- Go to the tutorial: http://people.ee.ethz.ch/~oetiker/webtools/rrdtool/tutorial/cdeftutorial .html - look for the part "Changing unknown into zero" - look at the "MEDIAN FILTER" part, it uses the PREV() function - Combine those 2
Serge. -----Original Message----- From: Brander, Eric [mailto:[EMAIL PROTECTED] Sent: Monday, February 10, 2003 3:08 PM To: [email protected] Subject: [rrd-users] Ignoring Unknown Data in the graph MRTG with Rateup, by default, ignores unknown values and repeats the last reading. I'm building a chart where such a feature would be desirable with my new rrdtool generated graph (not using MRTG at all). Is there a setting in the gathering of data, or perhaps in the building of the image, that could do this? I want to avoid graph dropoffs when the data gatherer fails. Or better yet, plot the last known data, but change the color of that interval to indicate an error condition. The unknowns throw off my averages and minimums and the chart looks horrible. I searched the archive but found nothing that is relevant, maybe because I'm not certain what I am asking for. Also, when I do an archive search, the documents given don't seem to have anything to do with what I've searched on. Seems to be a Google issue, maybe? Thanks in advance for any help you can provide. Eric Brander ACS Texas CHIP Account Sr. Communications Engineer - Information Systems Department 512.336.3331 Eric dot Brander at acs-inc dot com -- 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 -- 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
