lecture-8 advanced graphics in R

lecture-8 advanced graphics in R - Advanced Graphics in R...

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Unformatted text preview: Advanced Graphics in R 196 Through packages, the R graphics system may be extended in a number of powerful ways. The Graphics taskview at CRAN documents the available packages. Well focus on - Fne control of color- making 3D scatterplots and surfaces You will need R packages colorspace , dichromat , and scatterplot3d , all of which are available on CRAN. 197 The palette function shows/changes the default palette. - Called with no arguments, it shows the palette.- Called with a character vector of colors (either names or RGB levels), it changes the palette. > palette() [1] "black" "red" "green3" "blue" "cyan" [6] "magenta" "yellow" "gray" 198 There are several built-in functions for generating palettes: rainbow terrain.colors heat.colors These are all built on the hsv parameterization of the colorspace. 199 A simplifed summary oF human color perception... The space oF human color perception is three dimensional. We can view the space as consisting oF two axes, yellow-blue and green-red, as well as a brightness axis....
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lecture-8 advanced graphics in R - Advanced Graphics in R...

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