Hello, I have an application utilizing rrdtool where it is in some cases useful to produce "aggregate" graphs of information, this works great in rrdtool by just doing a CDEF=somefield_aggregate=field1,field2,+
the only problem I experience here is when field1 or field2 are NAN, obviously when field1 and field2 are NAN the proper result is NAN, but if field1 is NAN and field2 is some positive value than the result should be field2's value. Right now I am solving this by doing something like: CDEF:field1_nz=%s,UN,0,field1,IF CDEF:field2_nz=%s,UN,0,field2,IF CDEF:field_total=field1_nz,field2_nz,+ this works, but, on values where both are NAN this returns 0, it would be much more preferable to return NAN here Any ideas how to do this. -Adam _______________________________________________ rrd-users mailing list [email protected] https://lists.oetiker.ch/cgi-bin/listinfo/rrd-users
