hi team - is it possible to assign a kedro viz layer to a memory dataset?

Someone will reply to you shortly. In the meantime, this might help:

Yes, you'll have to define the datasets you want the layer for in the catalog.yml. If you want it for all memory datasets created by default you can also override the default dataset pattern so the layer is always included: https://docs.kedro.org/en/stable/data/kedro_dataset_factories.html#how-to-override-the-default-dataset-creation-with-dataset-factories

okay got it. my next question would then be whether i can store a numpy.ndarray in the catalog and if so which dataset type would i use?

do you want to save it between runs?

ah okay cool, will try those. thank you!