将特定图例添加到 R plotly 图表
Add specific legend to R plotly chart
有人知道如何将以下类型的图例添加到 R plot_ly 图表吗?
请在下方查找可重现的示例
在此示例中,条形颜色取决于速度值:我想打印上面提到的图例,而不仅仅是 "trace 0" ...
library(plotly)
library(data.table)
example_data <- data.table(x = c(1,2,3,4,5,6), y = c(7,9,4,3,8,9), velocity = c(0.6,1.4,5,4,0.2,1.1))
example_data$color <- cut(example_data$velocity,breaks = c(0,0.8,1.2,1.5,10),labels = c("lightgreen","darkgreen","yellow","red"))
plot_ly(data = example_data, x = ~ x,y = ~y ,color = ~ I(color),type = "bar") %>%
layout(showlegend = TRUE)
非常感谢!
您可以使用图例的名称创建一个新列。并将因子重新排序为从低 (0 - 0.8) 到高 (> 1.5)。
你可以试试这个:
example_data <- data.table(x = c(1,2,3,4,5,6), y = c(7,9,4,3,8,9), velocity = c(0.6, 1.4, 5, 4, 0.2, 1.1),
name = c("0 - 0.8", "1.2 - 1.5", " >1.5", " >1.5", "0 - 0.8", "0.8 - 1.2"))
example_data$name <- as.factor(example_data$name)
example_data$name <- factor(example_data$name, levels = c("0 - 0.8", "0.8 - 1.2", "1.2 - 1.5", " >1.5"))
pal <- c("lightgreen", "darkgreen", "yellow", "red")
plot_ly(data = example_data, x = ~ x,y = ~y ,color = ~as.factor(name), colors = ~pal, type = "bar") %>%
layout(showlegend = TRUE, legend = list(orientation = "h",
xanchor = "center",
x = 0.5, y = 7))
有人知道如何将以下类型的图例添加到 R plot_ly 图表吗?
请在下方查找可重现的示例
在此示例中,条形颜色取决于速度值:我想打印上面提到的图例,而不仅仅是 "trace 0" ...
library(plotly)
library(data.table)
example_data <- data.table(x = c(1,2,3,4,5,6), y = c(7,9,4,3,8,9), velocity = c(0.6,1.4,5,4,0.2,1.1))
example_data$color <- cut(example_data$velocity,breaks = c(0,0.8,1.2,1.5,10),labels = c("lightgreen","darkgreen","yellow","red"))
plot_ly(data = example_data, x = ~ x,y = ~y ,color = ~ I(color),type = "bar") %>%
layout(showlegend = TRUE)
非常感谢!
您可以使用图例的名称创建一个新列。并将因子重新排序为从低 (0 - 0.8) 到高 (> 1.5)。
你可以试试这个:
example_data <- data.table(x = c(1,2,3,4,5,6), y = c(7,9,4,3,8,9), velocity = c(0.6, 1.4, 5, 4, 0.2, 1.1),
name = c("0 - 0.8", "1.2 - 1.5", " >1.5", " >1.5", "0 - 0.8", "0.8 - 1.2"))
example_data$name <- as.factor(example_data$name)
example_data$name <- factor(example_data$name, levels = c("0 - 0.8", "0.8 - 1.2", "1.2 - 1.5", " >1.5"))
pal <- c("lightgreen", "darkgreen", "yellow", "red")
plot_ly(data = example_data, x = ~ x,y = ~y ,color = ~as.factor(name), colors = ~pal, type = "bar") %>%
layout(showlegend = TRUE, legend = list(orientation = "h",
xanchor = "center",
x = 0.5, y = 7))