By Sahil Srinivas
function createBarChart() {
var sheet = SpreadsheetApp.getActiveSpreadsheet().getActiveSheet();
var chartBuilder = sheet.newChart();
var range= "";
var chart = chartBuilder
.addRange(sheet.getRange(range))
.setChartType(Charts.ChartType.HISTOGRAM)
.setPosition(2, 2, 0, 0) // Position of the chart in the sheet
.setOption('title','SGPA Bar Chart') // Chart title
// Y-axis title
.build();
sheet.insertChart(chart);
}