toLatex.numeric: LaTeX or Sweave friendly Formatting of Numbers

Description

Formats real numbers, possibly in scientific notation, with a given number of digits after the decimal point. Output can be used in LaTeX math mode, e.g., for printing numbers in a table, where each number has to be printed with the same number of digits after the decimal point, even if the last digits are zeros.

Usage

# S3 method for numeric
toLatex(object, digits = format.info(object)[2],
        scientific = format.info(object)[3] > 0, times = "\\cdot", ...)

Value

a character vector of the same length as object, containing the formatted numbers.

Arguments

object: a numeric vector.
digits: number of digits after the decimal point (for the mantissa if scientific). The default behaves the same as R's format().
scientific: logical indicating if scientific notation a * 10^k should be used. The default behaves the same as R's format().
times: character string indicating the LaTeX symbol to be used for the ‘times’ sign.
...: unused; for compatibility with toLatex.

Author

Alain Hauser

Examples

Run this code

xx <- pi * 10^(-9:9)

format(xx)
formatC(xx)

toLatex(xx) #-> scientific = TRUE is chosen
toLatex(xx, scientific=FALSE)

sapply(xx, toLatex)
sapply(xx, toLatex, digits = 2)