我有一个自定义颜色托盘，我想将其用于 geom_bar 图。但是我也想手动设置这些颜色的亮度。当我在 ggplot 代码中同时运行 scale_fill_manual() 和 scale_fill_hue() 函数时，出现以下错误：
Scale for 'fill' is already present. Adding another scale for 'fill', which will replace the existing scale.
这似乎是一个“scale_fill”函数覆盖了另一个。在 scale_fill_manual() 函数中设置亮度似乎是合乎逻辑的，例如：
scale_fill_manual(values=cbPalette, l = 55)
但这不起作用。
在此先感谢您的帮助！这是未正确设置亮度的图形版本（以下是数据和代码）：
> Sex_age_survival
Sex age estimate lcl ucl
Female Adult 0.6826927 0.62881160 0.7320849
Male Adult 0.6941044 0.64680030 0.7376429
Female Juvenile 0.4062997 0.27163540 0.5566986
Male Juvenile 0.5270193 0.39998360 0.6506502
Female Chick 0.4296511 0.30855270 0.5394149
Male Chick 0.3987215 0.25969601 0.5252046
Salina Nest 0.5643484 0.52096067 0.6054399
Marsh Nest 0.1434720 0.04435806 0.3013856
limits <- aes(ymin = lcl, ymax = ucl)
dodge <- position_dodge(width=0.7)
cbPalette <- c("#E69F00", "#009E73", "#CC0000", "#0066CC")
Sex_age_plot2 <- ggplot(Sex_age_survival, aes(fill = Sex, x = age, y = estimate)) +
theme_bw() +
geom_bar(width = 0.7, position = "dodge", stat = "identity") +
geom_errorbar(limits, position = dodge, width=0.2, size = .6, shape = 1) +
theme(text=element_text(size = 16, family = "Candara"),
legend.text = element_text(size = 30),
legend.title = element_text(size = 30),
axis.title.x = element_text(size = 35, vjust = -0.1),
axis.text.x = element_text(size = 30),
axis.title.y = element_text(size = 35, vjust = 1.2),
axis.text.y = element_text(size = 30),
panel.grid.major = element_blank()) +
xlab("Life stage") +
ylab("Apparent survival (± 95% CI)") +
scale_y_continuous(limits = c(0, 1)) +
scale_fill_hue(l = 55) + # seems like I cannot run this in addition to scale_fill_manual()
scale_fill_manual(values=cbPalette) # seems like I cannot run this in addition to scale_fill_hue()
Sex_age_plot2
