[Bioc-sig-seq] Solexa quality to numeric conversion

Martin Morgan mtmorgan at fhcrc.org
Tue Jan 13 16:40:44 CET 2009


"James W. MacDonald" <jmacdon at med.umich.edu> writes:

> Is there a method to convert the Solexa quality values in a ShortReadQ
> object to numeric?

> exammple(readFastq)
[snip]
> rfq
class: ShortReadQ
length: 256 reads; width: 36 cycles
> dim(as(quality(rfq), "matrix"))
[1] 256  36
> typeof(as(quality(rfq), "matrix"))
[1] "integer"

Martin

> Best,
>
> Jim
>
>
> -- 
> James W. MacDonald, M.S.
> Biostatistician
> Hildebrandt Lab
> 8220D MSRB III
> 1150 W. Medical Center Drive
> Ann Arbor MI 48109-5646
> 734-936-8662
>
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-- 
Martin Morgan
Computational Biology / Fred Hutchinson Cancer Research Center
1100 Fairview Ave. N.
PO Box 19024 Seattle, WA 98109

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Phone: (206) 667-2793



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