title: How can I create a linear regression line on a scatterplot with R?
body: <p>I tried abline function to create a linear regression line on a scatterplot.</p>
  
  <pre><code>x= c (1.0325477, 0.6746901, 1.0845737, 1.1123872, 1.1060822, 0.8595918, 0.8512941, 1.0148842, 1.0722369, 0.9019220 , 0.8809147, 1.0358256, 0.9903858, 1.0715174 , 1.1034405, 1.0143966,0.9802365, 0.7177169 , 0.9190783, 0.8408701 ) 
  y= c (0.8550177, 0.8352162 ,1.0236998, 1.1071665, 0.6768144, 0.8449983 ,0.7616483, 0.8259199, 1.1539598, 1.4125006, 1.0511816, 0.9366184, 1.4101268, 1.2937913, 1.4147219 ,1.2943105 ,0.7859749, 0.6689330, 0.6940164, 0.8093392)
  plot(x,y) 
  abline(lm(y ~ x))
  Error in int_abline(a = a, b = b, h = h, v = v, untf = untf, ...) : 
   plot.new has not been called yet
  </code></pre>
  
  <p>Any suggestions please</p>