Resample time series in pandas to a weekly interval

Question

How do I resample a time series in pandas to a weekly frequency where the weeks start on an arbitrary day? I see that there\'s an optional keyword base but it only works for

Answer 1

You will be much safer with resampling based on days and then slicing every 7th day, e.g:

ts.resample('D').interpolate()[::7]

See the underlying problem with other approaches in this open pandas issue on github:

https://github.com/pandas-dev/pandas/issues/16381