title: Calling a list of tickers in quantmod using R
body: <p>I want to get some data from a list of Chinese stocks using quantmod. </p>
  
  <p>The list is like below:</p>
  
  <p><code>002705.SZ -- 002730.SZ</code> (in this sequence, there are some tickers matched with Null stock, for example, there is no stock called 002720.SZ)</p>
  
  <pre><code>300357.SZ -- 300402.SZ
  603188.SS
  603609.SS
  603288.SS
  603306.SS
  603369.SS
  </code></pre>
  
  <p>I want to write a loop to run all these stocks to get the data from each of them and save them into one data frame.</p>