我想使用看起来有点常见的色标(看看here https://stackoverflow.com/questions/8421536/a-true-heat-map-in-r and here http://tctechcrunch2011.files.wordpress.com/2011/05/sf_eta_heatmap2-png-1.jpg),但我在任何地方都找不到它。它不是 Rainbow() 或 heat.colors() 或任何其他here http://stat.ethz.ch/R-manual/R-devel/library/grDevices/html/palettes.html; and http://colorbrewer2.org/ http://colorbrewer2.org/也不显示它(或者至少我找不到它)。有什么帮助吗?如果它包含在基本包中,那就更好了!
看起来像Matlab 的 Jet 颜色 http://www.mathworks.co.uk/help/matlab/ref/colormap.html,它们被复制到?colorRampPalette
:
## 'jet.colors' is "as in Matlab"
## (and hurting the eyes by over-saturation)
jet.colors <-
colorRampPalette(c("#00007F", "blue", "#007FFF", "cyan",
"#7FFF7F", "yellow", "#FF7F00", "red", "#7F0000"))
举个例子:
filled.contour(volcano, color = jet.colors, asp = 1, nlevels=100)
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