By |Published On: May 10, 2025 at 3:30 pm PDT|Last Updated: May 10, 2025 at 3:33 pm PDT|

Horizontal Bar with “From Zero” Error and Significance Markers

This tutorial will show how to use the TechGraph Editor to display “From Zero” error bars and significance markers for two bar graphs in horizontal format.  Shown below are the settings in the Data Table and the Edit Chart used to create this chart.        

Data Table – Sample data can easily be changed or replaced by pasting data from an external worksheet.

  • Graph Type is Bar.
  • X Data Type is Label. Labels for the X Axis are entered in X Data column. Note that superscript tags (<sup></sup>) are supported in labels.
  • Graph A and Graph C contain the mean values.
  • Graph B contains the corresponding error values for Graph A.  Graph D contains the error values for Graph C. For this example, significance markers will display next to the error bar cap for negative error values.

Note:   Click on the “Help” button on the toolbar to find out how to edit, delete, copy and paste in the Data Table.

Edit Chart – A set of icons (Titles, Settings, X Axis, Y Axis, Curves and Error Bars) to change the settings and appearance of the chart.      

     Settings  – specify the color and pattern for Graph A and Graph C bar.         

  • Click on the “Black rectangle” (Graph Style) to show the bar Style for Graph A pop-up.   You can change the Color and Pattern for Graph A bar.   Click on Apply to save the changes. Repeat this step for Graph C.
  • Checkbox for Horizontal Bar is checked.
  • Click on Bar Format. Enter “80” in Width to create a small gap between bars.

 

     Y axis

  • Enter values in Minimum, Maximum and Major Div to set the Y Axis scale and divisions. Leave these values empty for automatic scaling.
    • The values in this example are Minimum = 0, Maximum = 100 and Major Div = 5.

 

     Curves & Error Bars 

  • Select “Error Bar On” from Error Bar list for Graph A and Graph C.
  • Click on “From Zero” (Error Bar Format)  for Graph B. For this example, “From Zero“ is selected from the Error Format  Enter “2” in Significance Level. Negative error values in Graph B will display with two significance markers. Color ( “Black”) is selected for the error bar color.   Use the Thicknessselection list to change the line style. Click on Apply to save the changes
  • Repeat the above step for Graph D except you should enter “3” in Significance Level.

     Edit Chart Toolbar Options

  •  Print Chart prints your chart.
  •  Download Image downloads your chart as an SVG(Scalable Vector Graphics) file or image file(PNG, JPEG, TIF, PDF).
  •  Drawing Objects customize your chart with labels, lines, arrows, circles, images, and logos.

 Getting Started: