While dual-axis plots can be useful to have, there are some strong arguments from the data visualization community about how they are sub-optimal. <a href="https:&#x2F;&#x2F;www.google.com&#x2F;url?sa=t&amp;rct=j&amp;q=&amp;esrc=s&amp;source=web&amp;cd=1&amp;ved=0CB0QFjAAahUKEwi20Ym9p5jJAhWLbT4KHWUzBBo&amp;url=https%3A%2F%2Fwww.perceptualedge.com%2Farticles%2Fvisual_business_intelligence%2Fdual-scaled_axes.pdf&amp;usg=AFQjCNEo-chqvKnQm6dWHefPBL-nU3BT2g&amp;sig2=-W0tli53hxhaMO9zHXLFvg&amp;cad=rja" rel="nofollow">https:&#x2F;&#x2F;www.google.com&#x2F;url?sa=t&amp;rct=j&amp;q=&amp;esrc=s&amp;source=web&amp;c...</a>