Hi, INF only graphs from 0 to infinity, so negative values will never be covered.
you can add an other CDEF for the negative part with NEGINF. http://oss.oetiker.ch/rrdtool/doc/rrdgraph_rpn.en.html INF, NEGINF Pushes a positive or negative infinite value on the stack. When such a value is graphed, it appears at the top or bottom of the graph, no matter what the actual value on the y-axis is. so your other CDEF would be like: CDEF:night=LTIME,86400,%,$1,LT,NEGINF,LTIME,86400,%,$2,GT,NEGINF,UNKN,Basement,*,IF,IF Mvg, Erik Paul Rimmer schreef: > Hi, > > The line that defines the CDEF used for night is: > > > CDEF:night=LTIME,86400,%,$1,LT,INF,LTIME,86400,%,$2,GT,INF,UNKN,Basement,*,IF,IF > \ > Cheers, > Paul > > > ------------------------------------------------------------------------ > > _______________________________________________ > rrd-users mailing list > rrd-users@lists.oetiker.ch > https://lists.oetiker.ch/cgi-bin/listinfo/rrd-users _______________________________________________ rrd-users mailing list rrd-users@lists.oetiker.ch https://lists.oetiker.ch/cgi-bin/listinfo/rrd-users