我使用以下变量生成有关疾病的数据框:
我的ui在这里:
library(shiny)
library(dplyr)
library(lubridate)
library(ggplot2)
library(scales)
Disease<-data.frame(Date=seq(as.Date("2015/1/1"), as.Date("2017/1/1"), "days"),Cases=rep(1))
Disease$Week<-as.Date(cut(Disease$Date,breaks="week",start.on.monday = TRUE))
Disease$Month<-as.Date(cut(Disease$Date,breaks="month"))
Disease$Year<-as.Date(cut(Disease$Date,breaks="year"))
ui <- fluidPage(
dateRangeInput("daterange", "Choice the date",
start = min(Disease$Date),
end = max(Disease$Date),
min = min(Disease$Date),
max = max(Disease$Date),
separator = " - ", format = "dd/mm/yy",
startview = 'Month', language = 'fr', weekstart = 1),
selectInput(inputId = 'Time_unit',
label='Time_unit',
choices=c('Week','Month','Year'),
selected='Month'),
plotOutput("Disease"))
我希望创建一个根据时间单位(即周,月,年)作出反应的条形图,并按时间单位格式化数据
您将在下面找到服务器的代码(但它不起作用):
server <- function(input, output) {
dateRangeInput<-reactive({
dataset= subset(Disease, Date >= input$daterange[1] & Date <=
input$daterange[2])
return(dataset)
})
selectInput= reactive({
summarize(group_by(dateRangeInput(),
period = switch(input$Time_unit,
"Week"=Disease$Week,
"Month" = Disease$Month,
"Year" = Disease$Year)))
})
output$Disease <-renderPlot({
ggplot(data=selectInput(), aes_string(x="period",x="Cases"))
+ stat_summary(fun.y = sum, geom = "bar")
+ labs(title="Disease", y ="Number of cases")
+theme_classic()
+theme(plot.title = element_text(hjust = 0.5))
})
}
shinyApp (ui = ui, server = server)
如果我选择周,月或年,你会发现我想要获得的以下条形图:
抱歉&#34;按年份&#34;,我无法发布2个以上的链接
答案 0 :(得分:0)
您可以检查此代码,它的工作方式如下:
library(shiny)
library(dplyr)
library(lubridate)
library(ggplot2)
library(scales)
Disease<-data.frame(Date=seq(as.Date("2015/1/1"), as.Date("2017/1/1"), "days"),Cases=rep(1))
Disease <- Disease %>% mutate(Week = format(Date, "%Y-%m-%U"),Month = format(Date, "%Y-%m"), Year = format(Date, "%Y"))
ui <- fluidPage(
dateRangeInput("daterange", "Choice the date",
start = min(Disease$Date),
end = max(Disease$Date),
min = min(Disease$Date),
max = max(Disease$Date),
separator = " - ", format = "dd/mm/yy",
startview = 'Month', language = 'fr', weekstart = 1),
selectInput(inputId = 'Time_unit',
label='Time_unit',
choices=c('Week','Month','Year'),
selected='Month'),
plotOutput("Disease"))
server <- function(input, output) {
dateRangeInput<-reactive({
dataset <- subset(Disease, Date >= input$daterange[1] & Date <= input$daterange[2])
dataset
})
selectInput= reactive({
dataset <- dateRangeInput() %>% group_by_(input$Time_unit) %>% summarise(Sum = sum(Cases))
print(head(dataset))
dataset
})
output$Disease <-renderPlot({
ggplot(data=selectInput(), aes_string(x=input$Time_unit,y="Sum")) + geom_bar(stat="identity") +
labs(title="Disease", y ="Number of cases") +
theme_classic() +
theme(plot.title = element_text(hjust = 0.5))
})
}
shinyApp (ui = ui, server = server)
Plot对Time_unit
输入有反应,你只需要对轴文本进行小调整即可。
P.S。您到图像的第二个链接
<周>
无效 - &gt;得到一个空的空间。