> The problem is that when I update the rrd with for i in $(cat file.csv); do > rrdtool update filename.rrd $i; done i get a lot (really, a lot) of "NaN".
Your problem is that your data are in Scientific format; 'rrdtool update' wants them as decimals. Your file says: 1357081200:5.3186666666e+01:1.9346617284e+01 RRDTool wants: 1357081200:53.186666666:19.346617284 Steve Steve Shipway [email protected]
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