title: How to access a data element of a CSV file?
body: <p>I have a CSV file as my data set. I am using this code below to load it :</p>
  
  <p><code>var dataset = d3.csv("mydata.csv");</code></p>
  
  <p>My question is how I can have access to the elements inside the dataset var. As I checked, dataset variable is an object. Imagine I need the data element in row 4 and column 7, how can I get that piece of data?</p>