if/ifelse statements in renderPlot() for a Shiny app (elementary)
I'm missing some fundamentals with R if statements and especially how they can be used in the server block of a Shiny app. I'm looking just to have a radio button for each of four plots, but I think my if statement structure is failing. Only the last radio button brings up a plot. I'm more familiar with ifelse() but am going off the Shiny template of another - can I use ifelse() here? Also, any help in how to add the input data (data.frame creation and plot definition) into the server block would also be greatly appreciated -- I'm missing something there as well.
library(shiny)
library(ggplot2)
x <- seq(1:100)
y <- rnorm(100)
df <- data.frame(x,y)
p1 <- ggplot(df, aes(x,y)) + geom_line()
p2 <- ggplot(df, aes(x,y)) + geom_point()
p3 <- ggplot(df, aes(x,y)) + geom_bar(stat = "identity")
p4 <- ggplot(df, aes(x,y)) + geom_smooth()
ui <- fluidPage(theme=shinytheme("sandstone"),
fluidRow(
column(width=8,
radioButtons("radioInput", "Radio Button Header", choices =
c("name of plot 1 for user" = "plot 1",
"name of plot 2 for user" = "plot 2",
"name of plot 3 for user" = "plot 3",
"name of plot 4 for user" = "plot 4"
))
)
),
plotOutput("distPlot", height="700px")
)
server <- function(input, output) {
output$distPlot <- renderPlot({
if (input$radioInput == "plot 1") {p1}
if (input$radioInput == "plot 2") {p2}
if (input$radioInput == "plot 3") {p3}
if (input$radioInput == "plot 4") {p4}
})
}
shinyApp(ui = ui, server = server)
r shiny
asked Nov 18 '18 at 9:20
doconnordoconnor
322111
add a comment |
I'm missing some fundamentals with R if statements and especially how they can be used in the server block of a Shiny app. I'm looking just to have a radio button for each of four plots, but I think my if statement structure is failing. Only the last radio button brings up a plot. I'm more familiar with ifelse() but am going off the Shiny template of another - can I use ifelse() here? Also, any help in how to add the input data (data.frame creation and plot definition) into the server block would also be greatly appreciated -- I'm missing something there as well.
library(shiny)
library(ggplot2)
x <- seq(1:100)
y <- rnorm(100)
df <- data.frame(x,y)
p1 <- ggplot(df, aes(x,y)) + geom_line()
p2 <- ggplot(df, aes(x,y)) + geom_point()
p3 <- ggplot(df, aes(x,y)) + geom_bar(stat = "identity")
p4 <- ggplot(df, aes(x,y)) + geom_smooth()
ui <- fluidPage(theme=shinytheme("sandstone"),
fluidRow(
column(width=8,
radioButtons("radioInput", "Radio Button Header", choices =
c("name of plot 1 for user" = "plot 1",
"name of plot 2 for user" = "plot 2",
"name of plot 3 for user" = "plot 3",
"name of plot 4 for user" = "plot 4"
))
)
),
plotOutput("distPlot", height="700px")
)
server <- function(input, output) {
output$distPlot <- renderPlot({
if (input$radioInput == "plot 1") {p1}
if (input$radioInput == "plot 2") {p2}
if (input$radioInput == "plot 3") {p3}
if (input$radioInput == "plot 4") {p4}
})
}
shinyApp(ui = ui, server = server)
r shiny
asked Nov 18 '18 at 9:20
doconnordoconnor
322111
add a comment |
I'm missing some fundamentals with R if statements and especially how they can be used in the server block of a Shiny app. I'm looking just to have a radio button for each of four plots, but I think my if statement structure is failing. Only the last radio button brings up a plot. I'm more familiar with ifelse() but am going off the Shiny template of another - can I use ifelse() here? Also, any help in how to add the input data (data.frame creation and plot definition) into the server block would also be greatly appreciated -- I'm missing something there as well.
library(shiny)
library(ggplot2)
x <- seq(1:100)
y <- rnorm(100)
df <- data.frame(x,y)
p1 <- ggplot(df, aes(x,y)) + geom_line()
p2 <- ggplot(df, aes(x,y)) + geom_point()
p3 <- ggplot(df, aes(x,y)) + geom_bar(stat = "identity")
p4 <- ggplot(df, aes(x,y)) + geom_smooth()
ui <- fluidPage(theme=shinytheme("sandstone"),
fluidRow(
column(width=8,
radioButtons("radioInput", "Radio Button Header", choices =
c("name of plot 1 for user" = "plot 1",
"name of plot 2 for user" = "plot 2",
"name of plot 3 for user" = "plot 3",
"name of plot 4 for user" = "plot 4"
))
)
),
plotOutput("distPlot", height="700px")
)
server <- function(input, output) {
output$distPlot <- renderPlot({
if (input$radioInput == "plot 1") {p1}
if (input$radioInput == "plot 2") {p2}
if (input$radioInput == "plot 3") {p3}
if (input$radioInput == "plot 4") {p4}
})
}
shinyApp(ui = ui, server = server)
r shiny
asked Nov 18 '18 at 9:20
doconnordoconnor
322111
I'm missing some fundamentals with R if statements and especially how they can be used in the server block of a Shiny app. I'm looking just to have a radio button for each of four plots, but I think my if statement structure is failing. Only the last radio button brings up a plot. I'm more familiar with ifelse() but am going off the Shiny template of another - can I use ifelse() here? Also, any help in how to add the input data (data.frame creation and plot definition) into the server block would also be greatly appreciated -- I'm missing something there as well.
