Adam Jacob Muller wrote: >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
Hmm, looking at the doc pages it doesn't look like boolean operators (AND, OR) are provided, if they were then I would suggest 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,+ CDEF:final_value=field1,UN,field2,UN,AND,field_total,UNKN,IF This is a bit contrived, but how about : CDEF:a=field1,UN,field2,0,IF ie IF filed1 is unknown, set a=field2, else set a=0 CDEF:final_total=a,UN,UNKN,field_total,IF ie, if a is unknown (means both field1 and field2 must be unknown), then set final_value to unknown, else use total calculated. _______________________________________________ rrd-users mailing list [email protected] https://lists.oetiker.ch/cgi-bin/listinfo/rrd-users
