Open dheller1 opened 5 years ago
Still didn't understood how to use it...
I need just a slice of Dataset
but returned as another Dataset
instance.That's what "Pythonic" means. If you make Dateset
to behave as, say, list
, then do it all the way. So, I could for example take a subset of my data then convert it into another format. Returning list
from slice is just ugly.
It took me quite a while to figure out how to use
Dataset.subset
.The documentation states the interface is
subset(rows=None, cols=None)
, so my first assumption was to just pass two ints for the number of requested rows and columns, and when that didn't work I passed a list of column indices, but also to no avail.Only after debugging I finally found out that I first need to define column headers for the Dataset instance and then pass a subset of these headers to
cols
.In my opinion, this could be made more clearly in the documentation. Also, is there a reason why headers are required and we cannot alternatively just pass column indices?
I would go ahead and try to implement that myself if you don't mind.