* seen on the GUI, ie if columns are hidden they will not\r
* be returned in the result.\r
* Use this for calculating trees, PCA, redundancy etc on views\r
* which contain hidden columns.\r
* @return String[]\r
*/\r
* seen on the GUI, ie if columns are hidden they will not\r
* be returned in the result.\r
* Use this for calculating trees, PCA, redundancy etc on views\r
* which contain hidden columns.\r
* @return String[]\r
*/\r