在 metafor 中为森林图添加数据间隙

Question

我是 R 的新手，正在使用 metafor 包的 forest.default 实现创建一个包含数据集的森林图（我只有 x、ci.ub 和 ci.ub 在森林图的数据中）

我快完成了，我的情节看起来类似于 this, except that my data goes over the black horizontal border on top of the graph. I worked with that, but I have one forest plot always on the same row as that of the horizontal border, and superimposing with a white line also doesn't help as mentioned 。

我的问题是：如何为我的数据集添加间隙，以便森林图本身将黑色边框向上移动？This is the image of the plot currently with the border (currently superimposed with a white line) cutting through my data

谢谢！

编辑：这是代码片段

 require(metafor)
  metafor::forest(
    x = as.vector(t(data_set[, forest_plot$mean])),
    xlim = c(min_x_value - 2 * (plot_span), max_x_value), 
    alim = c(min_x_value , max_x_value),
    ci.lb = as.vector(t(data_set[, forest_plot$low])),
    ci.ub = as.vector(t(data_set[, forest_plot$high])),
    col = "darkgoldenrod4",
    ilab = display_data_matrix,
    ilab.pos = 4,
    annotate = FALSE,
    slab = NA,
    ilab.xpos = c(min_x_value - 2 * plot_span, min_x_value - 1.5 * plot_span, min_x_value - 0.75 * plot_span, min_x_value - 0.25 * plot_span),
    rows = row_groupings,
    xlab = paste(measure, ep_type, ep)
  )
  # print("e")
  text(min_x_value - 2* plot_span, subgroup_rows, col = "brown3", pos = 4 , subgroup_titles, cex = 1.2)
  header_line <- dim(data_set)[1] + gaps + 1
  text( c(min_x_value - 2 * plot_span, 
          min_x_value - 1.5 * plot_span,
          min_x_value - 0.75 * plot_span,
          min_x_value - 0.25 * plot_span),
        pos = 4,
        cex = 1.4,
        col = "darkorchid4",
        header_line, c("Trial", "Randomized Treatment", "N Arm", "Time") )

  abline(h=dim(data_set)[1]+1, lwd=2, col="white")

Answer 1

您需要调整 ylim 参数。执行以下操作：

sav <- forest(x = [...])
sav

（其中 [...] 是您的所有其余代码）。然后查看 ylim 的默认值是什么。通过将 2 添加到上限值进行调整（因为您为子组标题添加了两行），然后在调用 forest().

时使用 ylim=c(lower,upper)

在 metafor 中为森林图添加数据间隙

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