ERROR: argument "mainPanel" is missing, with no default ?

[Iasmim Louriene]

Hello guys,

I'm havin the following Error message: argument "mainPanel" is missing, with no default, for the following script:

shinyUI(fluidPage(
titlePanel(title = h4("Demonstration of renderPlot() - a histogram", align="center")),
sidebarLayout(
sidebarPanel(
selectInput("var", "1.Select the variable from the iris dataset", choices= c("Sepal.Lenght" = 1, "Sepal.Width" = 2, "Petal.Length" = 3, "Petal.Width" = 4, selected =1)),
br(),
sliderInput("bins", "2.Select the number of BINs for histogram", min=5, max =25, value=15),
br(),
radioButtons("color", "3.Select the color of histogram", choices=c("Green", "Red", "Yellow", selected = "Green")
),
mainPanel(
plotOutput("myhist")
)
))

))

Could anyone please help me?
I really appreciate :)

[Joe Cheng]

You've put your mainPanel inside your sidebarPanel--they should be peers.

shinyUI(fluidPage(

  titlePanel(title = h4("Demonstration of renderPlot() - a histogram", align="center")),

  sidebarLayout(

    sidebarPanel(

      selectInput("var", "1.Select the variable from the iris dataset", choices= c("Sepal.Lenght" = 1, "Sepal.Width" = 2, "Petal.Length" = 3, "Petal.Width" = 4, selected =1)),

      br(),

      sliderInput("bins", "2.Select the number of BINs for histogram", min=5, max =25, value=15),

      br(),

      radioButtons("color", "3.Select the color of histogram", choices=c("Green", "Red", "Yellow", selected = "Green"))

    ),

    mainPanel(

      plotOutput("myhist")

    )

  )

))

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[Iasmim Louriene]

Ohhhh I see it! Got it Joe!

Thanks a lot man! :)