Matrix of input variables may be called design matrix with each row to be a single datapoint and each column to be a single feature value.

How would you call matrix of response variables with each row to correspond to the same row of the design matrix and each column to be a single component of multivariate response?

(Response matrix? Output matrix?)

  • $\begingroup$ @FransRodenburg I ask exactly about multivariate response $\endgroup$ – Maksym Ganenko Jul 4 '19 at 11:13
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    $\begingroup$ I meant to say I think multivariate response is a fitting name for a matrix of response variables. $\endgroup$ – Frans Rodenburg Jul 4 '19 at 11:16
  • $\begingroup$ Data matrix? I suspect the name you choose is less important than clarifying in context what the rows and columns represent. $\endgroup$ – hplieninger Jul 4 '19 at 11:19

What I know is the term multivariate response is appropriate when referring to such matrix. The term output matrix is somewhat also used, but can be ambiguous since many operations can also have a matrix as a result, yet not appropriately a response.

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