Merge pull request #207 from kberg/master

[dygraphs.git] / docs / data.html

diff --git a/docs/data.html b/docs/data.html
index bf1e897..135fe16 100644 (file)
--- a/docs/data.html
+++ b/docs/data.html
@@ -292,8 +292,13 @@
       <i>customBars</i>: [x, [low1, val1, high1], [low2, val2, high2], ...]
     </code>
 
-    <p>To specify missing data, set the value to null. You may not set a value
-    inside an array to null. Use null instead of the entire array.</p>
+    <p>To specify missing data, set the value to null or NaN. You may not set a value
+    inside an array to null or NaN. Use null or NaN instead of the entire array. 
+    The only difference between the two is when the option
+    <a href="options.html#conectSeparatedPoints">connectSeparatedPoints</a>
+    true. In that case, the gaps created by nulls are filled in, and gaps
+    created by NaNs are preserved.
+    </p>
 
     <a name="function"><h3>Functions</h3>
 
@@ -304,6 +309,8 @@
       function() { return x; }
     </code>
 
+    Functions can return strings, arrays, data tables, URLs, or any other data type.
+
     <a name="datatable"><h3>DataTable</h3>
     <p>You can also specify a Google Visualization Library <a
       href="http://code.google.com/apis/visualization/documentation/reference.html#DataTable">DataTable</a>