Plot.ly地图不呈现在闪亮的应用程序

我无法获得闪亮的应用程序呈现一个剧情地图。Plot.ly地图不呈现在闪亮的应用程序

我得到的错误信息是:对象“状态”未找到

的plotly部分主要来自本教程:https://plot.ly/r/shinyapp-map-click/#shiny-app

不知道它与我的活性元素或者不这样做。反应元素工作良好,创建一个ggplot地图。任何帮助表示赞赏。

library(shiny) 

library(dplyr)

library(plotly)

state_tot <- read.csv("https://raw.githubusercontent.com/bkreis84/Data-604---Model/master/VIS/codeS.csv")

ui <- fluidPage(

# Application title

titlePanel("IRS Tax Data 2010 - 2015"),

sidebarLayout(

sidebarPanel(

selectInput("var",

label = "Select Variable:",

choices = c('Unemployment $ per Return' = 'UNEMP_COMP_PR',

'% of Returns with Business Income' = 'PERC_BUSINESS_RETURN',

'% with Real Estate Deduction' = 'PERC_RE',

'AGI Per Return' = 'AGI_PR'),

selected = '% with Business Income'),

sliderInput("yr",

"Select Year:",

min = 2010,

max = 2015,

value = 2015)

),

# Show a plot of the generated distribution

mainPanel(

plotlyOutput("plot")

)

)

)

server <- function(input, output) {

select <- reactive({

year_sel <- input$yr

})

df <- reactive({

state_tot %>%

filter(YEAR == select())

})

high <- reactive({

switch(input$var,

"PERC_BUSINESS_RETURN" = "green",

"AGI_PR" = "green",

"PERC_RE" = "green",

"UNEMP_COMP_PR" = "red")

})

low <- reactive({

switch(input$var,

"PERC_BUSINESS_RETURN" = "red",

"AGI_PR" = "red",

"PERC_RE" = "red",

"UNEMP_COMP_PR" = "green")

})

output$plot <- renderPlotly({

g <- list(

scope = 'usa',

projection = list(type = 'albers usa'),

lakecolor = toRGB('white')

)

plot_ly(z = df()[[input$var]], text = df()[[STATE]], locations = df()[[STATE]],

type = 'choropleth', locationmode = 'USA-states') %>%

layout(geo = g)

})

}

# Run the application

shinyApp(ui = ui, server = server)

回答:

的错误是在这一行:

plot_ly(z = df()[[input$var]], text = df()[[STATE]], locations = df()[[STATE]] 

由于STATE没有加引号,你告诉R键寻找该名被存储在对象STATE列。如果你想获取所谓的“国家”之列,你要引用的话,那么:

plot_ly(z = df()[[input$var]], text = df()[["STATE"]], locations = df()[["STATE"]] 

或可替代值“国家” STATE <- "STATE"分配给对象STATE。这不是一个非常好的解决方案,但它可以帮助你更好地理解问题。

希望这会有所帮助!

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