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library(plyr)
library(shiny)
library(shinythemes)
server <- function(input, output, session) {
location <- eventReactive(input$submit, {
if (is.na(input$zip)) {
loc <- data.frame(zip = as.numeric(NA))
loc <- data.frame(loc,lat = input$lat ,long = input$long)
}
else {
loc <- data.frame(TranslateZipCode(input$zip))
}
loc <- data.frame(loc, rndCoord.lat = RoundCoordinates(loc$lat), rndCoord.lon = RoundCoordinates(loc$long))
loc <- data.frame(loc,ClimateZ=LookupCZ(loc))
loc <- data.frame(loc, CZUncertainty(loc))
rename(loc, c("rndCoord.lat" = "rounded lat", "rndCoord.lon" = "rounded long", "ClimateZ" = "predicted KG-CZ", "possible.cz"="possible KG-CZ"))
})
output$view <- renderTable({
head(location())
})
observe({
# Run whenever reset button is pressed
input$reset
# Send an update to fields to reset values to NA
updateNumericInput(session, "zip", value = NA)
updateNumericInput(session, "lat", value = NA)
updateNumericInput(session, "long", value = NA)
})
}
ui <- fluidPage(
shinyUI(fluidPage(
theme = shinytheme("spacelab"),
titlePanel("Koppen-Geiger Climatic Zones"),
sidebarLayout(
sidebarPanel(
helpText("Enter either a zip code OR coordinates for the location."),
numericInput(inputId = "zip", "Zip", label = "Zip Code", value = NA),
numericInput(inputId = "lat", "Latitude", label = "Latitude", value = NA),
numericInput(inputId = "long", "Longitude", label = "Longitude", value = NA),
actionButton("submit", "Submit"),
actionButton("reset", "Reset")
),
mainPanel(
img(src="kgc-map.jpg", width = 600, height = 400),
tableOutput("view")
))
))
)
shinyApp(ui = ui, server = server)
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