Implemented generic computation of anomalies on arbitrary time-scale.

climax/core/dataset.py

@@ -237,7 +237,7 @@ class EoDataset(torch.utils.data.Dataset):
     def anomalies(ds, timescale='time.dayofyear', standard=False):
         # group dataset by time scale
         LOGGER.info('Computing anomalies ...')
-        groups = ds.groupby('time.dayofyear').groups
+        groups = ds.groupby(timescale).groups
 
         # compute anomalies over time
         anomalies = {}