X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=doc%2Frrdgraph_rpn.pod;h=894fef16bbabcf42215946a1f880d8241d954f38;hb=355e29120ccb981bab8779dab297d0302b7524ec;hp=5558c224b70c8e15bb3455911ebeb77158695abe;hpb=3b8e10c66bfeb447e8b06b7296f748c405c8453d;p=rrdtool.git

diff --git a/doc/rrdgraph_rpn.pod b/doc/rrdgraph_rpn.pod
index 5558c22..894fef1 100644
--- a/doc/rrdgraph_rpn.pod
+++ b/doc/rrdgraph_rpn.pod
@@ -344,9 +344,8 @@ Example: C<VDEF:stdev=mydata,STDEV>
 
 =item LAST, FIRST
 
-Return the last/first value including its time.  The time for
-FIRST is actually the start of the corresponding interval, whereas
-LAST returns the end of the corresponding interval.
+Return the last/first non-nan or infinite value for the selected data
+stream, including its timestamp.
 
 Example: C<VDEF:first=mydata,FIRST>