Nothing
## Use navbarPage() to add a related app
library(shiny)
simLimit <- 10000
####################################3
## ui
####################################
navbarPage(
title = 'Exploring Confidence Intervals',
tabPanel(title = "Coverage Properties",
sidebarPanel(
conditionalPanel(
condition = "input.takeSample == 0 || output.beginning == true",
selectInput(
inputId="popDist",label="Population Shape",
choices=list("Normal"="normal",
"Skewy"="skew",
"REALLY Skewed"="superskew",
"Way-Out Outlier Group"="outliers")
),
br(),
sliderInput(inputId="n","Sample Size n",value=2,min=2,max=50,step=1),
helpText("How confident do you want to be that the population mean is contained",
"within the confidence interval? Use the slider to select a desired",
"percent-confidence level."),
sliderInput(inputId="confLevel","Confidence Level",value=80,min=50,max=99,step=1)
),
helpText("How many samples would you like to take at one time? Limit is 10000. With each ",
"sample, we'll make a confidence interval for the population mean."),
numericInput("sims", "Number of Samples at Once", 1, min=0, max = simLimit, step=1),
actionButton("takeSample","Sample Now"),
conditionalPanel(
condition = 'output.beginning == false',
actionButton("reset","Start Over")
)
),
mainPanel(
conditionalPanel(
condition = "input.takeSample == 0 || output.beginning == true",
plotOutput("initialGraph"),
HTML("<ul>
<li>The population density curve is in red.</li>
<li>The vertical line marks the population mean.</li>
</ul>")
),
conditionalPanel(
condition = "output.beginning == false",
tabsetPanel(
id = "coverageTabsetPanel",
tabPanel(
title = "Latest Interval",
plotOutput("plotSample"),
HTML("<p> </p>"),
HTML("<ul>
<li>The population density curve is in red.</li>
<li>The vertical line marks the population mean.</li>
<li>A density curve for the most recent sample is in light blue.</li>
<li>The sample mean is the big blue dot.</li>
<li>The confidence interval is in green.</li>
</ul>"),
br(''),
tableOutput("summary")
),
tabPanel(
title = "t-statistic",
plotOutput("tstatistic"),
HTML("<p>The plots above compare the actual distribution of the t-statistic to the t-curve with n-1 degrees of freedom.</p>
<p></p>
<ul>
<li>The t-curve is in red. If the population is exactly normal, then this curve represents the exact distribution of the t-statistic.</li>
<li>The density plot of the t-statistics found so far is shown in blue. This plot gives a pretty good estimate of the actual distribution of the t-statistic, for the population and sample size that you have selected.</li>
</ul>")
)
)
)
)
),
tabPanel(
title = "Fifty at a Time",
sidebarPanel(
conditionalPanel(
condition = "input.takeSample2 == 0 || output.beginning2 == true",
selectInput(
inputId="popDist2",
label="Population Shape",
choices=list("Normal"="normal",
"Skewy"="skew",
"REALLY Skewed"="superskew",
"Way-Out Outlier Group"="outliers")
),
br()
),
sliderInput(inputId="n2","Sample Size n",value=2,min=2,max=50,step=1),
helpText("How confident do you want to be that the population mean is contained",
"within the confidence interval? Use the slider to select a desired",
"percent-confidence level."),
sliderInput(inputId="confLevel2","Confidence Level",value=80,min=50,max=99,step=1),
actionButton("takeSample2","Fifty Samples Now"),
conditionalPanel(
condition = 'output.beginning2 == false',
actionButton("reset2","Start Over")
)
),
mainPanel(
conditionalPanel(
condition = "input.takeSample2 == 0 || output.beginning2 == true",
plotOutput("initialGraph2"),
HTML("<ul>
<li>The population density curve is in red.</li>
<li>The vertical line marks the population mean.</li>
</ul>")
),
conditionalPanel(
condition = "output.beginning2 == false",
plotOutput("plotSample2"),
HTML("<ul>
<li>The population density curve is in red.</li>
<li>The vertical line marks the population mean.</li>
<li>Intervals covering the mean are green.</li>
<li>Intervals NOT covering the mean are in burlywood.</li>
</ul>"),
tableOutput("summary2")
)
)
)
)
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