R格式化设置行高

Question

我正在使用格式table，然后生成 table 并将其作为 html 小部件粘贴到 pdf 文档，如您从代码中看到的那样。但是我想知道是否有任何方法可以更改 table!

的行高

library("htmltools")
library("webshot")  
library(formattable)
DF <- data.frame(Ticker=c("", "", "", "IBM", "AAPL", "MSFT"),
                 Name=c("Dow Jones", "S&P 500", "Technology", 
                        "IBM", "Apple", "Microsoft"),
                 Value=accounting(c(15988.08, 1880.33, 50, 
                                    130.00, 97.05, 50.99)),
                 Change=percent(c(-0.0239, -0.0216, 0.021, 
                                  -0.0219, -0.0248, -0.0399)))

################################## FUNCTIONS ##################################
unit.scale = function(x) (x - min(x)) / (max(x) - min(x))
export_formattable <- function(f, file, width = "100%", height = NULL, 
                               background = "white", delay = 0.2)
    {
      w <- as.htmlwidget(f, width = width, height = height)
      path <- html_print(w, background = background, viewer = NULL)
      url <- paste0("file:///", gsub("\\", "/", normalizePath(path)))
      webshot(url,
              file = file,
              selector = ".formattable_widget",
              delay = delay)
    }
###############################################################################

FT <- formattable(DF, align =c("l","c","r","c"), list(
  Name=formatter("span", 
                 style = x ~ ifelse(x == "Technology", style(font.weight = "bold"), NA)), #NOT APPLIED when we output to PNG with the function!
  #Value = color_tile("white", "orange"),
  Value = color_bar("orange" , fun = unit.scale
                    ),
  Change = formatter("span", 
                     style = x ~ style(color = ifelse(x < 0 , "red", "green"), "font.size" = "18px"), 
                     x ~ icontext(ifelse(x < 0, "arrow-down", "arrow-up"), x)
                     )),
  table.attr = 'style="font-size: 18px; font-family: Calibri";\"')

FT
#OUTPUT the table in the document as an image!
export_formattable(FT,"/outputpath/FT.png")

如您所见，行之间有相当大的间隙，这在 html 文档中是可以的，但在 pdf 中看起来很奇怪。我已经检查了文档和网络，没有直接的答案。

我怎样才能减少所有行的 table 高度，即使我不想设置任何 space 并且让行内容碰撞“接触”分隔行线。

Answer 1

您可以删除填充以使行高尽可能紧凑：

library(tidyverse)
library(formattable)
library(htmlwidgets)

scores <- data.frame(id = 1:5,
                     prev_score = c(10, 8, 6, 8, 8),
                     cur_score = c(8, 9, 7, 8, 9),
                     change = c(-2, 1, 1, 0, 1))


formattable(scores) %>%
  as.htmlwidget() %>%
  prependContent(tags$style("td { padding: 0px  !important;}"))

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