Phred Quality Scores

From Bridges Lab Protocols

Revision as of 17:25, 12 June 2012 by Davebridges (Talk | contribs) (copied from wikipedia)

(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)

Jump to: navigation, search

From Wikipedia: http://en.wikipedia.org/wiki/Phred_quality_score

Phred Score Translation

Phred quality scores are logarithmically linked to error probabilities
Phred Quality Score	Probability of incorrect base call	Base call accuracy
10	1 in 10	90 %
20	1 in 100	99 %
30	1 in 1000	99.9 %
40	1 in 10000	99.99 %
50	1 in 100000	99.999 %

Retrieved from "http://bridgeslab.sph.umich.edu/protocols/index.php?title=Phred_Quality_Scores&oldid=661"