在kableExtra表中合并迷你图

Question

我正在尝试创建一个带有副标题和迷你图的表。

我可以用kableExtra包创建带有副标题的表。而且我可以使用formattable和sparkline包创建带有迷你图的表。

但是，我无法将两者结合起来。有办法吗 我看到了this，但没有帮助我。

library(sparkline)
library(tidyverse)
library(formattable)
library(kableExtra)

df <- data.frame(stringsAsFactors=FALSE,
          V1 = c("country", "A", "B", "C"),
          V2 = c(2000L, 100L, 600L, 50L),
          V3 = c(2001L, 200L, 500L, 60L),
          V4 = c(2002L, 300L, 400L, 70L),
          V5 = c(2003L, 400L, 300L, 80L),
          V6 = c(2004L, 500L, 200L, 90L),
          V7 = c(2005L, 600L, 100L, 100L)
)

df.names <- df[1,]
names(df) <- df.names
df <- df[-1,]

graph <- df %>% 
  group_by(country) %>% 
  gather(key=year, value=value, -country) %>% 
  summarise(graph=spk_chr(
    value, 
    chartRangeMin = 0,
    type="line"))

df2 <- left_join(df, graph, by=c("country"))


df2 %>%
  formattable::formattable(align=c("l")) %>% 
  as.htmlwidget() %>% 
  spk_add_deps()

df2 %>%
  kable("html", caption="Title", escape=T) %>% 
  kable_styling("striped", full_width = F) %>%
  group_rows("group1", 1, 2) %>%
  group_rows("group2", 3,3)

df2 %>%
  kable("html", caption="Title", escape=T) %>% 
  kable_styling("striped", full_width = F) %>%
  group_rows("group1", 1, 2) %>%
  group_rows("group2", 3,3) %>% 
  formattable::formattable(align=c("l")) %>% 
  as.htmlwidget() %>% 
  spk_add_deps()

创建错误：

Error in create_obj(x, "formattable", list(formatter = formatter, format = list(...),  : 
  argument "formatter" is missing, with no default

请注意，我同时尝试了kable("html", caption="Title", escape=TRUE) and escape=FALSE

Answer 1

我遇到了同样的问题。这对我来说是固定的：

library(sparkline)
library(tidyverse)
library(formattable)
library(kableExtra)
library(shiny)
library(htmltools)

df <- data.frame(stringsAsFactors=FALSE,
             V1 = c("country", "A", "B", "C"),
             V2 = c(2000L, 100L, 600L, 50L),
             V3 = c(2001L, 200L, 500L, 60L),
             V4 = c(2002L, 300L, 400L, 70L),
             V5 = c(2003L, 400L, 300L, 80L),
             V6 = c(2004L, 500L, 200L, 90L),
             V7 = c(2005L, 600L, 100L, 100L)
)

df.names <- df[1,]
names(df) <- df.names
df <- df[-1,]

graph <- df %>% 
  group_by(country) %>% 
  gather(key=year, value=value, -country) %>% 
  summarise(graph=spk_chr(
    value, 
    chartRangeMin = 0,
    type="line"))

df2 <- left_join(df, graph, by=c("country"))

df2 %>%
formattable::format_table(
  x = .,
  formatters = list(
    align=c("l")
  )
) %>%
  kable_styling("striped", full_width = F) %>%
  group_rows("group1", 1, 2) %>%
  group_rows("group2", 3,3) %>%
  htmltools::HTML() %>%
  shiny::div() %>%
  sparkline::spk_add_deps()

解决方案是formattable::format_table()返回一个knitr_kable对象。