# [rrd-users] Changing X-Axis

Francisco Abel Perea Mora fapeream at unal.edu.co
Thu Oct 20 09:21:47 CEST 2011

```Tanks Tobi

I'll review it.

Francisco Perea
Electrical engineer, MSc.

2011/10/19 Tobias Oetiker <tobi at oetiker.ch>

> Hi Francisco,
>
> Today Francisco Abel Perea Mora wrote:
>
> > Maybe is easier to use a diferent software for display the data and keep
> the
> > rest of RDDTool software as is.
> > I'll try to see wich is the best option.
>
> one option might be to use rrdtool xport to pull the required data
> out, process it and then use some web charting tool like
> http://mbostock.github.com/d3/
>
> to draw the chat you need ...
>
> cheers
> tobi
>
>
>
> >
> > Thanks for your time
> >
> > Best Regards
> >
> > Francisco Perea
> > Electrical engineer, MSc.
> >
> > keep in control how many energy a proccess consum
> >
> > 2011/10/17 <j.halifax2 at seznam.cz>
> >
> > >
> > > Hi Francesco,
> > >
> > >
> > > If you are dealing with efficiency, you probably need to visualize its
> > > values in time
> > > moments of T = {t1, t2, ..., tn} in different levels of aggregations.
> > >
> > > Say that you have one time series of the production P(ti) and another
> time
> > > series of
> > > the consumption C(ti). You can calculate the efficiency time series as
> > > E(ti) =  F(P(ti),
> > > C(ti)), where i = (1, 2, ..., n). Here F(P(ti), C(ti)) can be for
> example
> > > P(ti) / C(ti) or any
> > > other reasonable function of the production and consumption.
> > >
> > > If you can measure P(ti) and C(ti) in equidistant time moments (i.e.
> their
> > > periods of
> > > t(i) - t(i-1) are constant), you can generate nice graphs of
> development of
> > > Efficiency
> > > (which you are interesting in) in time.
> > >
> > > Together with graphing P(ti) and C(ti), such graphs could tell your
> > > technology guys
> > > much about dependence of their efficiency on the production,
> consumption
> > > and even
> > > help them disclosing energy loss in the grid including illegal
> consumption
> > > etc.
> > >
> > > Isn't it what you would like?
> > >
> > >
> > > Regards,
> > > Leos
> > >
> > > > From: rrd-users-bounces+s.shipway=auckland.ac.nz at lists.oetiker.ch
> > > > [mailto:rrd-users-bounces+s.shipway=auckland.ac.nz at lists.oetiker.ch]
> On
> > > > Behalf Of Francisco Abel Perea Mora
> > > > Sent: Tuesday, 18 October 2011 11:59 a.m.
> > > > To: rrd-users at lists.oetiker.ch
> > > > Subject: [rrd-users] Changing X-Axis
> > > >
> > > >
> > > >
> > > > Hi,
> > > >
> > > >
> > > >
> > > > After searching for hours how to setup X-Axis I still have a question
> > > >
> > > > I'm working with energy efficency. We take measures from energy
> > > consumption
> > > > and production at the same time. As an example say:
> > > >
> > > > Month            Energy Production
> > > >
> > > >                       [KWh] [Ton]
> > > >
> > > > march-98       138480            2161680
> > > >
> > > > april-98          122880            2103370
> > > >
> > > > may-98          155280            2401320
> > > >
> > > > jun-98            157920            2537565
> > > >
> > > > jul-98             159600            2303359
> > > >
> > > > aug-98           177600            2811775
> > > >
> > > >
> > > >
> > > > An so on. The interesting graph in this time series is Energy vs.
> > > > Production. Is possible to graph this with RRDTool? By default X-Axis
> is
> > > > always fixed to time series, but I need to change that to Production
> and
> > > > setup Y-Axis to Energy. How could I do this?
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > >
> >
>
> --
> Tobi Oetiker, OETIKER+PARTNER AG, Aarweg 15 CH-4600 Olten, Switzerland
> http://it.oetiker.ch tobi at oetiker.ch ++41 62 775 9902 / sb: -9900
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.oetiker.ch/pipermail/rrd-users/attachments/20111020/45d4ddf4/attachment-0001.htm
```