Shiny 闪亮与动态图包
我正在尝试使用闪亮的动态图。我试图生成一个图表,根据输入变量显示时间序列数据。数据样本如下所示:Shiny 闪亮与动态图包,shiny,dygraphs,Shiny,Dygraphs,我正在尝试使用闪亮的动态图。我试图生成一个图表,根据输入变量显示时间序列数据。数据样本如下所示: date product sold 1 2015-01-01 a 1 2 2015-01-01 b 20 3 2015-02-01 a 2 4 2015-02-01 b 15 5 2015-03-01 a 3 6 2015-03-01 b 10 7 2015-04-
date product sold
1 2015-01-01 a 1
2 2015-01-01 b 20
3 2015-02-01 a 2
4 2015-02-01 b 15
5 2015-03-01 a 3
6 2015-03-01 b 10
7 2015-04-01 a 4
8 2015-04-01 b 5
9 2015-05-01 a 5
10 2015-05-01 b 1
我想要的是一个带有产品变量复选框控件的时间序列图(查看产品a、b或两者)
用户界面和服务器代码为(shinydashboard软件包):
库(闪亮)
图书馆(动态图)
图书馆(dplyr)
图书馆(xts)
ui在这部分代码中,您必须小心:
data_f <- filter(data_products,
product==input$type)
已编辑:
如果您希望在选择a
和b
时有两行,则必须更改数据格式-必须从长到宽。这样做的原因是,您可以使用xts
轻松创建一个双变量时间序列,dygraph
将绘制两条单独的线
使用Hadley Wickham提供的Reformae2
软件包可以轻松实现从长到宽的转换
# Copy data from your example
data_products <- read.table(con<-file("clipboard"),header=T)
data_products$product <- as.factor(data_products$product)
# Reshape
data_products <- dcast(data_products, date ~ product)
由于数据的新性质,您必须稍微更改服务器端的代码。我在代码中留下了注释
ui <- dashboardPage(
skin = "black",
dashboardHeader(title = "title"),
dashboardSidebar(
sidebarMenu(
menuItem("Results", tabName = "Result1", icon = icon("th"))
)),
dashboardBody(
tabItems(
tabItem(tabName = "Result1",
fluidRow(
dygraphOutput("Graph")
),
sidebarPanel(
uiOutput("output1")
)
)
)
)
)
server <- function(input, output) {
output$Graph <- renderDygraph({
req(input$type) # require that input$type is available
# Due to the wide format we have to select columns
data_f <- data_products[, c("date", input$type)]
# univariate or bivariate time series
xts(data_f[-1], as.Date(data_f$date, format = "%Y-%m-%d")) %>%
dygraph()
})
output$output1 <- renderUI({
# Since we now have data in wide format, the choices are
# the names of columns (expect date)
checkboxGroupInput("type", "Choose product",
choices = names(data_products)[-1])
})
}
shinyApp(ui, server)
ui请告诉我们您认为哪种方法是最好的方法,以及由此产生的错误。谢谢,它很有效!还有一件事。如果我现在在复选框中同时选择“a”和“b”,则只会显示一行,而不是两行。。。我知道这些都是初学者的问题,但我是新手。谢谢。我更新了上面的帖子。事实证明,解决方案非常简单,因为它只需要更改数据的格式。这太棒了!我找到的最好答案是——令人惊讶的是,在shiny+动态图上没有太多(特别是在这个多选问题上)。谢谢
# Copy data from your example
data_products <- read.table(con<-file("clipboard"),header=T)
data_products$product <- as.factor(data_products$product)
# Reshape
data_products <- dcast(data_products, date ~ product)
date a b
1 2015-01-01 1 20
2 2015-02-01 2 15
3 2015-03-01 3 10
4 2015-04-01 4 5
5 2015-05-01 5 1
ui <- dashboardPage(
skin = "black",
dashboardHeader(title = "title"),
dashboardSidebar(
sidebarMenu(
menuItem("Results", tabName = "Result1", icon = icon("th"))
)),
dashboardBody(
tabItems(
tabItem(tabName = "Result1",
fluidRow(
dygraphOutput("Graph")
),
sidebarPanel(
uiOutput("output1")
)
)
)
)
)
server <- function(input, output) {
output$Graph <- renderDygraph({
req(input$type) # require that input$type is available
# Due to the wide format we have to select columns
data_f <- data_products[, c("date", input$type)]
# univariate or bivariate time series
xts(data_f[-1], as.Date(data_f$date, format = "%Y-%m-%d")) %>%
dygraph()
})
output$output1 <- renderUI({
# Since we now have data in wide format, the choices are
# the names of columns (expect date)
checkboxGroupInput("type", "Choose product",
choices = names(data_products)[-1])
})
}
shinyApp(ui, server)