Enhancement : Enable swifter for combining Series

[fran6w]

s1.swifter.combine(s2, fct)

AttributeError: 'SeriesAccessor' object has no attribute 'combine'

[jmcarpenter2]

Hi @fran6w,

Sorry for not responding sooner.

There is a growing list of feature requests for swifter. I am currently working on implementing a robust version of a swifter.groupby.apply functionality but am running into some optimization issues.

The combine feature sounds useful, and I will certainly see what I can do to include it as the library gets built out more. Happily accepting pull requests in the meantime until I get a chance to work on this feature though.

Thanks,
Jason