frame/typed

(defstruct Frame [^&cols])

a phantom row-typed handle on a frame, parameterised by its

Since: U3

(frame-typed)

wrap a raw :int frame handle as a row-typed Frame.

Since: U3

(frame-handle)

unwrap a row-typed Frame back to its raw :int handle so it

Since: U3

(tframe-nrows)

number of rows. Typed delegate of frame-nrows.

Since: U3

(tframe-ncols)

number of columns. Typed delegate of frame-ncols.

Since: U3

(tframe-schema)

the raw :int schema handle (still owned by the frame).

Since: U3

(tcol)

the :int column handle for a named column. Returns 0 if absent.

Since: U3

(tframe-column-at)

the :int column handle at index i (0-based), or 0 if

Since: U3

(tcol-int32-at)

read the int32 cell at row i of the named column.

Since: U3

(tcol-int64-at)

read the int64 cell at row i of the named column.

Since: U3

(tcol-float64-at)

read the float64 cell at row i of the named column.

Since: U3

(tcol-utf8-at)

read the utf8 cell at row i of the named column.

Since: U3

(tframe-free)

release the underlying frame (schema, columns, descriptor).

Since: U3