title: Plot a table with box size changing
body: <p>Does anyone have an idea how is this kind of chart plotted? It seems like <strong>heat map</strong>. However, instead of using color, size of each cell is used to indicate the magnitude. I want to plot a figure like this but I don't know how to realize it. Can this be done in R or Matlab?
  <img src="https://i.stack.imgur.com/ZmZUK.png" alt="enter image description here"> </p>