[英]change colour in an R bar plot
这是我的数据集的可重复性结构:
structure(list(type_de_sejour = c("Hospitalisé", "Hospitalisé",
"Hospitalisé", "Hospitalisé", "Hospitalisé", "Hospitalisé"
), site = c("FRA", "FRA", "FRA", "FRA", "FRA", "FRA"), specialite = c("ANESTHESIE
REANIMATION",
"Autres", "CARDIO VASCULAIRE", "CHIRUGIE CARDIAQUE", "CHIRURGIE GENERALE ET VISCERALE",
"CHIRURGIE THORACIQUE et VASCULAIRE"), proportion = c(0.000844059928254906,
0, 0.357986917071112, 0.0880987550116058, 0.00105507491031863,
0.0742772736864317), annee = c("2019", "2019", "2019", "2019",
"2019", "2019")), row.names = c(NA, 6L), class = "data.frame")
这是我的 plot 的代码。 它给了我一个带有彩虹色的 plot,因此很难区分堆叠条形图(颜色渐变)的不同部分。 如何更改颜色,使其既美观又易于阅读?
ggplot(NCN_hosp, aes(x = annee, y = proportion, fill = specialite)) +
geom_bar(stat = "identity") +
facet_wrap(~site) +
theme(plot.title = element_text(hjust = 0.5, vjust = 1, size = 8),
axis.text.x = element_text(angle = 90, hjust = 0.5, size = 5),
axis.text.y = element_text(size = 5),
legend.text = element_text(size = 5),
legend.key.height = unit(0.1, "cm"),
panel.grid.major = element_blank(),
panel.grid.minor = element_blank())+
scale_y_continuous(labels = scales::percent)
您正在使用(ggplot2)。 有了这个 package Colors 由这个变量定义,包含到 plot 代码中。
col=c("black", "red","blue","cyan")
例如,此代码生成具有多个输入和不同 Colors 的 plot。
plot(train_data["2019",
c("RV", "pred_HAR_RV","pred_EN_HAR_RV","pred_EN_HAR_RV_RIDGE")],
col=c("black", "red","blue","cyan"),
lwd = c(1,1),
main = "Actual vs predicted RVs",
legend.loc = "topleft")
对于这类问题,您应该直接参考 package 的文档。 最好的。
你可以使用这个: scale_fill_manual(values=c("#199999","#269F00","#36B4E9","#A6B4E1","#51B4E1","#F69F10"))
或者这个: scale_fill_manual(values=c("red","green","blue","yellow","orange","gray20","gray40"))
也就是说,您可以使用十六进制代码或名称,如果您搜索也有包,但是您将使用的 colors 当然是您选择的主题。 这个页面可能会给你一些关于 colors 使用的想法
ggplot(NCN_hosp, aes(x = annee, y = proportion, fill = specialite)) +
geom_bar(stat = "identity") +
facet_wrap(~site) +
theme(plot.title = element_text(hjust = 0.5, vjust = 1, size = 8),
axis.text.x = element_text(angle = 90, hjust = 0.5, size = 5),
axis.text.y = element_text(size = 5),
legend.text = element_text(size = 5),
legend.key.height = unit(0.1, "cm"),
panel.grid.major = element_blank(),
panel.grid.minor = element_blank())+
scale_y_continuous(labels = scales::percent)+
scale_fill_manual(values=c("#199999","#269F00","#36B4E9","#A6B4E1","#51B4E1","#F69F10"))+
scale_fill_manual(values=c("red","green","blue","yellow","orange","gray20","gray40"))
当然,这取决于您想要什么,但您也可以使用标准 colors 调色板,例如scale_fill_brewer
:
library(ggplot2)
ggplot(NCN_hosp, aes(x = annee, y = proportion, fill = specialite)) +
geom_bar(stat = "identity") +
scale_fill_brewer() +
facet_wrap(~site) +
theme(plot.title = element_text(hjust = 0.5, vjust = 1, size = 8),
axis.text.x = element_text(angle = 90, hjust = 0.5, size = 5),
axis.text.y = element_text(size = 5),
legend.text = element_text(size = 5),
legend.key.height = unit(0.1, "cm"),
panel.grid.major = element_blank(),
panel.grid.minor = element_blank())+
scale_y_continuous(labels = scales::percent)
请查看此站点以获取一些不错的选项来更改您的 colors 吧。
由代表 package (v2.0.1) 于 2022 年 8 月 10 日创建
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.