title: How to plot measurement-matrice
body: <p>I have finished my maesurements for my thesis and now I want to plot the matrice of pressure-combinations I measured. I would have different end-pressures for one suction-pressure, so for example:</p>
  <pre><code>1_bar = np.array([1, 2, 3])
  2_bar = np.array([2, 3])
  3_bar = np.array([])
  4_bar = np.array([1, 2, 3, 4])
  5_bar = np.array([1])
  6_bar = np.array([])
  7_bar = np.array([1, 2])
  </code></pre>
  <p>What I want is a plot that looks like this:
  <a href="https://i.stack.imgur.com/fVFRx.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/fVFRx.jpg" alt="Plot of measurment-matrice" /></a></p>
  <p>Basically i dont know how to create a matrice of this kind and then how to plot it. I hope someone can has the time to help me, I know this is a fairly basic question.</p>
  <p>With kind regards and thank you in advance</p>