Ok Vanessa. Thank you. Diego PS: Anyway, it would be great if that information were available in the table browser...
El día 8 de febrero de 2012 14:41, Vanessa Kirkup Swing <[email protected]> escribió: > Hi Diego, > > The various labs calculate the data and submit it to us. We recommend > that you contact the lab that submitted the data for a more detailed > information on how they calculated it. The lab contact information is > located on the track description pages. > > If you have further questions, please contact the list. > > Vanessa Kirkup Swing > UCSC Genome Bioinformatics Group > > > ---------- Forwarded message ---------- > From: Diego Pereira <[email protected]> > Date: Tue, Feb 7, 2012 at 11:41 AM > Subject: [Genome] Fwd: pValues and Score fields > To: [email protected] > > > Dear Vanessa, > > Thanks for your reply. > Yes I read that in the schema of the table. > > However, by performing the following exercise: > > For a signalValue = 8.01812 > > pValue = -log10(signalValue) > > -LOG10(8.01812) =-0.904072552 > > pValue = -0.904072552 > > which is different than the reported pValue. > > pValue=15.4 > > Excuse me if I'm doing the math in the wrong way. > If so, how should I do the math? > > On the other hand please let me know if the score fields are useful > for statistical analysis. > > Regards, > Diego > > > El día 7 de febrero de 2012 14:18, Vanessa Kirkup Swing > <[email protected]> escribió: >> Hi Diego, >> >> The reason you are seeing high numbers for the pValue is because we >> use -log10. More information about ENCODE file formats can be found >> here: >> >> http://genome.ucsc.edu/FAQ/FAQformat.html >> >> and additional information can be found by clicking on the "schema" >> links for each track in the track description pages. >> >> Hope that clarifies the issue for you. If you have further questions, >> please email the list: [email protected]. >> >> Vanessa Kirkup Swing >> UCSC Genome Bioinformatics Group >> >> >> ---------- Forwarded message ---------- >> From: Diego Pereira <[email protected]> >> Date: Tue, Feb 7, 2012 at 5:46 AM >> Subject: [Genome] pValues and Score fields >> To: [email protected] >> >> >> Good morning, >> I'm wondering, what is the meaning of those pValues of 3100, 324 etc? >> How do they are calculated? >> I never saw something like that before. >> I usually think about pValues as quantities in the range from 0 to 1. >> So those values confuse me a little bit. >> On the other hand, how useful are your score fields for statistical purposes? >> I understand the primary use of those fields is for the graphics. >> However, it seems they are "normalized" data, so I'm wondering whether >> I can use them saving me to reinvent the wheel. >> Regards, >> Diego >> _______________________________________________ >> Genome maillist - [email protected] >> https://lists.soe.ucsc.edu/mailman/listinfo/genome > > _______________________________________________ > Genome maillist - [email protected] > https://lists.soe.ucsc.edu/mailman/listinfo/genome _______________________________________________ Genome maillist - [email protected] https://lists.soe.ucsc.edu/mailman/listinfo/genome
