R/report_text.R

In report: Automated Reporting of Results and Statistical Models

#' Report a textual description of an object
#'
#' Creates text containing a description of the parameters of R objects (see
#' list of supported objects in [report()]).
#'
#' @inheritParams report
#' @inheritParams report_table
#' @param table A table obtained via `report_table()`. If not provided,
#'   will run it.
#'
#' @return An object of class [report_text()].
#'
#' @examples
#' library(report)
#'
#' # Miscellaneous
#' r <- report_text(sessionInfo())
#' r
#' summary(r)
#'
#' # Data
#' report_text(iris$Sepal.Length)
#' report_text(as.character(round(iris$Sepal.Length, 1)))
#' report_text(iris$Species)
#' report_text(iris)
#'
#' # h-tests
#' report_text(t.test(iris$Sepal.Width, iris$Sepal.Length))
#'
#' # ANOVA
#' r <- report_text(aov(Sepal.Length ~ Species, data = iris))
#' r
#' summary(r)
#'
#' # GLMs
#' r <- report_text(lm(Sepal.Length ~ Petal.Length * Species, data = iris))
#' r
#' summary(r)
#'
#' @examplesIf requireNamespace("lme4", quietly = TRUE)
#' \donttest{
#' library(lme4)
#' model <- lme4::lmer(Sepal.Length ~ Petal.Length + (1 | Species), data = iris)
#' r <- report_text(model)
#' r
#' summary(r)
#' }
#'
#' @examplesIf requireNamespace("rstanarm", quietly = TRUE)
#' \donttest{
#' # Bayesian models
#' library(rstanarm)
#' model <- suppressWarnings(stan_glm(mpg ~ cyl + wt, data = mtcars, refresh = 0, iter = 600))
#' r <- report_text(model)
#' r
#' summary(r)
#' }
#' @export
report_text <- function(x, table = NULL, ...) {
  UseMethod("report_text")
}


# METHODS -----------------------------------------------------------------

#' @rdname as.report
#' @export
as.report_text <- function(x, ...) {
  UseMethod("as.report_text")
}

#' @export
as.report_text.default <- function(x, summary = NULL, ...) {
  class(x) <- unique(c("report_text", class(x)))
  attributes(x) <- c(attributes(x), list(...))
  if (!is.null(summary)) {
    class(summary) <- unique(c("report_text", class(summary)))
    attr(x, "summary") <- summary
  }
  x
}

#' @export
as.report_text.report <- function(x, summary = NULL, ...) {
  class(x) <- class(x)[class(x) != "report"]

  if (is.null(summary) || isFALSE(summary)) {
    x
  } else if (isTRUE(summary)) {
    summary(x)
  }
}


#' @export
summary.report_text <- function(object, ...) {
  if (is.null(attributes(object)$summary)) {
    object
  } else {
    attributes(object)$summary
  }
}

#' @export
print.report_text <- function(x, width = NULL, ...) {
  x <- datawizard::text_format(as.character(x), width = width, ...)
  cat(x)
}