Barrick Lab Style Guide for Figures

General Workflow

  • Use a program (Excel, R, CIRCOS, matplotlib, etc.) to graph your data.
  • Output a file in a vector graphics file format (SVG or PDF).
  • Integrate the graphs into an annotated figure in Adobe Illustrator.

As an example...

This is a figure created in Microsoft Excel of two sets of fitness measurements.

This is the final figure created by importing this graph into Adobe Illustrator. Notice:

  • The line widths of error bars and ticks have been adjusted for better visibility.
  • Shadow effects have been removed.
  • The legend has been expanded.
  • Horizontal lines showing the averages of each time series have been added.
  • The names have been changed from abstruse strain numbers into simple numbering.
  • A panel describing the overall experiment has been added.

General Guidelines for Figures

  • Fonts
    • Always use Helvetica or Arial.
    • Avoid font sizes smaller than 6 pts as much as possible.
    • Generally label figure subparts with capital bold letters of 12-14 pt size.
  • Use CMYK color. This is what journals use for print copies.
    • Blues, in particular, look much different than in RGB space.
  • Generally, DO NOT use:
    • Shadows, halos, etc., or other shading effects. Be aware that this is the default in many Microsoft programs.
    • Cross-hashing. There can be odd effects when printing close cross-hashes.
    • More than one kind of dashed line.

What type of graph should I use for my data?

  • Types of data
    • Relative fitness
    • Expression levels
    • Mutation rates

  • Don't use bar graphs when a log scale is the natural scale.

Using Excel to Create Graphs

  • Differences from Excel defaults
    • Remove black box from the outside of the graph.
    • Remove horizontal dividing lines.
    • Outline graph area and make axes use 1 pt black lines.
  • Change the default font to Arial or Helvetica before exporting. Other fonts (including the Calibri default!) can change into random symbols when loading into Illustrator.

Creating Figures in Adobe Illustrator

  • Imported graphs.
    • Be careful to only perform isomorphic transformations on imported graphs. Obviously it is important to preserve the exact locations of ticks relative to data.
    • Since you can determine the exact pixel locations of what you draw in Adobe Illustrator, you can calculate exactly where to place extra features in the context of your graph.
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Topic revision: r2 - 28 Aug 2012 - 17:53:33 - Main.JeffreyBarrick
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