index.html

## readme.mkd

      
        

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              readme.mkd
            
          
        
      
    
  
    Simples example of converting a csv string into a nested array.

See it running at http://bl.ocks.org/3053667

See https://gist.github.com/3053705 for example that uses a file rather than a string for the csv.

  

  

## index.html
<html>
	<head>
		<title>D3 Simple Nest and CSV Example</title>
		<script src="http://d3js.org/d3.v2.js"></script>
    </head>

    <body>

    <script>

        var csv_data="group, date, time\none, 2012-01-01, 4\none, 2012-01-01,6\ntwo, 2012-01-06,3\nthree, 2012-01-01, 4\nthree, 20120-01-05, 3\n";

        var array_data = d3.csv.parse(csv_data);

        var nested_data = d3.nest()
            .key(function(d) { return d.group; })
            .entries(array_data);

        console.debug(nested_data);
        alert(JSON.stringify(nested_data));

        /* expect
        [{"key":"one",
          "values":[{"group":"one"," date":" 2012-01-01"," time":" 4"},
                    {"group":"one"," date":" 2012-01-01"," time":"6"}]},
         {"key":"two",
          "values":[{"group":"two"," date":" 2012-01-06"," time":"3"}]},
         {"key":"three",
          "values":[{"group":"three"," date":" 2012-01-01"," time":" 4"},
                    {"group":"three"," date":" 20120-01-05"," time":" 3"}]}]
        */

    </script>

    </body>
</html>