Hi, I was trying to do something which I thought was fairly simple, but I keep on getting the following error:
"ERROR: rpn expressions without DEF or CDEF variables are not supported" In the most simplest form, I am trying to do the following: DEF:A=<rrdfile>:A:AVERAGE DEF:B=<rrdfile>:B:AVERAGE VDEF:TA=A,TOTAL VDEF:TB=B,TOTAL CDEF:TAB=TA,TB,ADDNAN So, a VDEF is a set of data and a CDEF is a single value, but a TOTAL will be a single value? I am trying to take two totals and add them together - seems fairly common to want to do this? I am using RRDTOOL 1.4.7 - is there an easy way to achieve this, can I put TA and TB in a CDEF before using ADDNAN? Thanks as always, Chris _______________________________________________ rrd-users mailing list [email protected] https://lists.oetiker.ch/cgi-bin/listinfo/rrd-users
