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Thank you,
Uwe Ligges
Andreas Plank wrote:
> Dear developers from package plotrix,
>
> the function triax.points() from package plotrix does not draw any
> points, because of internal setting in triax.points() {points(...,
> type="l")}.
> I add a new option in triax.points()
> point.type = "l",
> So the user can choose which type of points should be drawn.
> May be other users already found this defect.
>
> best whishes
> Andreas Plank
>
> ####--- 8< ----#######
> triax.points <- function (x,
> show.legend = FALSE,
> label.points = FALSE,
> point.labels = NULL,
> col.symbols = par("fg"),
> pch = par("pch"),
> bg.symbols = par("bg"),
> cc.axes = FALSE,
> point.type = "l", # new add
> ...
> )
> {
> if (dev.cur() == 1)
> stop("Cannot add points unless the triax.frame has been drawn")
> if (missing(x))
> stop("Usage: triax.points(x,...)\n\twhere x is a 3 column array
> of proportions or percentages")
> if (!is.matrix(x) && !is.data.frame(x))
> stop("x must be a matrix or data frame with at least 3 columns
> and one row.")
> if (any(x > 1) || any(x < 0)) {
> if (any(x < 0))
> stop("All proportions must be between zero and one.")
> if (any(x > 100))
> stop("All percentages must be between zero and 100.")
> x <- x/100
> }
> if (any(abs(rowSums(x) - 1) > 0.01))
> warning("At least one set of proportions does not equal one.")
> sin60 <- sin(pi/3)
> if (cc.axes) {
> ypos <- x[, 3] * sin60
> xpos <- x[, 1] + x[, 3] * 0.5
> }
> else {
> ypos <- x[, 3] * sin60
> xpos <- 1 - (x[, 1] + x[, 3] * 0.5)
> }
> nobs <- dim(x)[1]
> if (is.null(point.labels))
> point.labels <- rownames(x)
> if (label.points)
> thigmophobe.labels(xpos, ypos, point.labels)
> if (show.legend) {
> legend(0.16 - 0.02 * max(nchar(point.labels)), 0.75 +
> 0.04 * length(point.labels), legend = point.labels,
> pch = pch, col = col.symbols)
> }
> points(x = xpos, y = ypos, pch = pch, col = col.symbols,
> bg = bg.symbols, type = point.type, ...)
> invisible(list(x = xpos, y = ypos))
> }
>
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