我对闪亮还是很陌生,我知道你的问题相当简单,但尽管做了很多研究,我似乎无法让闪亮来渲染比例测试的输出。我正在尝试制作一个脚本,其中用户输入所有参数(p1,p2,sig.level,power),并给出样本大小 n。我尝试了许多不同的方法,但我通常最终没有输出,或者错误“'n'、'p1'、'p2'、'power'和'sig.level'中的一个必须为NULL” . 任何帮助表示赞赏,谢谢!
到目前为止我的代码:
ui<-shinyUI(fluidPage(
headerPanel("Power Calculator"),
fluidRow(
column(12,
wellPanel(
helpText("This calculator can help you understand the power of
your experimental design to detect treatment effects. You
can choose
between a standard design in which individuals are randomly
assigned to treatment or control
and a clustered design, in which groups of individuals are assigned to treatment
and control together."),
column(4,
wellPanel(
numericInput('p1a','prop1', value = 0.12, min = 0.01, max = 0.99),
numericInput('p2a', 'prop2', value = 0.14, min = 0.01, max = 0.99),
numericInput('sig.levela','significance level' , value = 0.95, min = 0.9, max = 0.99),
numericInput('powera', 'power level', value = 0.8, min = 0.75, max = 0.99)
),
column(8,
wellPanel(
htmlOutput("nrequired")
)
)
)
)
)
)
)
)
)
server<-shinyServer(
function(input, output) {
sample.size<-reactive({
p1<-input$p1a
p2<-input$p2a
sig.level<-input$sig.level$a
power<-input$power.levela
})
output$nrequired <- renderPrint({
power.prop.test(sample.size)
print(sample.size)
})
}
)
shinyApp(ui=ui,server=server)