[GitHub] [arrow] jorisvandenbossche commented on pull request #33925: GH-33923: [Docs] Tensor canonical extension type specification

["jorisvandenbossche (via GitHub)" <gi...@apache.org>]

jorisvandenbossche commented on PR #33925:
URL: https://github.com/apache/arrow/pull/33925#issuecomment-1415415615

   @paleolimbot thanks for the R example (it's nice to see how easy it is!) 
   One small comment on the conversion to/from an R matrix in your example: typically, if you start from an array of a certain dimension, the dimension of the actual shape in the metadata of the TensorType is the original dimension - 1 (since the first dimension becomes the length of the logical TensorArray). In your example, you are converting a single array to a 1-len TensorArray (which is probably related to what you said earlier about having a "chunked array where every chunk had a single element", but just to note that I think this won't be the typical way to convert to/from TensorArray)


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