This function is used to insert equations into flextable with function compose(). It should be used inside a call to as_paragraph().

To use this function, package 'equatags' is required; also equatags::mathjax_install() must be executed only once to install necessary dependencies.

as_equation(x, width = 1, height = 0.2, unit = "in")

Arguments

x

values containing the 'MathJax' equations

width, height

size of the resulting equation in inches

unit

unit for width and height, one of "in", "cm", "mm".

See also

Other chunk elements for paragraph: as_bracket(), as_b(), as_chunk(), as_highlight(), as_image(), as_i(), as_sub(), as_sup(), colorize(), gg_chunk(), hyperlink_text(), linerange(), lollipop(), minibar(), plot_chunk()

Examples

library(flextable)
if(require("equatags") && mathjax_available()){

eqs <- c(
  "(ax^2 + bx + c = 0)",
  "a \\ne 0",
  "x = {-b \\pm \\sqrt{b^2-4ac} \\over 2a}")
df <- data.frame(formula = eqs)
df


ft <- flextable(df)
ft <- compose(
  x = ft, j = "formula",
  value = as_paragraph(as_equation(formula, width = 2, height = .5)))
ft <- align(ft, align = "center", part = "all")
ft <- width(ft, width = 2)
ft

}
#> Loading required package: equatags