library(shiny)
library(ggplot2)
x <- seq(1:100)
y <- rnorm(100)
df <- data.frame(x,y)
p1 <- ggplot(df, aes(x,y)) + geom_line()
p2 <- ggplot(df, aes(x,y)) + geom_point()
p3 <- ggplot(df, aes(x,y)) + geom_bar(stat = "identity")
p4 <- ggplot(df, aes(x,y)) + geom_smooth()
ui <- fluidPage(theme=shinytheme("sandstone"),
fluidRow(
column(width=8,
radioButtons("radioInput", "Radio Button Header", choices =
c("name of plot 1 for user" = "plot 1",
"name of plot 2 for user" = "plot 2",
"name of plot 3 for user" = "plot 3",
"name of plot 4 for user" = "plot 4"
))
)
),
plotOutput("distPlot", height="700px")
)
server <- function(input, output) {
output$distPlot <- renderPlot({
if (input$radioInput == "plot 1") {p1}
if (input$radioInput == "plot 2") {p2}
if (input$radioInput == "plot 3") {p3}
if (input$radioInput == "plot 4") {p4}
})
}
shinyApp(ui = ui, server = server)
r shiny
r shiny
asked Nov 18 '18 at 9:20
doconnordoconnor
322111
asked Nov 18 '18 at 9:20
doconnordoconnor
322111
asked Nov 18 '18 at 9:20
doconnordoconnor
322111
asked Nov 18 '18 at 9:20
doconnordoconnor
322111
asked Nov 18 '18 at 9:20
doconnordoconnor
322111
322111
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
You have two options, either you put print command when plotting:
server <- function(input, output) {
output$distPlot <- renderPlot({
if (input$radioInput == "plot 1") {print(p1)}
if (input$radioInput == "plot 2") {print(p2)}
if (input$radioInput == "plot 3") {print(p3)}
if (input$radioInput == "plot 4") {print(p4)}
})
}
Or you go for if/else statements:
server <- function(input, output) {
output$distPlot <- renderPlot({
if (input$radioInput == "plot 1") {p1}
else if (input$radioInput == "plot 2") {p2}
else if (input$radioInput == "plot 3") {p3}
else {p4}
})
}
answered Nov 18 '18 at 10:11
arg0nautarg0naut
2,9921314
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
You have two options, either you put print command when plotting:
server <- function(input, output) {
output$distPlot <- renderPlot({
if (input$radioInput == "plot 1") {print(p1)}
if (input$radioInput == "plot 2") {print(p2)}
if (input$radioInput == "plot 3") {print(p3)}
if (input$radioInput == "plot 4") {print(p4)}
})
}
Or you go for if/else statements:
server <- function(input, output) {
output$distPlot <- renderPlot({
if (input$radioInput == "plot 1") {p1}
else if (input$radioInput == "plot 2") {p2}
else if (input$radioInput == "plot 3") {p3}
else {p4}
})
}
answered Nov 18 '18 at 10:11
arg0nautarg0naut
2,9921314
add a comment |
You have two options, either you put print command when plotting:
server <- function(input, output) {
output$distPlot <- renderPlot({
if (input$radioInput == "plot 1") {print(p1)}
if (input$radioInput == "plot 2") {print(p2)}
if (input$radioInput == "plot 3") {print(p3)}
if (input$radioInput == "plot 4") {print(p4)}
})
}
Or you go for if/else statements:
server <- function(input, output) {
output$distPlot <- renderPlot({
if (input$radioInput == "plot 1") {p1}
else if (input$radioInput == "plot 2") {p2}
else if (input$radioInput == "plot 3") {p3}
else {p4}
})
}
answered Nov 18 '18 at 10:11
arg0nautarg0naut
2,9921314
add a comment |
You have two options, either you put print command when plotting:
server <- function(input, output) {
output$distPlot <- renderPlot({
if (input$radioInput == "plot 1") {print(p1)}
if (input$radioInput == "plot 2") {print(p2)}
if (input$radioInput == "plot 3") {print(p3)}
if (input$radioInput == "plot 4") {print(p4)}
})
}
Or you go for if/else statements:
server <- function(input, output) {
output$distPlot <- renderPlot({
if (input$radioInput == "plot 1") {p1}
else if (input$radioInput == "plot 2") {p2}
else if (input$radioInput == "plot 3") {p3}
else {p4}
})
}
answered Nov 18 '18 at 10:11
arg0nautarg0naut
2,9921314
You have two options, either you put print command when plotting:
server <- function(input, output) {
output$distPlot <- renderPlot({
if (input$radioInput == "plot 1") {print(p1)}
if (input$radioInput == "plot 2") {print(p2)}
if (input$radioInput == "plot 3") {print(p3)}
if (input$radioInput == "plot 4") {print(p4)}
})
}
Or you go for if/else statements:
server <- function(input, output) {
output$distPlot <- renderPlot({
if (input$radioInput == "plot 1") {p1}
else if (input$radioInput == "plot 2") {p2}
else if (input$radioInput == "plot 3") {p3}
else {p4}
})
}
answered Nov 18 '18 at 10:11
arg0nautarg0naut
2,9921314
edited Nov 18 '18 at 10:17
answered Nov 18 '18 at 10:11
arg0nautarg0naut
2,9921314
answered Nov 18 '18 at 10:11
arg0nautarg0naut
2,9921314
answered Nov 18 '18 at 10:11
arg0nautarg0naut
2,9921314
2,9921314
add a comment |
add a comment |
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