forestplot (version 3.1.3)

fp_insert_row: Insert/append rows into forestplot

Description

These functions are used for inserting or appending a row into a forestplot object. Can be used for inputting multiple rows. Just make sure that all elements are of equal length.

Usage

fp_insert_row(
  x,
  ...,
  mean = NULL,
  lower = NULL,
  upper = NULL,
  position = 1,
  is.summary = FALSE,
  boxsize = NA
)
fp_add_header(x, ..., position = 1, is.summary = TRUE)
fp_append_row(x, ..., position = "last", is.summary = FALSE)

Value

The foresplot object with the added rows

Arguments

x

The forestplot object

...

Either named arguments that correspond to the original column names or unnamed arguments that will map in appearing order.

mean

Either a mean or all the values if three columns (mean, lower, upper)

lower

A vector or matrix with the lower confidence interval

upper

A vector or matrix with the upper confidence interval

position

The row position to input at. Either a row number or "last".

is.summary

Whether the row is a summary.

boxsize

The box size for the drawn estimate line

See Also

Other graph modifiers: fp_add_lines(), fp_decorate_graph(), fp_set_style(), fp_set_zebra_style()

Other forestplot functions: forestplot(), fpColors(), fpDrawNormalCI(), fpLegend(), fpShapesGp(), fp_add_lines(), fp_decorate_graph(), fp_set_style(), fp_set_zebra_style()

Examples

base_data <- tibble::tibble(mean  = c(0.578, 0.165, 0.246, 0.700, 0.348, 0.139, 1.017),
                            lower = c(0.372, 0.018, 0.072, 0.333, 0.083, 0.016, 0.365),
                            upper = c(0.898, 1.517, 0.833, 1.474, 1.455, 1.209, 2.831),
                            study = c("Auckland", "Block", "Doran", "Gamsu",
                                      "Morrison", "Papageorgiou", "Tauesch"),
                            deaths_steroid = c("36", "1", "4", "14", "3", "1", "8"),
                            deaths_placebo = c("60", "5", "11", "20", "7", "7", "10"),
                            OR = c("0.58", "0.16", "0.25", "0.70", "0.35", "0.14", "1.02"))

base_data |>
  forestplot(labeltext = c(study, deaths_steroid, deaths_placebo, OR),
             clip = c(0.1, 2.5),
             xlog = TRUE) |>
  fp_add_header(study = c("", "Study"),
                deaths_steroid = c("Deaths", "(steroid)"),
                deaths_placebo = c("Deaths", "(placebo)"),
                OR = c("", "OR")) |>
  fp_append_row(mean  = 0.531,
                lower = 0.386,
                upper = 0.731,
                study = "Summary",
                OR = "0.53",
                is.summary = TRUE)