EULERR-package Venn-图表RGB-colors

Question

Euler包是为数不多的几个包之一，它可以使圆的面积发生变化的维恩图。

我有以下代码，它使我成为一个漂亮的维恩图：

tiff("test.tiff", units="in", width=7, height=5, res=600)
fit <- euler(c(A = 1657, B = 105, "A&B" = 65, C = 407, 
"A&C" = 657, "B&C" = 138, "A&B&C" = 228))
plot(fit, fills = c("skyblue", "plum", "sandybrown"), quantities = TRUE)
dev.off()

但是，我想使用RGB代码来确定颜色：

tiff("test.tiff", units="in", width=7, height=5, res=600)
fit <- euler(c(A = 1657, B = 105, "A&B" = 65, C = 407,
 "A&C" = 657, "B&C" = 138, "A&B&C" = 228))
plot(fit, fills = c("#CDCDCD", "#5EACCAB", "#E6A176"), quantities = TRUE)
dev.off()

这会给我一个错误："Error in grDevices::col2rgb(rcol_in)：invalid RGB specification“

这个包可以使用RGB码指定颜色吗？我注意到X11颜色名称(https://en.wikipedia.org/wiki/X11_color_names)工作正常，但它们的范围很窄。

Answer 1

Color #5EACCAB不存在。听着，我改了：

fit <- euler(c(A = 1657, B = 105, "A&B" = 65, C = 407, 
                "A&C" = 657, "B&C" = 138, "A&B&C" = 228))
plot(fit, fills = c("#CDCDCD", "#666666", "#E6A176"), quantities = TRUE)

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P.S.如果你经常使用颜色，我建议你使用RColorBrewer包。