On Tue, Feb 19, 2008 at 01:35:37PM -0300, Eduardo Bragatto wrote:
> CDEF:memBuffer=UNKN,DSmemBuffer,EQ,DSmemBuffer,0,IF > > I was expecting memBuffer to have 0 or the value from DSmemBuffer if > it's not NaN. > > Does anybody knows what I'm doing wrong? First of all you are trying to get either 0 or NaN out of it: Your CDEF means: if (Nan == DSmemBuffer) then DSmemBuffer else 0 But reversing the two possible results won't work either. You are using "EQ" and "UNKN" (NaN) together. Nothing is equal, not even another NaN. Try CDEF:memBuffer=DSmemBuffer,UN,0,DSmemBuffer,IF which means: if isnan(DSmemBuffer) then 0 else DSmemBuffer -- Alex van den Bogaerdt http://www.vandenbogaerdt.nl/rrdtool/ _______________________________________________ rrd-users mailing list [email protected] https://lists.oetiker.ch/cgi-bin/listinfo/rrd-users
