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By |Published On: February 21, 2024 at 11:58 am PST|Last Updated: February 21, 2024 at 11:58 am PST|

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 on a bar graph.  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 contains the mean values.
  • Graph B contains the corresponding error values. For this example, significance markers will display on top of 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 bar.         

  •  Click on the “Crimson 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.

     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.
  • 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

         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: