r - 使用 gtsummary 包的宽格式多项逻辑回归结果表

Question

我有一个有四个结果的因变量。我使用 mlogit 包进行多项逻辑回归。

当我尝试使用 gtsummary 包呈现结果时，我的多项逻辑回归结果堆叠在一起（参见下面的代码和表格）。

无论如何，是否只使用一组标签来将结果并排排列在一行中，而不是像下表那样堆叠在一起？

# load packages
library(gtsummary)
library(nnet)

# dummy data 
crime <-data.frame(city = sample(c("SF", "AR", "NYC","MN"),13000,replace = TRUE),
                   year = sample(as.factor(c(1990, 2000, 1999, 1989)),13000,replace = TRUE)
                   )

# multinom model tabulated with gtsummary  
multinom(city ~ year, data = crime) %>%
  tbl_regression(exponentiate = T)

Answer 1

默认情况下，多项模型将以长格式打印。

我编写了一个小函数来将结果转换为宽，并将其保存为 GitHub Gist。https://gist.github.com/ddsjoberg/a55afa74ac58e1f895862fcabab62406

set.seed(20210511)
library(gtsummary)
library(magrittr)

multinom_pivot_wider <- function(x) {
  # check inputs match expectatations
  if (!inherits(x, "tbl_regression") || !inherits(x$model_obj, "multinom")) {
    stop("`x=` must be class 'tbl_regression' summary of a `nnet::multinom()` model.")
  }
  
  # create tibble of results
  df <- tibble::tibble(outcome_level = unique(x$table_body$groupname_col))
  df$tbl <- 
    purrr::map(
      df$outcome_level,
      function(lvl) {
        gtsummary::modify_table_body(
          x, 
          ~dplyr::filter(.x, .data$groupname_col %in% lvl) %>%
            dplyr::ungroup() %>%
            dplyr::select(-.data$groupname_col)
        )
      }
    )
  
  tbl_merge(df$tbl, tab_spanner = paste0("**", df$outcome_level, "**"))
}

# dummy data
crime <-
  data.frame(
    city = sample(c("SF", "AR", "NYC", "MN"), 13000, replace = TRUE),
    year = sample(as.factor(c(1990, 2000, 1999, 1989)), 13000, replace = TRUE)
  )

# multinom model tabulated with gtsummary
tbl <-
  nnet::multinom(city ~ year, data = crime) %>%
  tbl_regression(exponentiate = TRUE) %>%
  multinom_pivot_wider()