wehub-resource-sync
15 lines
803 B
Markdown
15 lines
803 B
Markdown
# Table
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`Table` is Perspective's columnar data frame, analogous to a Pandas `DataFrame`
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or Apache Arrow, supporting append & in-place updates, removal by index, and
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update notifications.
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A `Table` contains columns, each of which have a unique name, are strongly and
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consistently typed, and contains rows of data conforming to the column's type.
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Each column in a `Table` must have the same number of rows, though not every row
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must contain data; null-values are used to indicate missing values in the
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dataset. The schema of a `Table` is _immutable after creation_, which means the
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column names and data types cannot be changed after the `Table` has been
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created. Columns cannot be added or deleted after creation either, but a `View`
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can be used to select an arbitrary set of columns from the `Table`.
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