我正在尝试在散点图中更改颜色条的标题。
查看文档,似乎这应该是微不足道的。但是,我尝试将其插入colorbar = list(title = "Typing Rate")
到主plotly()
代码中,以及将其插入到layout()
中,如下所示。
如何自定义此标题?
library(dplyr)
library(shiny)
library(plotly)
df <- as.data.frame(list("UserID"=c(1,1,1,1,2,2,2,2),
"Category"=c('A','A','B','B','A','A','B','B'),
"Rate"=c(2,3,5,6,8,6,7,1),
"x"=c(1,3,5,7,2,4,6,8),
"y"=c(1,3,5,7,2,4,6,8)
))
ui <- (fluidPage(
sidebarLayout(
sidebarPanel(
selectInput("userInput","Select User", sort(unique(df$UserID)),
selected=1),
checkboxGroupInput("CategoryInput", "Select Category", sort(unique(df$Category)),
selected=c('A','B'))
),
mainPanel(
plotlyOutput("mainPlot")#,
)
)
))
server <- function(input, output, session) {
# filter for both user and category
filteredFull <- reactive({
df %>%
filter(
UserID == input$userInput,
Category %in% input$CategoryInput
)
})
output$mainPlot <- renderPlotly({
plot_ly(data=filteredFull(), x=x, y=y,
color=Rate, size=Rate,
mode='markers') %>%
layout(
colorbar = list(title = "Typing Rate")
)
})
}
shinyApp(ui, server)