Locking the axis labels to the top of the plot in R shiny

Question

Locking the axis labels to the top of the plot in R shiny

My giraffe rendering is very long, and I want the x-axis values to remain visible as the user scrolls down.

Below is a sample code that demonstrates this concept. I am open to different types of plots as long as they display the labels when hovering over each block. Any suggestions are welcome!

library(shiny)
library(tidyverse)
library(ggiraph)

ui <- fluidRow(girafeOutput("my_plot"))

server <- function(input, output){
  output$my_plot <- renderGirafe({
    
    data <- data.frame(
      letter = rep(c(LETTERS, letters, paste0(LETTERS, letters))),
      year = factor(rep_len(2000:2008, 78)),
      value = floor(runif(78, 1, 6))
    )
    
    g <- ggplot(data) + 
      geom_tile_interactive(aes(x = year, y = letter, fill = value, tooltip = value)) + 
      scale_x_discrete(position = "top") + 
      coord_fixed() +
      theme_classic() + 
      theme(axis.text.x = element_text(
        angle = 90,
        hjust = 0.5,
        vjust = 0,
        size = 17
      )) 
    
    girafe(ggobj = g,  
           options = list(opts_sizing(rescale = F)),
           width_svg = 20,
           height_svg = 50
    )
  })
}

shinyApp(ui = ui, server = server)

javascript css r shiny ggiraph

Answer 1

Answer №1

Experience the interactive power of plotly, where you can seamlessly scroll the y-axis while hovering over it, as shown in the image below:

https://i.sstatic.net/51D81WhH.png

It's important for users to be aware that there isn't a visible scroll bar on the y-axis (a "rangeslider" could have been helpful here, but unfortunately not available). Nevertheless, the desired result is still achieved.

library(shiny)
library(tidyverse)

ui <- fluidRow(
  plotlyOutput("my_plot")
)

server <- function(input, output){
  output$my_plot <- renderPlotly({
    
    data <- data.frame(
      letter = rep(c(LETTERS, letters, paste0(LETTERS, letters))),
      year = factor(rep_len(2000:2008, 78)),
      value = floor(runif(78, 1, 6))
    )

    g <- ggplot(data) + 
      geom_tile(aes(x = year, y = letter, fill = value), show.legend = F) + 
      scale_x_discrete(position = "top") + 
      coord_fixed() +
      theme_classic() + 
      theme(axis.text.x = element_text(
        angle = 90,
        hjust = 0.5,
        vjust = 0,
        size = 17
      )) 

    # adjust the height to your needs:
    ggplotly(g, height = 5000) %>% 
      layout(xaxis = list(side = "top"))

  })
}

shinyApp(ui = ui, server = server)

Answer 2

Experience the interactive power of plotly, where you can seamlessly scroll the y-axis while hovering over it, as shown in the image below:

https://i.sstatic.net/51D81WhH.png

It's important for users to be aware that there isn't a visible scroll bar on the y-axis (a "rangeslider" could have been helpful here, but unfortunately not available). Nevertheless, the desired result is still achieved.

library(shiny)
library(tidyverse)

ui <- fluidRow(
  plotlyOutput("my_plot")
)

server <- function(input, output){
  output$my_plot <- renderPlotly({
    
    data <- data.frame(
      letter = rep(c(LETTERS, letters, paste0(LETTERS, letters))),
      year = factor(rep_len(2000:2008, 78)),
      value = floor(runif(78, 1, 6))
    )

    g <- ggplot(data) + 
      geom_tile(aes(x = year, y = letter, fill = value), show.legend = F) + 
      scale_x_discrete(position = "top") + 
      coord_fixed() +
      theme_classic() + 
      theme(axis.text.x = element_text(
        angle = 90,
        hjust = 0.5,
        vjust = 0,
        size = 17
      )) 

    # adjust the height to your needs:
    ggplotly(g, height = 5000) %>% 
      layout(xaxis = list(side = "top"))

  })
}

shinyApp(ui = ui, server = server)

Answer 3

Answer №2

Exploring with giraffe:

library(tidyverse)
library(ggiraph)

library(shiny)


ui <- fluidRow(girafeOutput("my_plot"))

server <- function(input, output){
  output$my_plot <- renderGirafe({
    
    data <- data.frame(
      letter = rep(c(LETTERS, letters, paste0(LETTERS, letters))),
      year = factor(rep_len(2000:2008, 78)),
      value = floor(runif(78, 1, 6))
    )
    
    g <- ggplot(data) + 
      geom_tile_interactive(
        aes(x = year, y = letter, fill = value, 
            tooltip = purrr::map(paste0(
              "<b>my letter</b>: ", letter ,
              "<br><b>my value</b>: ", as.character(sprintf("%.3f",value)) ,
              "<br><b>my year</b>: ", as.character(year) 
            ), shiny::HTML)# htmltools::HTML 
        )
      ) + 
      scale_x_discrete(position = "top") + 
      coord_fixed() +
      theme_classic() + 
      theme(axis.text.x = element_text(
        angle = 90,
        hjust = 0.5,
        vjust = 0,
        size = 17
      )) 
    
    girafe(ggobj = g,  
           options = list(opts_sizing(rescale = F)),
           width_svg = 20,
           height_svg = 50
    )
  })
}

shinyApp(ui = ui, server = server)

