GPUdb.aggregate_convex_hull( table_name = None, x_column_name = None,
y_column_name = None, options = {} )
Calculates and returns the convex hull for the values in a table specified by input parameter table_name.
Input Parameter Description
| Name | Type | Description |
|---|---|---|
| table_name | str | Name of Table on which the operation will be performed. Must be an existing table. It can not be a collection. |
| x_column_name | str | Name of the column containing the x coordinates of the points for the operation being performed. |
| y_column_name | str | Name of the column containing the y coordinates of the points for the operation being performed. |
| options | dict of str | Optional parameters. Default value is an empty dict ( {} ). |
Output Parameter Description
| Name | Type | Description |
|---|---|---|
| x_vector | list of floats | Array of x coordinates of the resulting convex set. |
| y_vector | list of floats | Array of y coordinates of the resulting convex set. |
| count | int | Count of the number of points in the convex set. |
| is_valid | bool |