Select/Hide Columns by Annotation

From Jalview-2.9 columns of an alignment can be filtered using any annotation rows added to that alignment.

• The target annotation row can be selected using the drop-down option menu in the top-most part of the window.
• Search Filter
  • When a text is entered in the text box within the Search Filter section, the "Display Label" and "Description" options becomes enabled for selection.
  • On selecting any of the options, a regular expression search (RegEx) is executed on the specified field of the current annotation row selected, and the matching columns will be highlighted in the alignment.
• Structure Filter
  • Alignment columns can also be filtered by the type of secondary structure present in a target annotation row.
  • This can be achieved by ticking the type of structure you wish to filter by under the structures filter section.
• Threshold Filter
  • This filter is only activated for annotation which contain numeric values
  • Select whether to filter the alignment above or below an adjustable threshold with the selection box within the threshold filter section.
  • Change the threshold value with the slider, or enter the exact value in the text box.
• Actions
  • The "Select" and "Hide" radio buttons determines the action that will be carried out on the matching columns in the alignment during the filtering process.
  • The default option is "Select" and this simply enables column selection on the matching alignment column.
  • While the "Hide" option enables the matching columns to be hidden automatically during the filtering process.
  • The "Ok" button applies the filter when clicked.
  • And finally, the "Cancel" button restores the alignment to its previous state before any filtering was applied.