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By |Published On: January 10, 2023 at 7:34 am PST|Last Updated: January 10, 2023 at 7:34 am PST|

Survival Curve with Censored Points as Circles

This tutorial will show how to use the TechGraph Editor to plot data from a survival table using connecting lines in a staircase pattern.  In this example, survival probability values (data in Graph A) are entered as fractions between 0 and 1. Enter censored points in Graph B to be displayed as circles. 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 Combo.
  • X Data Type is Number.  X Data column contains the X values.
  • Graph A series is set to Line and it contains the survival probability values.
  • Graph B series is set to Scatter and it contains the censored points.

     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, thickness and type  for  Graph A line.         

  • Click on the “Crimson line” (Graph Style) to show the line Style for Graph A pop-up.   You can change the Color, Thickness and Type for Graph A line.   Click on Apply to save the changes.
  • Click on the “Black circle” (Graph Style) to show the scatter Style for Graph B pop-up. You can change the Color, Type and Size for Graph B scatter. Click on Apply to save the charges.
  • Check Staircase Line and Ignoring Missing Data checkboxes.

     X Axis 

  • Enter values in Minimum, Maximum and Major Div to set the X Axis scale and divisions. Leave these values empty for automatic scaling.
    • The values for this example are Minimum = 0, Maximum = 20, Major Div = 4.

     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 for this example are Minimum = 0, Maximum = 1, Major Div = 5.

       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: