I'm using arrayToDataTable to convert set of rows & columns to Table
format.
I need to build a pie chart using two columns of the table but pie
chart should be a after performing an aggregation function on the rows
of the "table".
Ex: Table1
var data = google.visualization.arrayToDataTable([
['YEAR','Country','State','Population'],
['2011','USA','CA',2.5],
['2011','USA','NY',3.4],
['2011','USA','PA',1.2],
['2011','CANADA','ONTARIO',0.4],
['2011','CANADA','QUEBEC',0.2],
]);
I want pie chart to be drawn for Country & Population using this data
(Table2):
Country, Population
USA, 7.1
CANADA, 0.6
Could someone explain how to create Table2 from Table1 dynamically for
the pie chart?
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