RE CRAN suggest (del 22 Nov 2023)
#if (!all(oldpar$mfrow == par()$mfrow)) {
# # ?par claims "restoring all of [oldpar] is not wise", so reset only mfrow
# par(mfrow = oldpar$mfrow)
#}
if (!is.null(out)) return(out)
}
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