Published figures, rebuilt from the data underneath them
Every redraw lists what changed and links to the source, because a figure you cannot check is just a picture.
Mean and standard error
Every measurement
The same 342 measurements, twice
Bars of the group mean, and the individual birds those bars were summarising. Both are drawn on the identical axis from the same file. Every bird sits in the top fifth of the space the bars fill.
From A figure is an instrument, which is about what that difference does to a reader.
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Guide
SEM or SD?
One of them describes your animals and one describes your confidence in an average. Collecting more animals shrinks only the second.
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Guide
Jet
The rainbow colourmap puts its brightest colour two thirds of the way up, and its top and bottom are nearly the same shade of dark.
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Guide
What your plotting library gives you by default
matplotlib's second and third colours are the same colour to a red-blind reader. Three conditions is the most ordinary figure there is.
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Guide
What your journal checks, and what it does not
Two publishers, the same 300 dpi, and only one of them asks whether anyone can tell your colours apart.
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Interactive
A figure is an instrument
Which chart you choose changes what people take away. That is a measured effect, not a matter of taste.