Nothing
library(shiny)
# Define UI for testing application
shinyUI(pageWithSidebar(
# Application title
headerPanel("The Central Limit Theorem"),
# Sidebar
sidebarPanel(
conditionalPanel(
condition="input.resample == 0 || output.totalPrev == output.total",
selectInput(inputId="popDist",label="Population Shape",
choices=list("Normal"="normal",
"Skewy"="skew",
"REALLY Skewed"="superskew",
"Way-Out Outlier Group"="outliers")),
br(),
helpText("Choose the sample size."),
sliderInput(inputId="n","Sample Size n",value=2,min=2,max=50,step=1),
br()
),
helpText("How many samples would you like to take at one time? Limit is 10000. We will ",
"compute the mean of each sample."),
numericInput("sims","Number of Samples at Once",1,min=0,step=1),
actionButton("resample","Sample Now"),
conditionalPanel(
condition="(input.resample > 0 && input.reset == 0) || output.total > output.totalPrev",
actionButton("reset","Start Over")
)
),
# Here comes the main panel
mainPanel(
conditionalPanel(
condition="input.resample == 0 || output.totalPrev == output.total",
plotOutput("initialGraph")
),
conditionalPanel(
condition="(input.resample > 0 && input.reset == 0) || output.total > output.totalPrev",
tabsetPanel(
tabPanel("Latest Sample",
plotOutput("graphSample"),
HTML("<p> </p>"),
HTML("<ul>
<li>The population density curve is in red.</li>
<li>The vertical line marks the population mean.</li>
<li>The histogram of the sample is in light blue.</li>
<li>The sample mean is the big blue dot.</li>
</ul>")),
tabPanel("Sample Mean Distribution",
plotOutput("xbar"),
HTML(
"<p>The plots above compare the distribution of the sample means so far to a normal curve.</p>
<p></p>
<ul>
<li>The normal curve is in red. If the population is exactly normal, then this curve represents the exact distribution of the sample mean.</li>
<li>A density plot of the sample means is in blue. This plot gives a pretty good estimate of the distribution of the sample mean, for the population and sample size that you have selected.</li>
<li>The rug at the bottom of the plot gives individual sample means found so far (if there are no more than 50). The latest one is marked with a large blue dot.</li>
</ul>"))
) # end tabset panel
) # end conditonal panel
) # end main panel
))
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