From ligges at statistik.tu-dortmund.de  Mon Jul 18 13:46:58 2011
From: ligges at statistik.tu-dortmund.de (Uwe Ligges)
Date: Mon, 18 Jul 2011 13:46:58 +0200
Subject: [Rd] image adds lines
In-Reply-To: <CANtt_hx3JXKpFr-FaSapZm7ht3F6KLGqayVKVeD9gMpU2MiqtQ@mail.gmail.com>
References: <CANtt_hx3JXKpFr-FaSapZm7ht3F6KLGqayVKVeD9gMpU2MiqtQ@mail.gmail.com>
Message-ID: <4E241D32.2010906@statistik.tu-dortmund.de>

Yes, thanks. I think I know where this is coming from and will discuss 
with Duncan Murdoch who was working on this topic recently.

Best,
Uwe







On 13.07.2011 20:06, Robert J. Hijmans wrote:
> There seems to be a bug in "image" in R 13.1 (on windows 32&  64 bits) and
> on R-devel that is not present in R 13.0 and before.
>
> The below creates a plot with many white lines, horizontal and vertical,
> more or less regularly spaced. The effect is particularly dramatic when the
> plotting window is made very small.
>
> image(t(volcano)[ncol(volcano):1,])
>
> Robert Hijmans
> University of California, Davis
>
>
>> sessionInfo()
> R version 2.13.1 (2011-07-08)
> Platform: x86_64-pc-mingw32/x64 (64-bit)
>
> locale:
> [1] LC_COLLATE=English_United States.1252
> [2] LC_CTYPE=English_United States.1252
> [3] LC_MONETARY=English_United States.1252
> [4] LC_NUMERIC=C
> [5] LC_TIME=English_United States.1252
>
> attached base packages:
> [1] stats     graphics  grDevices utils     datasets  methods   base
>>
>
> 	[[alternative HTML version deleted]]
>
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[Rd] image adds lines
Uwe Ligges