title: How can I plot ca. 20 million points as a scatterplot?
body: <p>I am trying to create a scatterplot with matplotlib that consists of ca. ca. 20 million data points. Even after setting the alpha value to its lowest before ending up with no visible data at all the result is just a completely black plot.</p>
  
  <pre><code>plt.scatter(timedPlotData, plotData, alpha=0.01, marker='.')
  </code></pre>
  
  <p>The x-axis is a continuous timeline of about 2 months and the y-axis consists of 150k consecutive integer values. </p>
  
  <p>Is there any way to plot all the points so that their distribution over time is still visible?</p>
  
  <p>Thank you for your help.</p>