title: loop of many regression and report coefficients
body: <p>Please show the loop of regression of each companies mean and max like this and report coefficients:</p>
  
  <pre><code>lm(colmean$MSFT~colmax$MSFT)
  lm(colmean$AAPL~colmax$AAPL) 
  lm(colmean$GOOGL~colmax$GOOGL)
  
  Data:
  &gt; head(colmax)
        MSFT     AAPL   GOOGL
  1 21.23999 5.201410  97.810
  2 21.38546 6.096268 105.430
  3 20.64884 6.019837  94.405
  
  &gt; head(colmean)
        MSFT     AAPL     GOOGL
  1 21.11067 4.975767  94.04000
  2 20.91273 5.663524  97.50684
  3 20.05333 5.681336  90.57909
  </code></pre>