From radiosity at gmail.com  Fri Jun 27 16:32:09 2008
From: radiosity at gmail.com (Richard Martin)
Date: Fri, 27 Jun 2008 15:32:09 +0100
Subject: [Rd] plot(type="l") disjoint between 100 and 101st datapoint
In-Reply-To: <1A68FCB28DE72F4BA3B967E6506CCE430304956D@mildnpexmb01.maninvestments.ad.man.com>
References: <eea558470806270329s40e512f1vba68a4ac3938231e@mail.gmail.com>
	<eea558470806270438h4c9e7242v274d84c4b872c36a@mail.gmail.com>
	<1A68FCB28DE72F4BA3B967E6506CCE430304956D@mildnpexmb01.maninvestments.ad.man.com>
Message-ID: <eea558470806270732w58bb03d1j7be34f58aeb447a6@mail.gmail.com>

Hi Dr Sklyar,

This is interesting to know - I have just noticed that it also happens
every 100 points, there is another disjoint between 200 and 201. I
have attached a file showing this.

The file was created using the following code:

> png("disjoint2.png")
> plot(1:210, type="l")
> dev.off()

Regards,

Richard



2008/6/27 Sklyar, Oleg (MI London) <osklyar at maninvestments.com>:
> I do not see any disjoint on 2.7.0 patched (r45879) or 2.8.0 devel
> (r45830) on RHEL5 64bit.
>
> Dr Oleg Sklyar
> Technology Group
> Man Investments Ltd
> +44 (0)20 7144 3803
> osklyar at maninvestments.com
>
>> -----Original Message-----
>> From: r-devel-bounces at r-project.org
>> [mailto:r-devel-bounces at r-project.org] On Behalf Of Richard Martin
>> Sent: 27 June 2008 12:38
>> To: r-devel at r-project.org
>> Subject: [Rd] plot(type="l") disjoint between 100 and 101st datapoint
>>
>> Dear All:
>>
>> We have been experiencing networking issues so I don't know
>> if this got through; I can't see it in the archive.  My
>> sincere apologies if this appears twice.
>>
>> I may have found an unusual bug and am posting here to see if
>> anyone can reproduce it on their system. First of all, sessionInfo():
>>
>> > sessionInfo()
>> R version 2.7.1 (2008-06-23)
>> i386-apple-darwin8.10.1
>>
>> locale:
>> en_GB.UTF-8/en_GB.UTF-8/C/C/en_GB.UTF-8/en_GB.UTF-8
>>
>> attached base packages:
>> [1] stats     graphics  grDevices utils     datasets  methods   base
>>
>> The bug is in the plot() command; it does not draw the line
>> between the 100th and 101st point in a dataset when plotting
>> in line mode (type="l").
>>
>> plot(1:102, type="l") reproduces the problem consistently on
>> my machine, on both png and quartz devices. The result of
>> saving this to the png device by the code below can be seen
>> at http://imagebin.ca/view/txKBk2M.html
>>
>> > png(filename="disjoint.png")
>> > plot(1:102, type="l")
>> > dev.off()
>> quartz
>>     2
>>
>> I had a look through the archives but couldn't see any
>> discussion of this; apologies if I missed it. Is this purely
>> a mac issue?
>> Unfortunately I don't have any other machines to test it on.
>>
>> Kind regards,
>>
>> Richard Martin
>>
>>
>>
>>
>> --
>> Contendere, Explorare, Invenire, et non Cedere
>>
>>
>>
>> --
>> Contendere, Explorare, Invenire, et non Cedere
>>
>> ______________________________________________
>> R-devel at r-project.org mailing list
>> https://stat.ethz.ch/mailman/listinfo/r-devel
>>
>
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-- 
Contendere, Explorare, Invenire, et non Cedere
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[Rd] plot(type="l") disjoint between 100 and 101st datapoint
Richard Martin