* dataset tests
   - [X] reduce_data
   - [X] reduce_data_grouped
   - [X] reduce_data_indexed
   - [X] randsamp_freq
   - [X] resample_data
   - [X] jackknife_data
   - [X] moments_type
   - [X] cumulative
   - [X] moments_to_comoments
   - [X] select_momet
   - [X] assign_moment
   - [X] rolling_data
   - [X] rolling_exp_data
   - [X] reduce_vals
   - [X] resample_vals
   - [X] jackknife_vals
   - [X] vals_to_data
   - [X] rolling_vals
   - [X] rolling_exp_vals


* dask tests
   - [X] reduce_data
   - [X] reduce_data_grouped
   - [X] reduce_data_indexed
   - [ ] randsamp_freq
   - [X] resample_data
   - [X] jackknife_data
   - [X] moments_type
   - [X] cumulative
   - [X] moments_to_comoments
   - [X] select_momet
   - [X] assign_moment
   - [X] rolling_data
   - [X] rolling_exp_data
   - [X] reduce_vals
   - [X] resample_vals
   - [X] jackknife_vals
   - [X] vals_to_data
   - [X] rolling_vals
   - [X] rolling_exp_vals
