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exactcolours
2009 May 21
1
Colour Schemes
...0
and upwards is white. Or you could have a multivariate mapping where
(x,y,z) -> (r,g,b,a) in complex and non-linear ways.
I see a set of factory functions that return colour scheme mapping
functions that map data to colours, so you'd do:
# unique colour for each factor level
scheme1 = exactColours(data$f,someColours) # data$f is a factor,
someColours is a vector of colour values
plot(data$x,data$y,col=scheme1(data$f))
# topological map colouring
scheme2 = continuousColours(list(-1000,"blue",0,"sandYellow",400,"grassGreen",1000,"rockBrown",1000,&q...