A line chart is a good way to display numeric data graphically, and is particularly useful when expressing changes in value between categories of data.
In the first column, enter a label to describe the data represented in the line chart. The remaining columns will each represent a line on the chart and must contain numeric data. You can have one or more of these columns to show on the chart. The data format for a line chart is the same as the data format for bar, area, and column charts.
You may also want to name each of the columns containing your data. If you do so, we’ll automatically detect these names and use them as labels for your data on the chart. You can also set or change this setting by selecting the checkbox that reads 'Use Row A as headers.'
You can also chart uncertainty about your data using boolean values.