Alex; That's my point.
I am trying to locate the first non NAN value. For me to specify the time period would defeat the purpose ..... ? Warmest Regards Steven Sim On Fri, Jul 4, 2014 at 4:56 PM, Alex van den Bogaerdt < [email protected]> wrote: > > Hello; > > > > I don't think is suppose to happen. > > > > FIRST sued in VDEF context is supposed to provide the first non NAN value > > for the selected data stream > > > > And yet I'm getting .. > > > > $ rrdtool graph placeholder.png DEF:CPUBusyx=mydata.rrd:CPUBusy:AVERAGE > > VDEF:CPUBusyFirst=CPUBusyx,FIRST "PRINT:CPUBusyFirst:%18.5lf" > > 0x0 > > -nan > > The code returns NaN if there is only NaN available. In that case it also > returns time zero. Please print the time component and look at this. > > Retry your example with a specific start and end time, on data which you > know to be known. > > > > >
_______________________________________________ rrd-users mailing list [email protected] https://lists.oetiker.ch/cgi-bin/listinfo/rrd-users
