FDR > 1 should not be possible

[iblacksand]

From Google Group Post (https://groups.google.com/g/webgestalt/c/fynNrb4RMlQ):

Hi!

Today I have tried to use the webgestaltpy 0.3.1 for GSEA, and I was surprised to see that the reported FDR values exceed 1. What is going on there, is his expected? Should I do the adjustment myself?

I checked the github, and even in the script comments(https://github.com/bzhanglab/webgestaltpy/blob/master/src/lib.rs) example the FDR exceeds 1. I paste the script comment example below:

/// # Example
///
/// ```python
/// import webgestaltpy
///
/// res = webgestaltpy.gsea("kegg.gmt", "example_ranked_list.rnk")
///
/// print(res[0:2]) # print first two results
/// ```
///
/// **Output**
///
/// ```
/// [
///   {
///     'set': 'has00010',
///     'p': 0.353,
///     'fdr': 1.276048474073356,
///     'es': 0.40653028852961814,
///     'nes': 1.07659486501464,
///     'leading_edge': 24
///   },
///   {
///     'set': 'has00020',
///     'p': 0,
///     'fdr': 0.028834551777982824,
///     'es': 0.6216527702210619,
///     'nes': 1.5721004858071521,
///     'leading_edge': 20
///   }
/// ]
/// ```