# HG changeset patch
# User jwe
# Date 1178122528 0
# Node ID 376b715747287930f85f6c0a71532addebe46236
# Parent  c2b700808e0a5bb27813846d29396c1eaffebe59
[project @ 2007-05-02 16:15:28 by jwe]

diff --git a/scripts/ChangeLog b/scripts/ChangeLog
--- a/scripts/ChangeLog
+++ b/scripts/ChangeLog
@@ -1,3 +1,7 @@
+2007-05-02  John W. Eaton  <jwe@octave.org>
+
+	* plot/__go_draw_axes__.m: Convert NA to NaN before writing.
+
 2007-05-02  G. D. McBain  <geordie.mcbain@aeromech.usyd.edu.au>
 
 	* contour.m: Rewrite help string.
diff --git a/scripts/plot/__go_draw_axes__.m b/scripts/plot/__go_draw_axes__.m
--- a/scripts/plot/__go_draw_axes__.m
+++ b/scripts/plot/__go_draw_axes__.m
@@ -889,6 +889,13 @@
 
   ## FIXME -- this may need to be converted to C++ for speed.
 
+  ## Convert NA elements to normal NaN values because fprintf writes
+  ## "NA" and that confuses gnuplot.
+  idx = find (isna (data));
+  if (any (idx))
+    data(idx) = NaN;
+  endif
+
   if (nd == 2)
     nan_elts = find (sum (isnan (data)));
     fmt = strcat (repmat ("%g ", 1, rows (data)), "\n");