fully labeled input causes exception

[changhiskhan]

I'm trying to plot embeddings generated from the images of the oxford pets dataset, reduced using UMAP.
When I try to create a plot, I get the error shown below. It seems to require that I have "Unlabelled" data. If i manually set one of the labels to "Unlabelled" (the default noise label), then the plot is generated as expected

[changhiskhan]

here's the successful example:

[lmcinnes]

It should be solved now in the main branch. I may wait a little while to roll up any other fixes come up in the next week before making a patch release.

[dhruv-anand-aintech]

I think the fix has not made it to a pypi package yet (tried 0.2.2). Can one be made?

[lmcinnes]

It should be in there, so possibly something has gone astray. I am travelling at the moment, but let me try to look into it when I get some time.