title: R Markdown File Is Not Giving Me the Output
body: <p>I have the following code:</p>
  
  <pre><code>```{r}
  library(sqldf)
  library(caret)
  library(ROCR)
  
  turnover = read.csv("active_20120630.csv")
  ```
  </code></pre>
  
  <p>When I run the code in R Studio, everything is fine. But when I clicked <code>Knit HTML</code>, I got the following errors after the last line <code>turnover = read.csv("active_20120630")</code>:</p>
  
  <pre><code>## Warning: cannot open file 'active_20120630.csv': No such file or directory
  ## Error: cannot open the connection 
  </code></pre>
  
  <p>Why I can run them in the console but not in the HTML output?</p>
  
  <p>Thanks</p>