f_text: Turn RHS of formula into a string/label.

In lazyeval: Lazy (Non-Standard) Evaluation

Description

Equivalent of expr_text() and expr_label() for formulas.

Usage

f_text(x, width = 60L, nlines = Inf)

f_label(x)

Arguments

x	A formula.
width	Width of each line
nlines	Maximum number of lines to extract.

Examples

f <- ~ a + b + bc
f_text(f)
f_label(f)

# Names a quoted with ``
f_label(~ x)
# Strings are encoded
f_label(~ "a\nb")
# Long expressions are collapsed
f_label(~ foo({
  1 + 2
  print(x)
}))

lazyeval documentation built on May 2, 2019, 2:11 a.m.