Re: Exponential notation in tick labels?

[Matthias Brennwald]

On Sep 9, 2009, at 2:10 PM, Carlo de Falco wrote:

> 2009/9/9 Matthias Brennwald <address@hidden>:
> > Dear all
> >
> > I'm sure this has been discussed before, but I couldn't find anything
> > (maybe I did not chose the right search terms). I'd like to use
> > exponential notation for tick-mark labels in plots. For instance  
> > "plot
> > ([0:1e4:1E6])" yields a plot with y-axis labels 0, 200000, 400000,
> > 600000, 700000, 1e+6. I'd like these to be 0, 2e5, 4e5, 6e5, 8e5,  
> > 1e6.
> > Or, even better, 0, 2x10^5, 4x10^5,..., 10^6. How can I achieve this?
>
>
> octave-3.2.2:40> plot ([0:1e2:1e6])
> octave-3.2.2:41> xt = get(gca, 'xtick');
> octave-3.2.2:42> yt = get(gca, 'ytick');
> octave-3.2.2:43> set(gca, 'xticklabel', sprintf('%1.1e|', xt));
> octave-3.2.2:44> set(gca, 'yticklabel', sprintf('%1.1e|', yt));
>
>
> HTH,
> c.

Thanks, this does the trick! Now I could even try to adapt this to the  
"10^n" notation... I don't know a direct way to use sprintf(...) to  
print numbers in  the 10^n format, but I guess it is feasible by  
manipulating the ticklabels using string functions somehow.

Thanks again
Matthias