See more related video:Labeling Data Plots Based on Data in any Worksheet Column
The Text tool and the Annotation tool available from the Tools toolbar can be used to add specific labels to a plot. In addition to these tools, Origin provides the methods described below:
You can use the Label tab of the Plot Details dialog to add labels to all points of a data plot. This Label tab can be found on the right side of the Plot Details dialog when a data plot icon is selected on the left panel.
To add labels for a data plot:
You can customize a single data label in your graph by pressing CTRL and clicking on the label. Use Format toolbar buttons to customize your label. See this topic for details.
For help with specific Label tab controls, see:
Values in both Origin and Excel worksheet columns can be used to label data points in a graph. This is an older method and is mainly provided for backward compatibility; unless you are working with older Origin projects which use this feature, you should use the labeling method described above.
To use values in an Origin worksheet column as labels while plotting, the column containing the label values must be:
To use values in an Excel worksheet column as labels, use the Select Data for Plotting dialog box.