Question: cBioPortal Z-score: value difference between download and web Portal
gravatar for faswad
3.2 years ago by
faswad10 wrote:

I am using the cBioPortal R library (cgdsr) to download data from cBioPortal. I am currently focused on the z-score mRNA expression data. For a given sample and gene combination, the z-score that is downloaded does not match the one on the web version of cBioPortal. Could someone shed light on why there is a difference?

Thank you.

cbioportal tcga mrna • 1.3k views
ADD COMMENTlink written 3.2 years ago by faswad10

Are you sure that you are accessing the exact same study in both R and on the cBioPortal website? Some of the TCGA studies are 'provisional' and have different numbers of samples from the published versions.

ADD REPLYlink written 3.2 years ago by Kevin Blighe69k
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