X-Git-Url: https://git.octo.it/?p=rrdtool.git;a=blobdiff_plain;f=doc%2Frrdgraph_rpn.src;fp=doc%2Frrdgraph_rpn.src;h=f9ac7fedb9959cb66390026df5dd1fe921009c20;hp=a8c4b112634c76fd92236e71eac8bde6a12dab95;hb=801ce418130e78b4b6818f2c8af85c3ddae400ff;hpb=4223ec6dd69776ac5bb8c7fc945191e589bdcf39

diff --git a/doc/rrdgraph_rpn.src b/doc/rrdgraph_rpn.src
index a8c4b11..f9ac7fe 100644
--- a/doc/rrdgraph_rpn.src
+++ b/doc/rrdgraph_rpn.src
@@ -130,6 +130,13 @@ set or otherwise the result of vname variable at the previous time
 step. This allows you to do calculations across the data.  This
 function cannot be used in B<VDEF> instructions.
 
+B<COUNT>
+
+Pushes the number 1 if this is the first value of the data set, the 
+number 2 if it is the second, and so on. This special value, allows 
+you to make calculations based on the position of the value within 
+the data set. This function cannot be used in B<VDEF> instructions.
+
 Z<>
 
 =item Time