> Therefore, is there a way of saying: > > "if date before d0, then clamp to lim1 else clamp to lim2" >
The CDEF language has an LTIME operator that can do that. Don't ask me for details, haven't ever used it. > The second approach I considered would be to go into the rrd file and > iterate over the values, looking for peaks greater than 2Mb, and > replacing them by a linear interpolation between to the two points > either side of the peak? > > The maths doesn't pose much of a problem, I'm wondering about the > mechanics of going through the datapoints in the rrd file. That would be a clean solution. You could do it like this: - "rrdtool dump" the database - Use a regexp to extract the DS values from your RRA rows - Change them to what you like - "rrdtool restore" the database back to its binary form Serge. ------------- Op de inhoud van dit e-mailbericht en de daaraan gehechte bijlagen is de inhoud van de volgende disclaimer van toepassing: http://www.zeelandnet.nl/disclaimer.php -- Unsubscribe mailto:[EMAIL PROTECTED] Help mailto:[EMAIL PROTECTED] Archive http://www.ee.ethz.ch/~slist/rrd-users WebAdmin http://www.ee.ethz.ch/~slist/lsg2.cgi
