[rrd-users] Question abourt NULL Value in a graphic

[Leonardo Barbosa e Oliveira]

Hello everybody!

I'm fetching values from a data base, doing a rrd, and
then, ploting using rrdtool graph. 
I would like to know what will be plot and de value
is NULL.

Any help will be very appreciated.

Thank in advance!

     Leonardo

      "You are what you eat"
                 Garfield 
         
-------------------- 		 
Leonardo Barbosa e Oliveira	
Lab. ATM/DCC/UFMG/Brasil - leob at dcc.ufmg.br
Projeto ReMAV BH2 - http://www.dcc.ufmg.br/~admbh2
Grupo de Gerencia, Operacao e Manutencao da Rede

On Fri, 8 Mar 2002, Guilherme Barile wrote:

> 
> Do you of you have more examples ? Maybe real world examples with snmp data
> too ?
> 
> thanks
> 
> gui
> 
> ----- Original Message -----
> From: "Olivier Nicole" <Olivier.Nicole at ait.ac.th>
> To: <gui at prosoma.com.br>
> Cc: <rrd-users at list.ee.ethz.ch>
> Sent: Friday, March 08, 2002 12:15 AM
> Subject: Re: [rrd-users] Graph Different
> 
> 
> Gui,
> 
> Let say iperr represend the ifInError:
> 
>                          "DEF:i=ait.rrd:iperr:AVERAGE",
>                          "CDEF:iii=i,UNKN,EQ,0,1,IF",
>                          "CDEF:ii=i,iii,*,INF,0,IF",
>                          "STACK:ii#ff0000:InError    ",
> 
> works for me (red only).
> 
> iii takes values 1 or 0 depending is the data iperr is known or not.
> 
> ii takes the value "infinite" is iii is 1
> 
> and I stack that on the other area type data.
> 
> Olivier
> 
> 
> 
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