BarSpacing

is an option to BarChart and related functions that controls the spacing between bars and groups of bars.

Details

	Automatic	automatically determine spacing
	None	use no spacing between bars
	Tiny,Small,Medium,Large	use preset automatic spacings
	s	use explicit spacing s between bars
	{s_b,s_g}	use s_b between individual bars and s_g between groups

In BarChart and BarChart3D the spacing s is in fractions of the width of a bar.
In RectangleChart and RectangleChart3D the spacing s is in ordinary coordinates.

Use automatically determined spacing between bars:

Use no spacing:

Use symbolic presets:

Use explicit spacing between bars:

Use explicit spacing between bars and groups of bars:

Position bars within a group with the bars separated by a width of 0.5 and no space between groups:

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