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#
# Copyright 2007-2020 by the individuals mentioned in the source code history
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
##' A character or integer
##' @name MxCharOrNumber-class
setClassUnion("MxCharOrNumber", c("character", "integer"))
##' An optional character
##' @name MxOptionalChar-class
setClassUnion("MxOptionalChar", c("NULL", "character"))
##' An optional data.frame
##' @name MxOptionalDataFrame-class
setClassUnion("MxOptionalDataFrame", c("NULL", "data.frame"))
##' An optional data.frame or matrix
##' @name MxOptionalDataFrameOrMatrix-class
setClassUnion("MxOptionalDataFrameOrMatrix", c("data.frame", "matrix", "NULL"))
##' @title An optional logical
##' @name MxOptionalLogical-class
##' @rdname MxOptionalLogical-class
##' @description This is an internal class, the union of NULL and logical.
setClassUnion("MxOptionalLogical", c("NULL", "logical"))
##' A character, integer, or NULL
##' @name MxOptionalCharOrNumber-class
setClassUnion("MxOptionalCharOrNumber", c("NULL", "character", "integer"))
##' An optional list
##' @name MxListOrNull-class
setClassUnion("MxListOrNull", c("list", "NULL"))
##' A character, list or NULL
##' @name MxCharOrList-class
setClassUnion("MxCharOrList", c("character", "list"))
##' An optional matrix
##' @name MxOptionalMatrix-class
setClassUnion("MxOptionalMatrix", c("NULL", "matrix"))
##' An optional numeric
##' @name MxOptionalNumeric-class
setClassUnion("MxOptionalNumeric", c("NULL", "numeric"))
##' An optional integer
##' @name MxOptionalInteger-class
setClassUnion("MxOptionalInteger", c("NULL", "integer"))
##' A character or logical
##' @name MxCharOrLogical-class
setClassUnion("MxCharOrLogical", c("character", "logical"))
##' A package_version or character
##' @name MxVersionType-class
setOldClass('package_version')
setClassUnion("MxVersionType", c("package_version", "character"))
factorize <- function(x, levels, labels, exclude, collapse) {
x <- as.character(x)
if (length(exclude) && all(!is.na(exclude))) {
overlap <- match(exclude, levels)
if (any(!is.na(overlap))) {
msg <- paste("Factor levels and exclude vector are not disjoint; both contain",
omxQuotes(levels[overlap]))
stop(msg)
}
x[which(!is.na(match(x, exclude)))] <- NA
}
noMatch <- !is.na(x) & is.na(match(x, levels))
if (any(noMatch)) {
msg <- paste("The following values are not mapped to factor levels and not excluded:",
omxQuotes(unique(x[noMatch])))
stop(msg)
}
if (collapse) {
corder <- order(labels)
cLabels <- labels[corder]
cLevels <- levels[corder]
dups <- duplicated(cLabels)
newLevels <- cLevels[!dups]
notDup <- which(!dups)
for (dx in which(dups)) {
from <- cLevels[dx]
to <- newLevels[findInterval(dx, notDup)]
x[x==from] <- to
}
mask <- !duplicated(labels)
levels <- levels[mask]
labels <- labels[mask]
} else {
dups <- duplicated(labels)
if (any(dups)) stop(paste("Duplicate labels and collapse=TRUE not specified:",
omxQuotes(unique(labels[dups]))))
}
f <- factor(x, levels, labels, exclude, ordered=TRUE)
attr(f, 'mxFactor') <- TRUE
f
}
mxFactor <- function(x = character(), levels, labels = levels, exclude = NA, ordered = TRUE, collapse=FALSE) {
if(missing(levels)) {
stop("the 'levels' argument is not optional")
}
if(!identical(ordered, TRUE)) {
stop("the 'ordered' argument must be TRUE")
}
if (is.data.frame(x)) {
if (is.list(levels)) {
return(data.frame(mapply(factorize, x, levels, labels,
MoreArgs=list(exclude = exclude, collapse=collapse), SIMPLIFY=FALSE),
check.names = FALSE, row.names=rownames(x)))
} else {
return(data.frame(lapply(x, factorize, levels, labels, exclude, collapse),
check.names = FALSE, row.names=rownames(x)))
}
} else if (is.matrix(x)) {
stop(paste("argument 'x' to mxFactor()",
"is of illegal type matrix,",
"legal types are vectors or data.frames"))
} else {
return(factorize(x, levels, labels, exclude, collapse))
}
}
prohibitDotdotdot <- function(args) {
if (length(args) == 0) return()
stop(paste0(as.character(sys.call(-1))[1], " does not accept ... arguments. ",
"The first parameter in ... was named ", omxQuotes(names(args)[1]),
" with value '", args[[1]], "'"),
call.=FALSE)
}
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