我正在尝试在R Shiny的这些日期之间创建一个sliderinput。每次,我都会收到此错误: 警告:错误:-:二进制运算符的非数字参数 [没有可用的堆栈跟踪]
and this as output in the app, instead of the slider: non-numeric argument to binary operator
Yet, I have seen countless examples of this (i.e https://github.com/eparker12/nCoV_tracker/blob/master/app.R) , so I do not see why this does not work. I have the libraries Lubridate, Shiny and ShinyWidgets and have updated them to the latest versions.
ui=fluidPage(
uiOutput("plot_date_page1"),
)
server=function(input,output,session){
output$plot_date_page1<-renderUI({
sliderInput("plot_date_page1","Date",
label = h5("Select mapping date"),
min = as.Date("1980-01-01","%Y-%m-%d"),
max = as.Date("2020-01-01","%Y-%m-%d"),
value = as.Date("2020-01-01"),
timeFormat = "%y %b")
})
}
shinyApp(ui = ui, server = server)