title: scatter plot : change distance in X-axis with multiple variable
body: <p>I want to plot some numeral Data with scatter plot. I used the following code to plot the Data as a scatter with using the same axes for the different variables.</p>
  <pre><code>library(car)
  data(&quot;Anscombe&quot;)
  mydat &lt;- melt(Anscombe,&quot;urban&quot;)
  ggplot(mydat,aes(value,urban ))+geom_point() + 
       facet_grid(.~variable)+geom_smooth(method=&quot;lm&quot;, se=F)
  </code></pre>
  <p>here is the plot, and the range of x-axis value are the same for three variables. I can not see the points of variable educations very well.
  <a href="https://i.stack.imgur.com/4hN3Z.png" rel="nofollow noreferrer">plot1</a></p>
  <p>so i try to change the range of x-axis. Below are the code.</p>
  <pre><code>ggplot(mydat,aes(value,urban ))+geom_point() + 
  facet_grid(.~variable)+ geom_smooth(method=&quot;lm&quot;, se=F)+
  coord_cartesian(xlim = c(0,450), ylim = NULL, expand = TRUE)
  </code></pre>
  <p>Now the I can see the value of variable education. but the value of income is gone, because the value of  income is &gt; 450.
  <a href="https://i.stack.imgur.com/iEMxb.png" rel="nofollow noreferrer">plot2</a></p>
  <p>how can i change the x-axis value of each variables instead of change all? I would be grateful if anybody can help me?</p>