在R图中为相同级别的因子指定相同的颜色
我有一个闪亮的应用程序,有几个生动的可视化效果。用户可以选择几个产品,我希望每个产品在整个应用程序中都有相同的独特颜色。例如,我的一个想象可能是这样的:在R图中为相同级别的因子指定相同的颜色,r,plotly,R,Plotly,我有一个闪亮的应用程序,有几个生动的可视化效果。用户可以选择几个产品,我希望每个产品在整个应用程序中都有相同的独特颜色。例如,我的一个想象可能是这样的: plot_ly(df, x = variable, y=value, type = "bar", color = Product, hoverinfo = "text", colors = colpal, text = paste0(df$value,"%")) %>% layout(xaxis=ax, yaxis=yx, legend=
plot_ly(df, x = variable, y=value, type = "bar", color = Product, hoverinfo = "text",
colors = colpal, text = paste0(df$value,"%")) %>%
layout(xaxis=ax, yaxis=yx, legend=list(x=1, y = 0.5))
c("Product A" = "#00AADC", "Product B" = "#843532","Product C" = "#2C5481", "Product D" = "#CADFE1")
是否可以确保产品的第一级始终获得colpal的第一个值
在ggplot中,我认为可以通过如下指定颜色托盘来实现:
plot_ly(df, x = variable, y=value, type = "bar", color = Product, hoverinfo = "text",
colors = colpal, text = paste0(df$value,"%")) %>%
layout(xaxis=ax, yaxis=yx, legend=list(x=1, y = 0.5))
c("Product A" = "#00AADC", "Product B" = "#843532","Product C" = "#2C5481", "Product D" = "#CADFE1")
但这似乎并不是故意的
任何帮助都将不胜感激
编辑:示例数据集
Product variable value
1 Product A DDD 24
2 Product B DDD 22
3 Product C DDD 35
4 Product D DDD 19
5 Product A Brand attention 29
6 Product B Brand attention 27
7 Product C Brand attention 27
8 Product D Brand attention 18
因此,我希望产品A每次都采用相同的颜色。我不确定这是否可行,但作为替代方案,您可以按照建议使用ggplot2 如果下载plotly的开发版本(否则将无法使用),可以尝试以下方法:
devtools::install_github("ropensci/plotly")
library(plotly)
df <- read.table(text="
Product variable value
1 ProductA DDD 24
2 ProductB DDD 22
3 ProductC DDD 35
4 ProductD DDD 19
5 ProductA Brandattention 29
6 ProductB Brandattention 27
7 ProductC Brandattention 27
8 ProductD Brandattention 18",
header = TRUE)
p <- ggplot(data=df, aes(x=variable, y=value, fill=Product)) + geom_bar(stat='identity', position='dodge') + scale_fill_manual(values=c("ProductA" = "red", "ProductB" = "black","ProductC" = "blue", "ProductD" = "orange"))
ggplotly(p)
devtools::install\u github(“ropensci/plotly”)
图书馆(绘本)
df你也可以用plotly
制作一个调色板,但它并不太优雅,至少不像我过去做的那样。你应该开始了。下面是一个例子:
library(plotly)
# Create a colour map
# Note that using factors will mess this up
mapColours <- data.frame(x = c('Graham', 'Eric', 'Terry', 'John'),
colours = c('green', 'blue', 'red', 'orange'),
stringsAsFactors = FALSE)
# The full data to plot
df <- data.frame(x = mapColours$x,
y = c(7, 9, 5, 8),
stringsAsFactors = FALSE)
# Plot all categories
plot_ly(df, x = x, y = y, type = 'bar', color = x, colors = mapColours$colours)
# Now subset the data
dfSub <- subset(df, subset = x %in% c('Eric', 'John'))
dfSub <- droplevels(dfSub)
# Won't work as is, uses the wrong colours
plot_ly(dfSub, x = x, y = y, type = 'bar', color = x, colors = mapColours$colours)
# Need to get new colour map
mapColoursSub <- mapColours[match(dfSub$x, mapColours$x), 'colours']
# Use the subsetted colour map
plot_ly(dfSub, x = x, y = y, type = 'bar', color = x, colors = mapColoursSub)
编辑:
本例使用plotly
3.x.x。如果使用plotly
4.x.x或更高版本,此代码可能无法正常工作。有关更多详细信息,请参见此处:在普通绘图中使用“颜色”和“颜色”属性的更新(2019年底):
library(plotly)
df <- read.table(text="
Product variable value
1 ProductA DDD 24
2 ProductB DDD 22
3 ProductC DDD 35
4 ProductD DDD 19
5 ProductA Brandattention 29
6 ProductB Brandattention 27
7 ProductC Brandattention 27
8 ProductD Brandattention 18", header = TRUE)
df %>% plot_ly(x = ~variable, y = ~value, type = 'bar',
color = ~Product,
colors = c("ProductA" = "red",
"ProductB" = "black",
"ProductC" = "blue",
"ProductD" = "orange"))
library(plotly)
df%plot_ly(x=~变量,y=~值,类型='bar',
颜色=~产品,
颜色=c(“产品A”=“红色”,
“产品B”=“黑色”,
“ProductC”=“蓝色”,
“产品D”=“橙色”))
你能让你的帖子重现吗?如果没有数据集,很难重现您的问题。@MLavoie请参阅编辑。谢谢。不幸的是,ggplot不支持Shining应用程序中的其他一些可视化,我希望将所有内容都放在一个框架内。