[R] Palettes {grDevices} - wrong number of colors returned?

[Sigbert Klinke]

Hi,

I would have expected that I get always 3 colors as result which is not 
true:

hcl.colors(3, alpha=c(0, 0.5, 1))     # 3 colors

rainbow(3, alpha=c(0, 0.5, 1))        # 3 colors

heat.colors(3, alpha=c(0, 0.5, 1))    # 3 colors

terrain.colors(3, alpha=c(0, 0.5, 1)) # 6 colors

cm.colors(3, alpha=c(0, 0.5, 1))      # 6 colors

topo.colors(3, alpha=c(0, 0.5, 1))    # 9 colors

R-Version and platform:
R version 4.2.2 Patched (2022-11-10 r83330) -- "Innocent and Trusting"

Copyright (C) 2022 The R Foundation for Statistical Computing

Platform: x86_64-pc-linux-gnu (64-bit)

Bug or feature?

Sigbert

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