Helper function allowing greater control over the steps in a color palette. Source: http://menugget.blogspot.com/2011/11/define-color-steps-for- colorramppalette.html#more
color.palette(steps, between = NULL, ...)
Vector of colors to change use in the palette
Steps where gradients change
Additional arguments of colorRampPalette
Color palette
# NOT RUN {
color.palette(c("darkblue", "white", "darkred"),
c(2, 2))
# }
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