Use these options to make formatting changes to the X or Y error bars that are displayed for data series in your chart.

Display

DirectionBoth Shows the actual data point value plus and minus a specific error amount. Minus Shows the actual data point value minus a specific error amount. Plus Shows the actual data point value plus a specific error amount.

End StyleNo Cap Display error bars without end caps. Cap Displays error bars with end caps.

Error amount

Fixed value Uses the constant value that you specify in the Fixed value box to calculate the error amount for each data point and displays this error amount in the same height for Y error bars and the same width for X error bars.

Percentage Uses the percentage that you specify in the Percentage box to calculate the error amount for each data point as a percentage of the value of that data point. Y error bars and X error bars that are based on the percentage of the value of the data points vary in size.

Standard deviation(s) Displays the standard deviation for the plotted values that is calculated for each data point and then multiplied by the number that you specify in the Standard deviation(s) box. The resulting Y error bars or X error bars are the same size and do not vary with each data point.

Standard error Displays the standard error amount for all plotted values. All data points in the series display the error amount in the same height for Y error bars and the same width for X error bars.

Custom Uses values in a worksheet range that you specify as error amounts. Using this option, you can include formulas in the worksheet range when calculating the error amounts.