How can I customise the text output in a verbatimTextOuput function within a Shiny interactive plot in R
I want to change the text output to show specific information about the plot point being hovered over such as name and value and such, but I cant seem to workout how to alter the VerbatimTextOutput and what it currently show is not of much use for a quick glace of information. This is the code I am using:
```
ui <- fluidPage(
fluidRow(
column(width = 8, class = "well",
h4("Brush to select region. Left plot controls right plot"),
fluidRow(
column(width = 12,
plotOutput("plot2", height = 300,
brush = brushOpts(
id = "plot2_brush",
resetOnNew = TRUE
)
)
),
column(width = 12,
plotOutput("plot3", height = 300, hover = hoverOpts(id = "plot_hover"))
)
)
),
column(width = 3,
verbatimTextOutput("hover_info", placeholder = TRUE))
)
)
server <- function(input, output)
# Linked plots (middle and right)
ranges2 <- reactiveValues(x = NULL, y = NULL)
output$plot2 <- renderPlot(
ggplot(adj_p_val_df, aes(x = Genes, y = p_value, col = Model))+
geom_point()+
theme(legend.position = "none")
)
output$plot3 <- renderPlot(
ggplot(adj_p_val_df, aes(x = Genes, y = p_value, col = Model))+
geom_point() +
coord_cartesian(xlim = ranges2$x, ylim = ranges2$y, expand = FALSE)
)
output$hover_info = renderPrint(
cat("Gene info:n")
str(input$plot_hover)
)
output$placeholder = renderTe
# When a double-click happens, check if there's a brush on the plot.
# If so, zoom to the brush bounds; if not, reset the zoom.
observe(
brush <- input$plot2_brush
if (!is.null(brush))
ranges2$x <- c(brush$xmin, brush$xmax)
ranges2$y <- c(brush$ymin, brush$ymax)
else
ranges2$x <- NULL
ranges2$y <- NULL
)
shinyApp(ui, server)
```
r shiny
add a comment |
I want to change the text output to show specific information about the plot point being hovered over such as name and value and such, but I cant seem to workout how to alter the VerbatimTextOutput and what it currently show is not of much use for a quick glace of information. This is the code I am using:
```
ui <- fluidPage(
fluidRow(
column(width = 8, class = "well",
h4("Brush to select region. Left plot controls right plot"),
fluidRow(
column(width = 12,
plotOutput("plot2", height = 300,
brush = brushOpts(
id = "plot2_brush",
resetOnNew = TRUE
)
)
),
column(width = 12,
plotOutput("plot3", height = 300, hover = hoverOpts(id = "plot_hover"))
)
)
),
column(width = 3,
verbatimTextOutput("hover_info", placeholder = TRUE))
)
)
server <- function(input, output)
# Linked plots (middle and right)
ranges2 <- reactiveValues(x = NULL, y = NULL)
output$plot2 <- renderPlot(
ggplot(adj_p_val_df, aes(x = Genes, y = p_value, col = Model))+
geom_point()+
theme(legend.position = "none")
)
output$plot3 <- renderPlot(
ggplot(adj_p_val_df, aes(x = Genes, y = p_value, col = Model))+
geom_point() +
coord_cartesian(xlim = ranges2$x, ylim = ranges2$y, expand = FALSE)
)
output$hover_info = renderPrint(
cat("Gene info:n")
str(input$plot_hover)
)
output$placeholder = renderTe
# When a double-click happens, check if there's a brush on the plot.
# If so, zoom to the brush bounds; if not, reset the zoom.
observe(
brush <- input$plot2_brush
if (!is.null(brush))
ranges2$x <- c(brush$xmin, brush$xmax)
ranges2$y <- c(brush$ymin, brush$ymax)
else
ranges2$x <- NULL
ranges2$y <- NULL
)
shinyApp(ui, server)
```
r shiny
add a comment |
I want to change the text output to show specific information about the plot point being hovered over such as name and value and such, but I cant seem to workout how to alter the VerbatimTextOutput and what it currently show is not of much use for a quick glace of information. This is the code I am using:
```
ui <- fluidPage(
fluidRow(
column(width = 8, class = "well",
h4("Brush to select region. Left plot controls right plot"),
fluidRow(
column(width = 12,
plotOutput("plot2", height = 300,
brush = brushOpts(
id = "plot2_brush",
resetOnNew = TRUE
)
)
),
column(width = 12,
plotOutput("plot3", height = 300, hover = hoverOpts(id = "plot_hover"))
)
)
),
column(width = 3,
verbatimTextOutput("hover_info", placeholder = TRUE))
)
)
server <- function(input, output)
# Linked plots (middle and right)
ranges2 <- reactiveValues(x = NULL, y = NULL)
output$plot2 <- renderPlot(
ggplot(adj_p_val_df, aes(x = Genes, y = p_value, col = Model))+
geom_point()+
theme(legend.position = "none")
)
output$plot3 <- renderPlot(
ggplot(adj_p_val_df, aes(x = Genes, y = p_value, col = Model))+
geom_point() +
coord_cartesian(xlim = ranges2$x, ylim = ranges2$y, expand = FALSE)
)
output$hover_info = renderPrint(
cat("Gene info:n")
str(input$plot_hover)
)
output$placeholder = renderTe
# When a double-click happens, check if there's a brush on the plot.
# If so, zoom to the brush bounds; if not, reset the zoom.
observe(
brush <- input$plot2_brush
if (!is.null(brush))
ranges2$x <- c(brush$xmin, brush$xmax)
ranges2$y <- c(brush$ymin, brush$ymax)
else
ranges2$x <- NULL
ranges2$y <- NULL
)
shinyApp(ui, server)
```
r shiny
I want to change the text output to show specific information about the plot point being hovered over such as name and value and such, but I cant seem to workout how to alter the VerbatimTextOutput and what it currently show is not of much use for a quick glace of information. This is the code I am using:
```
ui <- fluidPage(
fluidRow(
column(width = 8, class = "well",
h4("Brush to select region. Left plot controls right plot"),
fluidRow(
column(width = 12,
plotOutput("plot2", height = 300,
brush = brushOpts(
id = "plot2_brush",
resetOnNew = TRUE
)
)
),
column(width = 12,
plotOutput("plot3", height = 300, hover = hoverOpts(id = "plot_hover"))
)
)
),
column(width = 3,
verbatimTextOutput("hover_info", placeholder = TRUE))
)
)
server <- function(input, output)
# Linked plots (middle and right)
ranges2 <- reactiveValues(x = NULL, y = NULL)
output$plot2 <- renderPlot(
ggplot(adj_p_val_df, aes(x = Genes, y = p_value, col = Model))+
geom_point()+
theme(legend.position = "none")
)
output$plot3 <- renderPlot(
ggplot(adj_p_val_df, aes(x = Genes, y = p_value, col = Model))+
geom_point() +
coord_cartesian(xlim = ranges2$x, ylim = ranges2$y, expand = FALSE)
)
output$hover_info = renderPrint(
cat("Gene info:n")
str(input$plot_hover)
)
output$placeholder = renderTe
# When a double-click happens, check if there's a brush on the plot.
# If so, zoom to the brush bounds; if not, reset the zoom.
observe(
brush <- input$plot2_brush
if (!is.null(brush))
ranges2$x <- c(brush$xmin, brush$xmax)
ranges2$y <- c(brush$ymin, brush$ymax)
else
ranges2$x <- NULL
ranges2$y <- NULL
)
shinyApp(ui, server)
```
r shiny
r shiny
edited Nov 14 '18 at 20:24
Rob
asked Nov 14 '18 at 20:17
RobRob
62
62
add a comment |
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