[Matplotlib-users] Formatting the ticks in a plot

[Brad M. <bra...@gm...>]

Hello,

I am working on a plot in which I need to modify the value of the xticks. A
snippet of my code is attached below:

              fig=figure()
>
>     gs=matplotlib.gridspec.GridSpec(1,2,width_ratios=[3,1])
>     gs.update(wspace=0.1)
>     ax=subplot(gs[0])
>     ylabel('Frequency (cm'+r'$^{-1}$'+')')
>     for i in range(0,len(ydata)):
>         plot(xdata[i],ydata[i],'r-',linewidth=1.5)
>     plot(xdata[0],[0.0]*len(xdata[0]),'k:')
>
> pos=[0,49.9856985699,99.9713971397,170.661849982,212.979781775,283.67023461\
> 7,333.655933187,375.97386498]
>
> locs,labels=xticks(pos,[r'$\Gamma$','X','M',r'$\Gamma$','Z','A','R','X'])
>     for i in range(0,len(pos)):
>         plt.axvline(x=pos[i],linewidth=0.5,color='k',alpha=0.5)
>     axis([0,375.98,0,300])
>     ax2=subplot(gs[1])
>     plot(dosydata,dosxdata,'r-',linewidth=1.5)
>     a=gca()
>     b=a.get_xticks()
>     print b
>     a.xaxis.set_ticks([0.0, 0.015, 0.03])
>    a.tick_params(axis='x',labelsize=14)
>     a.set_xlim([0,0.03])
>     a.set_ylim([0,300])
>     ax.label_outer()
>     ax2.label_outer()
>     show()
>
>
It's a plot with two subplots. Anyway, the issue I'm running into concerns
the x-axis on the second subplot. As you can see I have set it explicitly
with "a.xaxis.set_ticks([0.0, 0.015, 0.03])". However, when I do this it
shows up as (0.000, 0.015,0.030) which I would really like it to look like
(0,0.015,0.03). In other words, I don't want extra zeros because they are
unnecessary and make the text run into my other subplot. So I need to be
able to format them somehow. How would I achieve this selective formatting
(because of course I want 0.015 to show up that way and not 0.01).

Thanks so much in advance for the help!

Best,
Brad