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Get the sum of a column in a google chart table

Any method that can get sum

, avg

, count

data in the column google chart table

? I want to show metadata

this table from a table.

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2 answers


Alternatively, if you have a DataTable that you manually enter, you can do the same as:



function drawVisualization() {
  // Create and populate the data table.
  var data = google.visualization.arrayToDataTable([
    ['x', 'Cats'],
    ['A',   1],
    ['B',   2],
    ['C',   4],
    ['D',   8],
    ['E',   7],
    ['F',   7],
    ['G',   8],
    ['H',   4],
    ['I',   2],
    ['J',   3.5],
    ['K',   3],
    ['L',   3.5],
    ['M',   1],
    ['N',   1]
  ]);

  // Create an Array to hold column data
  var tmpColumn = new Array();

  // Add each data value to the array with push()
  for(var i = 0; i < data.getNumberOfColumns(); ++i) {
    tmpColumn.push(data.getValue(i, 1));
  }

  // Use built-in Google Functions on the array
  alert(google.visualization.data.avg(tmpColumn));
  alert(google.visualization.data.sum(tmpColumn));
  alert(google.visualization.data.count(tmpColumn));
}
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You may be looking for something like this:

var query = new google.visualization.Query(DATA_SOURCE_URL);
query.setQuery('select dept, sum(salary) group by dept');
query.send(handleQueryResponse);


DATA_SOURCE_URL

can match the url of the Google Chart data source.

From: https://developers.google.com/chart/interactive/docs/querylanguage

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