[BioC] iranges

[Valerie Obenchain]

Hi Carol,

The 'end' is the end of the range. When you specify ranges with 'end' 
and 'width' the range will always end at the 'end' value.

 > IRanges(end = 10, width = c(5, 10))
IRanges of length 2
     start end width
[1]     6  10     5
[2]     1  10    10


Similar reasoning for 'start' and 'width':

 > IRanges(start = 10, width = c(5, 10))
IRanges of length 2
     start end width
[1]    10  14     5
[2]    10  19    10


Valerie



On 08/08/2014 01:29 AM, carol white wrote:
> Hi,
> How does width with start and end in IRanges work? I thought that if I use the end with a width, then the sequence from the end with the length of width is taken. However, in my case when I use width for ex 20 and 10, the corresponding sequences with the length 20 and 10 are not the same from the end but from the beginning. Did I misunderstood some thing?
>
> Regards,
>
> Carol
> 	[[alternative HTML version deleted]]
>
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-- 
Valerie Obenchain
Program in Computational Biology
Fred Hutchinson Cancer Research Center
1100 Fairview Ave. N, Seattle, WA 98109

Email: vobencha at fhcrc.org
Phone: (206) 667-3158