You can specify and format data points or value markers in line charts. Data points represent series values for each category on the y-axis. Value markers represent statistically significant values, such as open, high, low, and close values.
You can also add markers at other positions on the chart. For more information, see Add a Marker to a Chart.
You cannot show value markers under the following conditions:
The Data points option is selected.
The configuration of the line chart is stacked or 100 percent stacked.
The Line property is set to No, creating a point chart.
Click under Series in the chart template to view the line properties.
In the Properties pane, under General, double-click the Show Data Points property to show data points or value markers:
To show or format data points, click Data points and specify the point shape and point size.
The point color is defined by the chart palette. For more information, see Customize the Colors of a Chart.
To show or format value markers, click Value markers and specify the markers to show. For each marker, specify the shape and marker size. Click the Color link to change the marker color.
Tip: To remove all data points and value markers, in the Show Data Points dialog box, select None.