comprna / SUPPA

SUPPA: Fast quantification of splicing and differential splicing
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p-value in the output of diffSplice function #108

Closed CS791 closed 4 years ago

CS791 commented 4 years ago

Hi!

What p-value in the output of diffSplice function considers as significant? In my files mostly p-values are 1. On what basis I should consider an event as a differential splicing event, deltaPSI, or p-value?

Thank you! Best regards

CS

EduEyras commented 4 years ago

Hi,

In the empirical models, the p-value reflects the significance of the deltaPSI change in the context of the observed biological variability.

If you make a volcano plot (x axis = deltaPSI, y axis = -log10(p-value) ), this will help you see what reasonable cutoffs you could use with your data.

In this context, you may find low deltaPSI values with low p-values, which are common in highly expressed genes

A common choice is to use a p-value < 0.05, and |deltaPSI| >0.1

E

On Tue, 3 Nov 2020 at 01:49, CS791 notifications@github.com wrote:

Hi!

What p-value in the output of diffSplice function considers as significant? In my files mostly p-values are 1. On what basis I should consider an event as a differential splicing event, deltaPSI, or p-value?

Thank you! Best regards

CS

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CS791 commented 4 years ago

Thank you! This is really helpful.

Best regards

CS