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jthomasmock / gtExtras

A Collection of Helper Functions for the gt Package.
https://jthomasmock.github.io/gtExtras/
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Feature Request: Forest Plot #22

Closed uriahf closed 3 years ago

uriahf commented 3 years ago

I'm looking forward for this package to be in CRAN, it looks like a game changer to me!

I think that it would be extremely helpful to have a function for odds ratio visualization. I know that some alternatives exist (kable), but I can't find any solution for gt tables.

jthomasmock commented 3 years ago

Howdy! A generic confidence interval plot type is available. This allows for a basic version of a forest plot, whether raw CI or odds ratio.

https://jthomasmock.github.io/gtExtras/reference/gt_plt_conf_int.html

uriahf commented 3 years ago

This is awsome! Is there any way to add an vertical reference line?

jthomasmock commented 3 years ago

Thanks! There is not currently, I'm exploring ability to "cross rows" with a reference line, but it is more likely that a repeated vertical line will come first.

uriahf commented 3 years ago

For me as a user a reference line is extremly important, otherwise it's difficult to compare visually the confidence interval to the baseline.

Thanks!

jthomasmock commented 3 years ago

Latest version below, given the many methods to calculate a reference line it is up to the user to manually define a reference line that will be shared across rows.

library(dplyr, warn.conflicts = FALSE)
library(gtExtras)
ci_table <- generate_df(n = 50, n_grps = 3,
  mean = c(10, 15, 20), sd = c(10, 10, 10),
  with_seed = 37) %>%
    dplyr::group_by(grp) %>%
    dplyr::summarise(n = dplyr::n(),
              avg = mean(values),
              sd = sd(values),
              list_data = list(values)) 

ci_table %>%
  gt::gt() %>%
  gt_plt_conf_int(list_data, ci = 0.9, ref_line = 14) %>% 
  gt::gtsave('test.png')

Created on 2021-10-25 by the reprex package (v2.0.1)

uriahf commented 3 years ago

This is exactly what I needed, thanks!