[R] error message; ylim + log="y"

[Ravi Varadhan]

It can plot log axis from 1 to 10, but that is not what you are plotting.
Your ylim includes 0, and you cannot do log(0).  

This will draw the plotting frame that you want:

plot(c(),c(), xlim=c(1,10), ylim=c(1,10), log="y")

Ravi.

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Ravi Varadhan, Ph.D.

Assistant Professor, The Center on Aging and Health

Division of Geriatric Medicine and Gerontology 

Johns Hopkins University

Ph: (410) 502-2619

Fax: (410) 614-9625

Email: rvaradhan at jhmi.edu

Webpage:
http://www.jhsph.edu/agingandhealth/People/Faculty_personal_pages/Varadhan.h
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-----Original Message-----
From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org] On
Behalf Of Martin Batholdy
Sent: Wednesday, November 18, 2009 5:32 PM
To: r help
Subject: Re: [R] error message; ylim + log="y"

> You have no data to plot.  What were you expecting it to do?


Well, I get the same error messages when I use real data.
So it has to do with the ylim-values specified.
When I get rid of the ylim argument definition it does work.


But why?
I don't understand why R can't plot a logarithmic y-axis from 1 to 10.000.
It doesn't need data for that, does it?




Am 18.11.2009 um 23:19 schrieb jim holtman:

> like this?
> 
>> plot(c(),c(), xlim=c(1,10), ylim=c(0,10000), log="y")
> Error in axis(side = side, at = at, labels = labels, ...) :
>  CreateAtVector [log-axis()]: axp[0] = 0 < 0!
> In addition: Warning messages:
> 1: In is.na(y) : is.na() applied to non-(list or vector) of type 'NULL'
> 2: In plot.window(...) :
>  nonfinite axis limits [GScale(-inf,4,2, .); log=1]
> 3: In axis(side = side, at = at, labels = labels, ...) :
>  CreateAtVector "log"(from axis()): axp[0] = 0 !
> 
> 
> You have no data to plot.  What were you expecting it to do?  When you
> say "lot of error messages", please include them and also follow the
> posting guide.
> 
> On Wed, Nov 18, 2009 at 4:52 PM, Martin Batholdy
> <batholdy at googlemail.com> wrote:
>> Hi,
>> 
>> 
>> I get a lot of error messages with this command, but I don't understand
why;
>> 
>> plot(c(),c(), xlim=c(1,10), ylim=c(0,10000), log="y")
>> 
>> 
>> thanks for any help!
>>        [[alternative HTML version deleted]]
>> 
>> ______________________________________________
>> R-help at r-project.org mailing list
>> https://stat.ethz.ch/mailman/listinfo/r-help
>> PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
>> and provide commented, minimal, self-contained, reproducible code.
>> 
> 
> 
> 
> -- 
> Jim Holtman
> Cincinnati, OH
> +1 513 646 9390
> 
> What is the problem that you are trying to solve?

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