DataFrame
DataFrame =
object
Defined in: packages/model-dataset/src/frame/data-frame.ts:26
A relation: named, typed columns of equal length.
Columnar because that is how it is read — a renderer scans one field
end-to-end to find a domain, then maps it — and because a complete numeric
column can then be a typed array rather than a boxed one. Rows are reached
through dataFrameRow, and built through dataFrameFromRows or
DataFrameBuilder.
columns is parallel to fields: columns[i] holds fields[i]’s values.
Properties
Section titled “Properties”columns
Section titled “columns”columns:
Column[]
Defined in: packages/model-dataset/src/frame/data-frame.ts:30
fields
Section titled “fields”fields:
FieldDescriptor[]
Defined in: packages/model-dataset/src/frame/data-frame.ts:29
optionalmeta?:FrameMeta
Defined in: packages/model-dataset/src/frame/data-frame.ts:32
optionalname?:string
Defined in: packages/model-dataset/src/frame/data-frame.ts:28
Machine name, for joining several frames or naming an output file.
rowCount
Section titled “rowCount”rowCount:
number
Defined in: packages/model-dataset/src/frame/data-frame.ts:31