Module agnes::view [−] [src]

Main DataView struct and associated implementations.

Aggregation

There are three types of data aggregation supported by agnes:

Data merging -- combining two DataView objects with the same number of records together, creating a new DataView with all the fields of the two source DataViews.
Data appending -- combining two DataView objects with the same fields, creating a new DataView object with all of the records of the two source DataViews.
Data joining -- combining two DataView objects using specified join, creating a new DataView object with a subset of records from the two source DataViews according to the join parameters.

DataView	A 'view' into a data store. The primary struct for viewing and manipulating data.
FieldView	A 'view' into a single field's data in a data store. This is a specialty view used to serialize a `DataView` as a single sequence instead of as a map.
ViewField	A field in a `DataView`. Contains the (possibly-renamed) field identifier and the store index with the underlying data.

IntoFieldList	Conversion trait for converting into a vector of Strings. Used for indexing into a `DataView`.
SerializeAsVec	Marker trait to denote an object that serializes into a vector format