[rrd-users] omit invalid values

[Ulrich Stärk]

Hi,

I'm new to rrdtool so please be patient with me :-)

I used ntop to populate some rrds and now want to generate custom graphs 
from those. Unfortunately some really unreasonable values got stored in 
my rrds which I neither want to be printed in my graphs nor be used for 
calculating the min/max/avg values.

How can I tell rrdtool to just ignore values above some threshhold that 
I specify?

TIA,

Uli