Teal Module: Logistic Regression

Usage

tm_t_logistic(
  label,
  dataname,
  parentname = ifelse(inherits(arm_var, "data_extract_spec"),
    teal.transform::datanames_input(arm_var), "ADSL"),
  arm_var = NULL,
  arm_ref_comp = NULL,
  paramcd,
  cov_var = NULL,
  avalc_var = teal.transform::choices_selected(teal.transform::variable_choices(dataname,
    "AVALC"), "AVALC", fixed = TRUE),
  conf_level = teal.transform::choices_selected(c(0.95, 0.9, 0.8), 0.95, keep_order =
    TRUE),
  pre_output = NULL,
  post_output = NULL,
  basic_table_args = teal.widgets::basic_table_args()
)

Arguments

label

(character)
menu item label of the module in the teal app.

dataname

(character)
analysis data used in teal module.

parentname

(character)
parent analysis data used in teal module, usually this refers to ADSL.

arm_var

(teal.transform::choices_selected() or teal.transform::data_extract_spec()) or NULL
object with all available choices and preselected option for variable names that can be used as arm_var. It defines the grouping variable(s) in the results table. If there are two elements selected for arm_var, second variable will be nested under the first variable. arm_var is optional, when being NULL, no arm or treatment variable is included in the logistic model.

arm_ref_comp

optional, (list)
If specified it must be a named list with each element corresponding to an arm variable in ADSL and the element must be another list (possibly with delayed teal.transform::variable_choices() or delayed teal.transform::value_choices() with the elements named ref and comp that the defined the default reference and comparison arms when the arm variable is changed.

paramcd

(choices_selected or data_extract_spec)
variable value designating the studied parameter.

cov_var

(choices_selected or data_extract_spec)
object with all available choices and preselected option for the covariates variables.

avalc_var

(teal.transform::choices_selected() or teal.transform::data_extract_spec())
object with all available choices and preselected option for the analysis variable (categorical).

conf_level

(choices_selected)
object with all available choices and preselected option for the confidence level, each within range of (0, 1).

pre_output

optional, (shiny.tag)
with text placed before the output to put the output into context. For example a title.

post_output

optional, (shiny.tag)
with text placed after the output to put the output into context. For example the shiny::helpText() elements are useful.

basic_table_args

optional, (basic_table_args)
object created by teal.widgets::basic_table_args() with settings for the module table. The argument is merged with option teal.basic_table_args and with default module arguments (hard coded in the module body).

For more details, see the vignette: vignette("custom-basic-table-arguments", package = "teal.widgets").

Examples

library(scda)
library(dplyr)

synthetic_cdisc_data_latest <- synthetic_cdisc_data("latest")
ADSL <- synthetic_cdisc_data_latest$adsl
ADRS <- synthetic_cdisc_data_latest$adrs %>%
  filter(PARAMCD %in% c("BESRSPI", "INVET"))

arm_ref_comp <- list(
  ACTARMCD = list(
    ref = "ARM B",
    comp = c("ARM A", "ARM C")
  ),
  ARM = list(
    ref = "B: Placebo",
    comp = c("A: Drug X", "C: Combination")
  )
)

app <- init(
  data = cdisc_data(
    cdisc_dataset("ADSL", ADSL,
      code = "synthetic_cdisc_data_latest <- synthetic_cdisc_data('latest')
        ADSL <- synthetic_cdisc_data_latest$adsl"
    ),
    cdisc_dataset("ADRS", ADRS,
      code = "synthetic_cdisc_data_latest <- synthetic_cdisc_data('latest')
        ADRS <- synthetic_cdisc_data_latest$adrs %>%
        filter(PARAMCD %in% c('BESRSPI', 'INVET'))"
    )
  ),
  modules = modules(
    tm_t_logistic(
      label = "Logistic Regression",
      dataname = "ADRS",
      arm_var = choices_selected(
        choices = variable_choices(ADRS, c("ARM", "ARMCD")),
        selected = "ARM"
      ),
      arm_ref_comp = arm_ref_comp,
      paramcd = choices_selected(
        choices = value_choices(ADRS, "PARAMCD", "PARAM"),
        selected = "BESRSPI"
      ),
      cov_var = choices_selected(
        choices = c("SEX", "AGE", "BMRKR1", "BMRKR2"),
        selected = "SEX"
      )
    )
  )
)
#> [INFO] 2022-10-14 09:10:52.0441 pid:3139 token:[] teal.modules.clinical Initializing tm_t_logistic
if (FALSE) {
shinyApp(ui = app$ui, server = app$server)
}