added index for valley in drawdown

[thlautenschlaeger]

without this adaption an error got thrown since valley is an index position and not the index value

[RichardDale]

Hi Thomas - Quantopian staff have been absent from this project for a while and nobody else appears to be administering it.

It has been forked here: https://github.com/stefan-jansen/pyfolio-reloaded

and it, along with Zipline, is under active development and is compatible with newer Python/Pandas versions.

Perhaps you might want to consider submitting it there too?

Cheers, Richard.

[thlautenschlaeger]

Hi Richard, thanks for your message I'll have a look at pyfolio-reloaded.

Best, Thomas