Plotting a list of hours

Question

Ok, I searched a lot about it but still I didn't get it quite well... Suppose I have:

listHours = ['00:00:000-10:00:000', '10:00:000-20:00:000', '20:00:000-30:00:000',    '30:00:000-40:00:000', '40:00:000-50:00:000', '50:00:000-00:00:000']
listNumbers = ['0.01', '0.02', '0.03', '0.05', '0.05', '0.03'] 

and I want:

plt.plot(listHours, listNumbers)
plt.show()

Matplotlib is not accepting this listHours ("ValueError: invalid literal for float(): 00:00:000-10:00:000") when I use ticks I get this error: "TypeError: float() argument must be a string or a number" I don't know if it's because I'm using this ticks thing wrong or whatever... any idea? I'm kinda frustrated here.

Thanks already.

Answer 1

You can use the xticks command to do so. See the following snippet -

>>> listHours = ['00:00:000-10:00:000', '10:00:000-20:00:000', '20:00:000-30:00:000','30:00:000-40:00:000', '40:00:000-50:00:000', '50:00:000-00:00:000']
>>> listNumbers = ['0.01', '0.02', '0.03', '0.05', '0.05', '0.03']
>>> listNumbers = [float(elem) for elem in listNumbers]  # Convert to a list of floats.
>>> plt.plot(listNumbers)
>>> plt.xticks(range(len(listHours)), listHours, size='small')
>>> plt.show()

It gives you a figure like this