Question

I am trying to create a bar graph using the matplot library but I cant figure out what the arguments are for the function.

The documentation says bar(left, height), but I don’t know how to put in my data [which is a list of numbers called x] in here.

It tells me that the height should be a scalar when I put it as a number 0.5 or 1, and doesn’t show me the error if the height is a list.

Answer 1

A simple thing you can do:

plt.bar(range(len(x)), x)

left is the left ends of the bars. You’re telling it where to place the bars on the horizontal axis. Here’s something you can play around with until you get it:

>>> import matplotlib.pyplot as plt
>>> plt.bar(range(10), range(20, 10, -1))
>>> plt.show()