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与GGPLOT2和闪亮实现这个类Date对象所进行的工作的日期范围两个输入选择,并有情节调节X(日期值)相应地调整,但是,我在下面得到这个错误:无效输入:date_trans只有
Invalid input: date_trans works with objects of class Date only
我该如何解决这个问题?这里是我的代码如下:
library(shiny)
library(ggplot2)
library(dplyr)
data <- read.csv("C:/Users/user/Documents/R/R-3.3.1/R CODE/MyData2.csv", header = TRUE) # reading .csv
newdata <- as.data.frame(data) # converting csv to DF
newdata$event_date <- as.factor(newdata$event_date)
str(newdata)
ui <- fluidPage(
selectInput("select", label = h3("Select Model"),
choices = list("Toyota Camry", "Nissan Altima")),
dateInput("strtdate", "Select start date:"),
dateInput("enddate", "Select end date:"),
plotOutput("hist")
)
server <- function(input, output) {
output$hist <- renderPlot({
df <- newdata %>% select(event_date,PlatformName,total_events) %>% filter(PlatformName == input$select) %>% group_by(event_date, PlatformName) %>% summarize(total_events = sum(total_events))
gg <- ggplot(df, aes(x= event_date, y = total_events, group =PlatformName)) +
geom_line(aes(color = PlatformName)) +
labs(title="Total Events vs. Time", x="Event Dates", y="Total Events") +
aes(xmin = input$strtdate,
xmax = input$enddate) +
theme(plot.title=element_text(size=20, face="bold", hjust = 0.5),
axis.text.x=element_text(size=10, angle=90,hjust=1,vjust=0.5),
axis.text.y=element_text(size=5),
axis.title.x=element_text(size=10),
axis.title.y=element_text(size=10))
print(gg)
})
}
shinyApp(ui = ui, server = server)
寻求帮助时,你应该包括[重复的例子(http://stackoverflow.com/questions/5963269/how -to-使-A-大-R再现的-例如用样本的输入数据)。如果你在你的数据日期值,确保它们解析为日期(无论他们有'级()''Date'或'POSIXct'或东西)。现在,你似乎使他们的因素而这不会使事情更容易对R理解。 – MrFlick