Hello, I am currently working on a swimming pool control. I store values every 15 min (precise timestamp; 16:15:00; 16:30:00; etc.) and for every 15 min I store the "heat_flag", which is either "0" (heating off) or "1" (heating on).
# rrdtool create temp_pool.rrd --step 900 --start "20140101 00:00" \ # DS:pump_flag:GAUGE:1200:0:1 \ # DS:heat_flag:GAUGE:1200:0:1 \ # DS:device:GAUGE:1200:0:90 \ # RRA:AVERAGE:0.5:1:103680 \ # RRA:MIN:0.5:96:3650 \ # RRA:MAX:0.5:96:3650 \ # RRA:AVERAGE:0.5:96:3650 I would like to calculate the total heating time per day. For that, I would like to find the number of "1" values per day. In the end, multiply by 15min and I know the total heating time. I tried: CDEF:heattime2=heat_flag,900,*,60,/ \ VDEF:totalheattime=heattime2,AVERAGE' GPRINT:totalheattime:"Total\: %2.2lf h \n"' but I get wrong results. I probably have to do the calculation completly different. Can anyone help me out here? I should get perfectly aligned values as a result: 0.25 h; 0.50h; etc. How can I achieve this? Thanks a million, spo -- View this message in context: http://rrd-mailinglists.937164.n2.nabble.com/How-to-calculate-desired-value-tp7582375.html Sent from the RRDtool Users Mailinglist mailing list archive at Nabble.com. _______________________________________________ rrd-users mailing list rrd-users@lists.oetiker.ch https://lists.oetiker.ch/cgi-bin/listinfo/rrd-users