Delete One Column

To delete a single column from the design matrix, select the DelCol, One Column choices. As a shortcut or accelerator, the Ctrl+D keys can be used to delete the current column. The current column is the one containing the highlighted cell. As an example, suppose the following design matrix is on the screen, with the current column shown as the one with the underlined value.

After the column is deleted, the matrix would look like this.