Welcome; Videos and Worksheets; Primary; 5-a-day. To create the frequency polygon: Right-click on the chart, then click on Select Data. So you plot the quantity or frequency of data in different categories. The Google Sheets graph is built, the chart editor is displayed. How to Reorder Factor Levels in R (With Examples). One can make use of the information that is available in a frequency distribution table for drawings of these graphs. FrequencyPolygon(