Thanks for the response. I apologize for my mistake - I had added a _name to my observers as well, which seem to not accept that parameter.

When trying to add an analyzer with a _name parameter, it says: init() got an unexpected keyword argument '_name'

I have written a custom data feed which resamples large amounts of tick data. That is of course quite slow. When tick data is not necessary I would like to start with less granular data.

I know that I can add a writer to the resampler, however the output is not immediately useable as a data source. Is there some simple way to resample and output a usable data file?