UMAP from distance matrix?

[robertfeldt]

Having read the UMAP paper it seems to me that one should be able to use UMAP even for data which is not represented as a vector of float's, e.g. when one only has a full distance matrix. Any plans to support this in UMAP.jl?

[dillondaudert]

This is possible, and already supported in the Python umap; implementing it in UMAP.jl should be relatively straightforward. I'll try to get to it in the next week or so.

[robertfeldt]

Thanks, appreciated.

[dillondaudert]

I still need to add documentation, but you can test this out on the dist_matrix branch. The API is the same, just pass in your distance matrix as X and the metric keyword arg as Precomputed().

[dillondaudert]

Just changed this a bit; instead of passing a type, pass the symbol :precomputed

[dillondaudert]

Released v0.1.3 with this functionality implemented #9