如何使用嵌入式反应式 object 添加次要行 header 以输出 table?
How to add a secondary row header to output table with an embedded reactive object?
这是 follow-on 或对 post
的改进
底部的 MWE 代码生成了一个非常漂亮的辅助列 header,其中嵌入了反应式 object。这有助于转换 table 的可理解性,它显示沿列 (x-axis) 的状态转换和沿行 (y-axis) 的状态转换。输出显示在下图的左侧。
我如何对带有嵌入式反应 object 的次要行 header 执行相同操作,显示 TO 周期 (transTo
object)?如下图右半部分所示。我愿意接受任何其他关于呈现可理解且 user-friendly 转换矩阵的建议。这种垂直文本对齐方式是我过去在 XLS 中呈现过渡 tables 的方式;如果垂直文本对齐在这种情况下不可行,我愿意接受任何解决方案!!
请注意完整的 transition-matrix 生成代码 expands/contracts 根据数据中唯一状态的数量自动生成。这个 MWE 代码在这个意义上是静态的,而完整的代码是动态的。
MWE 代码,在 ismirsehregal 的宝贵帮助下:
library(DT)
library(shiny)
library(htmltools)
library(data.table)
data <-
data.frame(
ID = c(1,1,1,2,2,2,3,3,3),
Period = c(1, 2, 3, 1, 2, 3, 1, 2, 3),
Values = c(5, 10, 15, 0, 2, 4, 3, 6, 9),
State = c("X0","X1","X2","X0","X2","X0", "X2","X1","X0")
)
numTransit <- function(x, from=1, to=3){
setDT(x)
unique_state <- unique(x$State)
all_states <- setDT(expand.grid(list(from_state = unique_state, to_state = unique_state)))
dcast(x[, .(from_state = State[from],
to_state = State[to]),
by = ID]
[,.N, c("from_state", "to_state")]
[all_states,on = c("from_state", "to_state")],
to_state ~ from_state, value.var = "N"
)
}
ui <- fluidPage(
tags$head(tags$style(".datatables .display {margin-left: 0;}")), # < left-align the table
h4(strong("Base data frame:")),
tableOutput("data"),
h4(strong("Transition table inputs:")),
numericInput("transFrom", "From period:", 1, min = 1, max = 3),
numericInput("transTo", "To period:", 2, min = 1, max = 3),
h4(strong("Output transition table:")),
DTOutput("resultsDT"),
)
server <- function(input, output, session) {
results <-
reactive({
results <- numTransit(data, input$transFrom, input$transTo) %>%
replace(is.na(.), 0) %>%
bind_rows(summarise_all(., ~(if(is.numeric(.)) sum(.) else "Sum")))
results <- cbind(results, Sum = rowSums(results[,-1]))
})
output$data <- renderTable(data)
output$resultsDT <- renderDT(server=FALSE, {
req(results())
datatable(
data = results(),
rownames = FALSE,
filter = 'none',
container = tags$table(
class = 'display',
tags$thead(
tags$tr(
tags$th(colspan = 1, ''),
tags$th(colspan = 10, sprintf('From state where initial period is = %s', input$transFrom))
),
tags$tr(
lapply(colnames(results()), tags$th)
)
)
),
options = list(scrollX = F
, dom = 'ft'
, lengthChange = T
, pagingType = "numbers" # hides Next and Previous buttons
, autoWidth = T
, info = FALSE # hide the "Showing 1 of 2..." at bottom of table
, searching = FALSE # removes search box
),
class = "display"
)
})
}
shinyApp(ui, server)
请参阅 post ,它提供了在转换矩阵中显示反应性 to/from 值的解决方案。我相信它比本 OP 中要求的内容更清晰、更易于理解 table。
这是 follow-on 或对 post
底部的 MWE 代码生成了一个非常漂亮的辅助列 header,其中嵌入了反应式 object。这有助于转换 table 的可理解性,它显示沿列 (x-axis) 的状态转换和沿行 (y-axis) 的状态转换。输出显示在下图的左侧。
我如何对带有嵌入式反应 object 的次要行 header 执行相同操作,显示 TO 周期 (transTo
object)?如下图右半部分所示。我愿意接受任何其他关于呈现可理解且 user-friendly 转换矩阵的建议。这种垂直文本对齐方式是我过去在 XLS 中呈现过渡 tables 的方式;如果垂直文本对齐在这种情况下不可行,我愿意接受任何解决方案!!
请注意完整的 transition-matrix 生成代码 expands/contracts 根据数据中唯一状态的数量自动生成。这个 MWE 代码在这个意义上是静态的,而完整的代码是动态的。
MWE 代码,在 ismirsehregal 的宝贵帮助下:
library(DT)
library(shiny)
library(htmltools)
library(data.table)
data <-
data.frame(
ID = c(1,1,1,2,2,2,3,3,3),
Period = c(1, 2, 3, 1, 2, 3, 1, 2, 3),
Values = c(5, 10, 15, 0, 2, 4, 3, 6, 9),
State = c("X0","X1","X2","X0","X2","X0", "X2","X1","X0")
)
numTransit <- function(x, from=1, to=3){
setDT(x)
unique_state <- unique(x$State)
all_states <- setDT(expand.grid(list(from_state = unique_state, to_state = unique_state)))
dcast(x[, .(from_state = State[from],
to_state = State[to]),
by = ID]
[,.N, c("from_state", "to_state")]
[all_states,on = c("from_state", "to_state")],
to_state ~ from_state, value.var = "N"
)
}
ui <- fluidPage(
tags$head(tags$style(".datatables .display {margin-left: 0;}")), # < left-align the table
h4(strong("Base data frame:")),
tableOutput("data"),
h4(strong("Transition table inputs:")),
numericInput("transFrom", "From period:", 1, min = 1, max = 3),
numericInput("transTo", "To period:", 2, min = 1, max = 3),
h4(strong("Output transition table:")),
DTOutput("resultsDT"),
)
server <- function(input, output, session) {
results <-
reactive({
results <- numTransit(data, input$transFrom, input$transTo) %>%
replace(is.na(.), 0) %>%
bind_rows(summarise_all(., ~(if(is.numeric(.)) sum(.) else "Sum")))
results <- cbind(results, Sum = rowSums(results[,-1]))
})
output$data <- renderTable(data)
output$resultsDT <- renderDT(server=FALSE, {
req(results())
datatable(
data = results(),
rownames = FALSE,
filter = 'none',
container = tags$table(
class = 'display',
tags$thead(
tags$tr(
tags$th(colspan = 1, ''),
tags$th(colspan = 10, sprintf('From state where initial period is = %s', input$transFrom))
),
tags$tr(
lapply(colnames(results()), tags$th)
)
)
),
options = list(scrollX = F
, dom = 'ft'
, lengthChange = T
, pagingType = "numbers" # hides Next and Previous buttons
, autoWidth = T
, info = FALSE # hide the "Showing 1 of 2..." at bottom of table
, searching = FALSE # removes search box
),
class = "display"
)
})
}
shinyApp(ui, server)
请参阅 post