projects
/
rrdtool.git
/ blobdiff
commit
grep
author
committer
pickaxe
?
search:
re
summary
|
shortlog
|
log
|
commit
|
commitdiff
|
tree
raw
|
inline
| side by side
src/rrd_daemon.c: Impemented the `stats' command.
[rrdtool.git]
/
doc
/
rrdgraph_rpn.pod
diff --git
a/doc/rrdgraph_rpn.pod
b/doc/rrdgraph_rpn.pod
index
cf62c08
..
aabd738
100644
(file)
--- a/
doc/rrdgraph_rpn.pod
+++ b/
doc/rrdgraph_rpn.pod
@@
-99,6
+99,11
@@
B<+, -, *, /, %>
Add, subtract, multiply, divide, modulo
Add, subtract, multiply, divide, modulo
+B<ADDNAN>
+
+NAN-safe addition. If one parameter is NAN/UNKNOWN it'll be treated as
+zero. If both parameters are NAN/UNKNOWN, NAN/UNKNOWN will be returned.
+
B<SIN, COS, LOG, EXP, SQRT>
Sine and cosine (input in radians), log and exp (natural logarithm),
B<SIN, COS, LOG, EXP, SQRT>
Sine and cosine (input in radians), log and exp (natural logarithm),
@@
-257,6
+262,12
@@
the first occurrence of that value in the time component.
Example: C<VDEF:avg=mydata,AVERAGE>
Example: C<VDEF:avg=mydata,AVERAGE>
+=item STDEV
+
+Returns the standard deviation of the values.
+
+Example: C<VDEF:stdev=mydata,STDEV>
+
=item LAST, FIRST
Return the last/first value including its time. The time for
=item LAST, FIRST
Return the last/first value including its time. The time for