toLatex.numeric function

LaTeX or Sweave friendly Formatting of Numbers

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.

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

Arguments

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

Note

We use digits for round, i.e., round after the decimal point on purpose, rather than signif()icant digit rounding as used by print() or format().

Returns

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

Author(s)

Alain Hauser

See Also

pretty10exp which gives expressions similar to our scientific=TRUE. toLatex with other methods.

Examples

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)