Skip to content

DataFrame should support Array data #5746

New issue
New issue
Closed
Closed
DataFrame should support Array data#5746

Description

@pgovind
pgovind
opened on Apr 12, 2021

Currently, DataFrame only supports primitive types. Specifically, a DataFrameColumn can only only 1 primitive value per row. There are applications however that need to hold a DataFrameColumn of Array<T>, so each row holds an array of values. ML.NET supports holding Array, so IDataView.ToDataFrame might run into this issue at some point.

Activity

  1. pgovind
    added
    Microsoft.Data.Analysis
    on Apr 12, 2021

  2. LittleLittleCloud commented on Apr 13, 2021

    @LittleLittleCloud
    LittleLittleCloud
    on Apr 13, 2021
    Member

    Thanks for bring this up

  3. rosebyte commented on Sep 3, 2026

    @rosebyte
    rosebyte
    on Sep 3, 2026
    Member

    Array-like ML.NET data is now represented by VBufferDataFrameColumn<T>, which stores a vector for each row and supports IDataView conversion.

  4. rosebyte
    closed this as completedon Sep 3, 2026
  5. github-actions
    locked and limited conversation to collaborators on Oct 4, 2026
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Metadata

Metadata

Assignees

No one assigned

    Labels

    No labels
    No labels

    Type

    No type

    Projects

    No projects

      Milestone

      No milestone

      Relationships

      None yet

      Development

      No branches or pull requests

      Issue actions