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cBioPortal / icebox

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fix low p-values in comparison KM charts #336

Open tmazor opened 2 years ago

tmazor commented 2 years ago

p-value in KM chart is 0.00 but should be <10^-10 like in the table image

https://www.cbioportal.org/comparison/survival?comparisonId=6138b0cee6ebe01a6ee2de10&unselectedGroups=%5B%22NA%22%5D

aswin2108 commented 2 years ago

@tmazor @onursumer I would like to work on this issue. Can you assign this to me!?

aswin2108 commented 2 years ago

@tmazor I was working on this issue and I noticed its log-rank test value in the chart. The log-rank test is a hypothesis test to compare the survival distributions of two samples. which is calculated by: image So currently the value being displayed in the chart is just the p-value which is the same as the adjacent table, but log-rank test P value is written there in the table! Is this a mistake or did I misinterpret it?