From ripley@stats.ox.ac.uk  Tue Jul  2 10:18:18 2002
From: ripley@stats.ox.ac.uk (ripley@stats.ox.ac.uk)
Date: Tue, 2 Jul 2002 10:18:18 +0100 (BST)
Subject: problem with qq( ) (PR#1729)
In-Reply-To: <200207020837.KAA28253@pubhealth.ku.dk>
Message-ID: <Pine.LNX.4.31.0207021005500.25466-100000@gannet.stats>

1) This is a report on the lattice package, and we both need you to
mention that and to give the version number of lattice that you used
to be sure of beeing able to reproduce this.

2) It seems that the plots are actually correct, just the labels are
wrong. You can correct that by specifying xlab and ylab in the call.

3) The error appears to be a typo:

    if (missing(ylab))
        ylab <- if (is.f.y)
            unique(levels(y))[y]
        else paste("y:", as.character(unique(levels(y)[[2]])))

should be [2] for consistency.

On Tue, 2 Jul 2002 Jarno.Tuimala@Helsinki.Fi wrote:

> Full_Name: Jarno Tuimala
> Version: 1.5.0
> OS: Windows Nt
> Submission from: (NULL) (193.166.1.21)
>
>
> Running the following analysis gives as a result kukot vs. kisut.
>
> aikaero <- -27.5+5*(0:10)
> frekvenssi.m <- c(0,1,15,37,53,45,23,18,4,1,1)
> frekvenssi.n <- c(2,8,12,19,33,47,42,15,2,1,0)
> win.graph()
> aikaero <- rep(c(aikaero,aikaero), c(frekvenssi.m,frekvenssi.n))
>  a.ero <- data.frame(aikaero,
>             sukupuoli=rep(c("kukot","kisut"),
>                           c(sum(frekvenssi.m),sum(frekvenssi.n))))
>     qq(sukupuoli ~ aikaero, data=a.ero)
>
> However, running the following analysis, gives miehet vs. miehet.
>
>  aikaero <- -27.5+5*(0:10)
>  frekvenssi.m <- c(0,1,15,37,53,45,23,18,4,1,1)
>  frekvenssi.n <- c(2,8,12,19,33,47,42,15,2,1,0)
>  win.graph()
>  aikaero <- rep(c(aikaero,aikaero), c(frekvenssi.m,frekvenssi.n))
>  a.ero <- data.frame(aikaero,
>         sukupuoli=rep(c("miehet","naiset"),
>                       c(sum(frekvenssi.m),sum(frekvenssi.n))))
>      qq(sukupuoli ~ aikaero, data=a.ero)
>
> This seems to happen everytime "sukupuoli" contains one variable name, which
> starts with a letter "n". If both names start with "n" or other letters the
> results is miehet vs naiset as expected.
>
> So this works fine:
>
> a.ero <- data.frame(aikaero,
>         sukupuoli=rep(c("nisset","naiset"),
>                       c(sum(frekvenssi.m),sum(frekvenssi.n))))
>      qq(sukupuoli ~ aikaero, data=a.ero)
>
> And this also:
>
> a.ero <- data.frame(aikaero,
>         sukupuoli=rep(c("miehet","maiset"),
>                       c(sum(frekvenssi.m),sum(frekvenssi.n))))
>      qq(sukupuoli ~ aikaero, data=a.ero)
>
> Where's the problem?
>
>
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-- 
Brian D. Ripley,                  ripley@stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272860 (secr)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

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problem with qq( ) (PR#1729)
ripley@stats.ox.ac.uk