designate_axes: Designate axes parts.
In inventionate/TimeSpaceAnalysis: Statistical tools for time-space analysis

Designate axes parts.

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designate_axes(x = NULL, y = NULL, designation = c("left/bottom",
  "right/top"), rotate = FALSE, size = 5, fontface = "bold.italic",
  alpha = 1)

`x`	coordinate of the axes designation. The value will automatically mirrored.
`y`	coordinate of the axes designation. The value will automatically mirrored.
`designation`	character vector with the two designation titles.
`rotate`	designate x (FALSE) or y axis (TRUE).
`size`	size of the designation titles.
`fontface`	fontface.
`alpha`	font alpha.