[ Version ( since = "5.2.0" ) ]
public DataModelArray? array_copy_model_ext (int[] cols) throws Error
Like array_copy_model, makes a copy of this , but copies only some columns.
| this |
a DataModel to copy data from |
| cols |
array of this's columns to copy into the new array, not |
| ncols |
size of |
|
a new data model, or |