new export options

diff --git a/help/html/calculations/pca.html b/help/html/calculations/pca.html
index d9b4b45..082cd84 100755 (executable)
--- a/help/html/calculations/pca.html
+++ b/help/html/calculations/pca.html
@@ -63,7 +63,9 @@ View menu is checked, and the plot background colour changed from the
 View→Background Colour.. dialog box. The File menu allows the view
 to be saved (<strong>File&#8594;Save</strong> submenu) as an EPS or PNG
 image or printed, and the original alignment data and matrix resulting
-from its PCA analysis to be retrieved.</p>
+from its PCA analysis to be retrieved. The coordinates for the whole PCA
+space, or just the current view may also be exported as CSV files for
+visualization in another program or further analysis.</p>
 <p>A tool tip gives the sequence ID corresponding to a point in the
 space, and clicking a point toggles the selection of the corresponding
 sequence in the associated alignment window views. Rectangular region
@@ -77,5 +79,6 @@ similarity space, but any eigenvector can be used by changing the
 selected dimension for the x, y, or z axis through each ones menu
 located below the 3d display.</p>
 <p>
+<p>
 </body>
 </html>