Segment out of the Graph

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I tried setting ylim=(0, 1000)
but the segment that I have draw is at y=-10
so if I set the y origin to 0 I don t have the segment,
if a l leave it at -10 I have the segment but the axis start from  
-10.

I would like to have both.
So to have a graph with ylim=( 0, 1000)
and under it a segment parallel to the x axis at  -10.
If you really want that then you will need to look at the xpd  
parameter for par.
I am sorry it is contorted thing :)

Claudio
If instead you want to plot at y= -10 without changing xpd, then set  
axes=FALSE in the plot command and then construct your x and y axes  
separately to your specifications. Any more specific comments will  
require that you present code (as well as a better description)  that  
constructs an example.
David.
>>
>>
>> 2011/8/25 R. Michael Weylandt <michael.weylandt at gmail.com>
>>
>>> "lim" is not the argument: "ylim" is.
>>>
>>> You put in a vector of length 2 comprising the min and max y you  
>>> wish:
>>> consider this:
>>>
>>> x = -5:5; y = x^2; z = rep(-5,11);
>>> layout(1:2)
>>> plot(x,y,type="b"); lines(x,z,col=2)
>>> plot(x,y,ylim = c(-8,max(y)+3),type="b"); lines(x,z,col=2)
>>>
>>> For your work, you'd need ylim = c(0, 1.03*max(y))  or something  
>>> similar.
>>>
>>> Michael Weylandt
>>>
>>>
>>> On Thu, Aug 25, 2011 at 1:12 PM, Claudio Zanettini <
>>> claudio.zanettini at gmail.com> wrote:
>>>
>>>> Yes I tried but if I set the lim to 0 then it will not displayed  
>>>> the line
>>>> that is at -10, right?
>>>>
>>>> 2011/8/25 R. Michael Weylandt <michael.weylandt at gmail.com>
>>>>
>>>> Look at ylim, as an optional argument to plot.
>>>>>
>>>>> Michael
>>>>>
>>>>> On Thu, Aug 25, 2011 at 1:07 PM, Claudio Zanettini <
>>>>> claudio.zanettini at gmail.com> wrote:
>>>>>
>>>>>> Hello everyone,
>>>>>> I have a graph  and a segment parallel to the x axis  at y=-10,  
>>>>>> x=0,
>>>>>> and
>>>>>> bars on it.
>>>>>> Now the question is,
>>>>>> Is there a way to leave the segment there but let the graph  
>>>>>> axis start
>>>>>> from
>>>>>> the origin?
>>>>>> In this way the segment will be out of the graph
>>>>>>
>>>>>>
>>>>>> Thanks
>>>>>>
>>>>>>       [[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.
>>>>>>
>>>>>
>>>>>
>>>>
>>>
>>
>
> 	[[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.

David Winsemius, MD
West Hartford, CT