如果我只是运行传单部分。它给出了输出,但是在闪亮的应用程序中却给出了以上错误。
当我尝试从addCircleMarkers中删除代码时,它的输出结果没有任何标记。我猜该特定声明有问题。
此外,我想更改每种类型的传单中的标记形状,但这仍然是我在互联网上找不到的资源所无法提供的。它表明我必须手动查找链接(我需要将近10个链接)
data('zipcode')
#removing the extra empty column
data$X <- NULL
#cleaning the zipcodes
data$ZIP.CODE <- clean.zipcodes(data$ZIP.CODE)
#adding the Stage2/Stage1 column
combine$ratio <- combine$Stage2/combine$Stage1
combine <- merge(data, zipcode, by.x='ZIP.CODE', by.y='zip')
combine[is.na(combine)] <- 0
ui<-fluidPage(
sidebarLayout(
sidebarPanel(
selectInput('rank','Ziprank',choices=levels(combine$ZIP.RANK),multiple=T,selected = 'A'),
selectInput('type','Ziptype',choices=levels(combine$TYPE),multiple=T,selected = 'PUBLIC'),
selectInput('market','Market',choices=c(1,2,3,4),multiple=T,selected = 1),
selectInput('housevalue','Median Housing Value',choices=levels(combine$MEDIAN.HOUSING.VALUE),multiple=T,selected = '1HVL'),
selectInput('familyincome','Median Family Value',choices=levels(combine$MEDIAN.FAMILY.INCOME),multiple=T,selected = '1MFI'),
selectInput('buyingpower','Median House Buying Power',choices=levels(combine$MEDIAN.HOUSE.BUYING.POWER),multiple=T,selected = '1MHB'),
selectInput('ethnicity','Ethnicity',choices=levels(combine$ETHNICITY),multiple=T,selected = '1ETH'),
selectInput('population','Population Density',choices=levels(combine$POPULATION.DENSITY),multiple=T,selected = '1POP'),
selectInput('masters','Masters Degree',choices=levels(combine$MASTERS.DEGREE),multiple=T,selected = '1MDG'),
selectInput('associate','Associate Degree',choices=levels(combine$ASSOCIATES.DEGREE),multiple=T,selected = '1ADG'),
selectInput('highschool','High School Age Population',choices=levels(combine$HIGH.SCHOOL.AGE.POPULATION),multiple=T,selected = '1HSP'),
selectInput('epscode','EPS code',choices=levels(combine$EPS.CODE),multiple=T,selected = 'MS01'),
selectInput('state','State',choices=unique(combine$state),multiple=T,selected = 'NY'),
sliderInput('score','Zipscore', min(combine$ZIP.SCORE), max(combine$ZIP.SCORE), value=c(0.1,0.3))
),
mainPanel(
leafletOutput('plot')
)
)
)
server <- function(input, output) {
output$plot <-renderLeaflet({
final <- subset(combine, ZIP.RANK %in% input$rank &
TYPE %in% input$type &
MARKET %in% input$market &
MEDIAN.HOUSING.VALUE %in% input$housevalue &
MEDIAN.FAMILY.INCOME %in% input$familyincome &
MEDIAN.HOUSE.BUYING.POWER %in% input$buyingpower &
ETHNICITY %in% input$ethnicity &
POPULATION.DENSITY %in% input$population &
MASTERS.DEGREE %in% input$masters &
ASSOCIATES.DEGREE %in% input$associate &
HIGH.SCHOOL.AGE.POPULATION %in% input$highschool &
EPS.CODE %in% input$epscode &
state %in% input$state &
ZIP.SCORE >= input$score[1] & ZIP.SCORE <= input$score[2]
)
pal <- colorNumeric(palette = "Reds", domain = c(0:1))
p <- final %>%
leaflet() %>%
addProviderTiles('CartoDB') %>%
addCircleMarkers(data = final, color = ~pal(ZIP.SCORE),label=~GEONAME) %>%
addLegend(title = "ZipScore", pal = pal, values = c(0:1),
position = "bottomright")
p
})
}
shinyApp(ui = ui, server = server)
答案 0 :(得分:0)
您需要通过leafletProxy()
添加圆圈标记。我认为您应该按照以下方式重写代码。将您的pal
语句放在用户界面上方。在您自己的final
函数中包装用reactive({})
引用的所有数据子集。然后,您可以将leaflet()
添加到基本调用output$Plot
中。然后,您可以通过observe()
用自己的观察者更新用户输入,并用传单自己的更新功能leafletProxy()
pal <- colorNumeric(palette = "Reds", domain = c(0:1))
server <- function(input, output) {
final <- reactive({
data_subset <- subset(combine, ZIP.RANK %in% input$rank &
TYPE %in% input$type &
MARKET %in% input$market &
MEDIAN.HOUSING.VALUE %in% input$housevalue &
MEDIAN.FAMILY.INCOME %in% input$familyincome &
MEDIAN.HOUSE.BUYING.POWER %in% input$buyingpower &
ETHNICITY %in% input$ethnicity &
POPULATION.DENSITY %in% input$population &
MASTERS.DEGREE %in% input$masters &
ASSOCIATES.DEGREE %in% input$associate &
HIGH.SCHOOL.AGE.POPULATION %in% input$highschool &
EPS.CODE %in% input$epscode &
state %in% input$state &
ZIP.SCORE >= input$score[1] & ZIP.SCORE <= input$score[2])
})
})
output$plot <-renderLeaflet({
leaflet(data = combine) %>%
addProviderTiles('CartoDB')
})
observe({
leafletProxy("plot", data = final() %>%
addCircleMarkers(color = ~pal(final()$ZIP.SCORE), label=~final()$GEONAME) %>%
addLegend(title = "ZipScore", pal = pal, values = c(0:1),
position = "bottomright")
})
}