You can set or edit the appearance for a column using the Options tab. View the tab by double-clicking the column name in the data table or by choosing Column Options from the Data menu.
A point symbol is a distinctively-shaped marker placed on top of a data point. Point symbols can be used to identify runs or sensors, or simply to make points more visible. Point symbols can be turned on and off in the Graph Options dialog.
Style and Size
Choose the shape, fill, and size of the point symbols.
Display and Use Column
Set how many point symbols will be displayed on the graph. You may want to reduce the number of point symbols when there is a large amount of data. Auto point symbol mode will place point symbols on all time-based points if there are fewer than eight points; otherwise there will be about eight point symbols distributed across the graph. Non-time-based data will have every point marked with a point symbol in Auto mode.
Choose a color for the graph line, point symbols, and the column in the data table.
Set the displayed precision of values in the data table to either Decimal Places or Significant Figures.
Select a number from the drop-down menu for either decimal places or significant figures. Selecting Automatic, will apply the most recently added number of decimal places to all previous and subsequent cells. For example, if Decimal Places and Automatic are selected and you enter 3, 4.5, 6.2, the column will display all numbers to 1 decimal place. However if you enter a number with more decimal places (4.56), the column will then display two places. The display thus uses the number of decimal places necessary to show the value entered (so far) with the largest number of decimal places. Note: Automatic only applies for Events with Entry mode and manual columns, and only if Decimal Places has been selected.
If the option is set Decimal Places, you can check Use Scientific Notation to display the values in scientific notation (for example, 87.1 would be displayed as 8.71E+001).
Error bars can be displayed for each point on a graph in the horizontal and/or vertical directions. You can choose to have the errors calculated as a relative or absolute error for each point, or you can set a custom error for each point by creating a column that contains a relative or absolute error value for each point. More information about setting up error bars is available here.