[Rd] plot.TukeyHSD prints funny main titles

From: Joris Meys <jorismeys_at_gmail.com>
Date: Mon, 05 Mar 2012 09:17:44 +0100


if you use the plot.TukeyHSD() function with a main argument, that one is printed over the default title 'X% family-wise confidence level'. Try for example:

Model <- aov(count~spray,data=InsectSprays) plot(TukeyHSD(Model),main='HHHHH',las=2)

This doesn't happen with an xlab or ylab argument, as they give errors due to the fact they're specified inside the function already:

function (x, ...)

    for (i in seq_along(x)) {


        plot(c(xi[, "lwr"], xi[, "upr"]), rep.int(yvals, 2),
            type = "n", axes = FALSE, xlab = "", ylab = "", ...)



The main title and the xlab are created with the title() function lower in the code. So to avoid a main title being specified twice, I propose to add main="" to the plot statement quoted above.


Joris Meys
Statistical consultant

Ghent University
Faculty of Bioscience Engineering
Department of Mathematical Modelling, Statistics and Bio-Informatics

tel : +32 9 264 59 87
Disclaimer : http://helpdesk.ugent.be/e-maildisclaimer.php

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