Plot 2-dimensional NumPy array using specific columns

Question

I have a 2D numpy array that\'s created like this:

data = np.empty((number_of_elements, 7))

Each row with 7 (or whatever) floats represents

Answer 1

Not sure exactly what you are looking for in the plot, but you can slice 2D arrays like this:

>>> a
array([[0, 1, 2],
       [3, 4, 5],
       [6, 7, 8]])
>>> a[:,1]
array([1, 4, 7])
>>> a[:,1:3]
array([[1, 2],
       [4, 5],
       [7, 8]])

Then some matplot to take care of the plotting. If you find what you are looking for at the Matplotlib Gallery I can help you more.