added STDEV aggregation function for VDEF. -- Patrick J Cherry patrick bytemark.co.uk

[rrdtool.git] / src / rrd_graph.h

diff --git a/src/rrd_graph.h b/src/rrd_graph.h
index 00ab15b..dd13237 100644 (file)
--- a/src/rrd_graph.h
+++ b/src/rrd_graph.h
@@ -54,6 +54,7 @@ enum vdef_op_en {
     VDEF_MAXIMUM = 0    /* like the MAX in (G)PRINT */
         , VDEF_MINIMUM  /* like the MIN in (G)PRINT */
         , VDEF_AVERAGE  /* like the AVERAGE in (G)PRINT */
+        , VDEF_STDEV    /* the standard deviation */
         , VDEF_PERCENT  /* Nth percentile */
         , VDEF_TOTAL    /* average multiplied by time */
         , VDEF_FIRST    /* first non-unknown value and time */