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108 lines
4.2 KiB
R
108 lines
4.2 KiB
R
8 years ago
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#' Set the attributes for a generic xtable object
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#'
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#' This function helps you to set the attributes for an xtable
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#' object. It returns an xtable object.
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#'
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#' @param xtobject the xtable (table)
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#' @param nxtnames vector of names (column names)
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#' @param nxtdigits vector of digits (0 if column is non-numeric, numeric of desired number of digits otherwise)
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#' @param nxtdisplay vector of display format [see formatC(format=...)]
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#' @param nxtalign vector of LaTeX align (e.g., "l", "c", "r", "S[table-format=1.1]", ...)
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#' @param caption.text string for the LaTeX caption text
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#' @param caption.label string for the LaTeX reference label
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#'
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#' @details
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#' Sets names, digits, display, and align for the passed xtable object
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#'
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#' @return xtable object
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#' @export
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#'
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#' @examples
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#' \dontrun{
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#' xtabWithAttributes <- GenericXtableSetAttributes(xtobject)
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#' xtabWithAttributes <- GenericXtableSetAttributes(xtobject, nxtdigits = c(0, 2, 2, 4))
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#' }
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GenericXtableSetAttributes <- function(xtobject,
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nxtnames = NULL,
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nxtdigits = NULL,
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nxtdisplay = NULL,
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nxtalign = NULL,
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caption.text = "nxtcaption",
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caption.label = "tab:nxtlabel") {
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# remember to put all names inside "{}" if you use siunitx
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if (!is.null(nxtnames)) {names(xtobject) <- nxtnames}
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# the prepended column due to "row.names"
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if (!is.null(nxtdigits)) {xtable::digits(xtobject) <- c(0, nxtdigits)}
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if (!is.null(nxtdisplay)) {xtable::display(xtobject) <- c("s", nxtdisplay)}
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if (!is.null(nxtalign)) {xtable::align(xtobject) <- c("l", nxtalign)}
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xtable::caption(xtobject) <- caption.text
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xtable::label(xtobject) <- caption.label
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#
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return (xtobject)
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}
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#' Set xtable header in LaTeX longtable format
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#'
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#' This function creates a longtable header assuming
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#' that the LaTeX document will use the booktabs package.
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#' This function should not be used together with \code{booktabs = TRUE}
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#'
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#' @param xtobject xtable object (table)
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#' @param caption.text string for the LaTeX caption text
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#' @param caption.label string for the LaTeX reference label
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#'
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#' @return character string (with LaTeX escaping)
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#' @export
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LongtableXtableHeader <- function(xtobject, caption.text, caption.label) {
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ltxt.header <-
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paste(paste("\\caption{", caption.text, "}", sep = "", collapse = ""),
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paste("\\label{", caption.label, "}\\\\ ", sep = "", collapse = ""),
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"\\toprule ",
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attr(xtobject, "names")[1],
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paste(" &", attr(xtobject, "names")[2:length(attr(xtobject, "names"))], collapse = ""),
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"\\\\\\midrule ",
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"\\endfirsthead ",
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paste("\\multicolumn{",
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ncol(xtobject),
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"}{c}{{\\tablename\\ \\thetable{} -- continued from previous page}}\\\\ ",
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sep = ""),
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"\\toprule ",
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attr(xtobject, "names")[1],
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paste("&", attr(xtobject, "names")[2:length(attr(xtobject, "names"))], collapse = ""),
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"\\\\\\midrule ",
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"\\endhead ",
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"\\midrule ",
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paste("\\multicolumn{",
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as.character(ncol(xtobject)),
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"}{r}{{Continued on next page}}\\\\ ",
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sep = "", collapse = ""),
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"\\bottomrule \\endfoot ",
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"\\bottomrule \\endlastfoot ",
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collapse = "")
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return(ltxt.header)
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}
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#' Set xtable header in LaTeX tabular format
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#'
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#' This function should be used together with \code{booktabs = TRUE}.
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#'
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#' @param xtobject xtable object (table)
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#' @param names.custom Use \code{names.custom} to make more complicated headers, e.g., multiple-row
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#'
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#' @return character string (with LaTeX escaping)
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#' @export
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TabularXtableHeader <- function(xtobject, names.custom = NULL) {
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if (is.null(names.custom)) {
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txt.header <-
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paste(attr(xtobject, "names")[1],
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paste(" &", attr(xtobject, "names")[2:length(attr(xtobject, "names"))], collapse = ""),
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"\\\\\n")
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} else {
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txt.header <- names.custom
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}
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return(txt.header)
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}
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