Enhancing with ggplotly

(similar to julien.leroux5, but with customization):

Use text in aes instead of other variable names
In ggplotly, set tooltip= "text"

library(tidyverse)
library(ggiraph)
library(shiny)

library(plotly)


ui <- fluidRow(
  plotlyOutput("my_plot")
)

server <- function(input, output){
  output$my_plot <- renderPlotly({
    
    data <- data.frame(
      letter = rep(c(LETTERS, letters, paste0(LETTERS, letters))),
      year = factor(rep_len(2000:2008, 78)),
      value = floor(runif(78, 1, 6))
    )
    
    g <- ggplot(
      data,
      aes(
        text=purrr::map(paste0(
          "<b>my letter</b>: ", letter ,
          "<br><b>my value</b>: ", as.character(sprintf("%.3f",value)) ,
          "<br><b> my year</b>: ", as.character(year) 
        ), shiny::HTML)  # htmltools::HTML
      )
      
    ) + 
      geom_tile(aes(x = year, y = letter, fill = value), show.legend = F) + 
      scale_x_discrete(position = "top") + 
      coord_fixed() +
      theme_classic() + 
      theme(axis.text.x = element_text(
        angle = 90,
        hjust = 0.5,
        vjust = 0,
        size = 17
      )) 
    
    # adjust the height to your needs:
    ggplotly(g, 
             height = 5000,
             tooltip= "text"
    ) %>% 
      layout(xaxis = list(side = "top"))
    
  })
}

shinyApp(ui = ui, server = server)

Answer 4

Exploring with giraffe:

library(tidyverse)
library(ggiraph)

library(shiny)


ui <- fluidRow(girafeOutput("my_plot"))

server <- function(input, output){
  output$my_plot <- renderGirafe({
    
    data <- data.frame(
      letter = rep(c(LETTERS, letters, paste0(LETTERS, letters))),
      year = factor(rep_len(2000:2008, 78)),
      value = floor(runif(78, 1, 6))
    )
    
    g <- ggplot(data) + 
      geom_tile_interactive(
        aes(x = year, y = letter, fill = value, 
            tooltip = purrr::map(paste0(
              "<b>my letter</b>: ", letter ,
              "<br><b>my value</b>: ", as.character(sprintf("%.3f",value)) ,
              "<br><b>my year</b>: ", as.character(year) 
            ), shiny::HTML)# htmltools::HTML 
        )
      ) + 
      scale_x_discrete(position = "top") + 
      coord_fixed() +
      theme_classic() + 
      theme(axis.text.x = element_text(
        angle = 90,
        hjust = 0.5,
        vjust = 0,
        size = 17
      )) 
    
    girafe(ggobj = g,  
           options = list(opts_sizing(rescale = F)),
           width_svg = 20,
           height_svg = 50
    )
  })
}

shinyApp(ui = ui, server = server)

Enhancing with ggplotly

(similar to julien.leroux5, but with customization):

Use text in aes instead of other variable names
In ggplotly, set tooltip= "text"

library(tidyverse)
library(ggiraph)
library(shiny)

library(plotly)


ui <- fluidRow(
  plotlyOutput("my_plot")
)

server <- function(input, output){
  output$my_plot <- renderPlotly({
    
    data <- data.frame(
      letter = rep(c(LETTERS, letters, paste0(LETTERS, letters))),
      year = factor(rep_len(2000:2008, 78)),
      value = floor(runif(78, 1, 6))
    )
    
    g <- ggplot(
      data,
      aes(
        text=purrr::map(paste0(
          "<b>my letter</b>: ", letter ,
          "<br><b>my value</b>: ", as.character(sprintf("%.3f",value)) ,
          "<br><b> my year</b>: ", as.character(year) 
        ), shiny::HTML)  # htmltools::HTML
      )
      
    ) + 
      geom_tile(aes(x = year, y = letter, fill = value), show.legend = F) + 
      scale_x_discrete(position = "top") + 
      coord_fixed() +
      theme_classic() + 
      theme(axis.text.x = element_text(
        angle = 90,
        hjust = 0.5,
        vjust = 0,
        size = 17
      )) 
    
    # adjust the height to your needs:
    ggplotly(g, 
             height = 5000,
             tooltip= "text"
    ) %>% 
      layout(xaxis = list(side = "top"))
    
  })
}

shinyApp(ui = ui, server = server)

Locking the axis labels to the top of the plot in R shiny

Answer №1

Answer №2

Exploring with giraffe:

Enhancing with ggplotly

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