43. mean returns by quantile quiz

mean_returns_by_quantile

Here is the documentation for alphalens mean_return_by_quantile

Here is the source code

Review these to answer the quiz below.

mean returns by quantile

For the mean_returns_by_quantile function, by default, are the quantiles the same across all time periods of the data? or are quantiles calculated for each time period?

SOLUTION: same across all time periods