Generate x +/- y terms in table. — PlusMinus • tables

This function generates a component of a table formula to output two columns separated by a +/- sign. It is designed only for LaTeX output.

PlusMinus(x, y, head, xhead, yhead, digits = 2, 
          character.only = FALSE, ...)

Arguments

x,y: Expressions to be displayed in the columns on the left and right of the +/- sign, respectively.
head: If not missing, this will be used as a column heading for the two columns.
xhead, yhead: If not missing, these will be used as individual column headings.
digits, ...: Parameters to pass to the format function.
character.only: If TRUE, the head, xhead and yhead arguments will be interpreted as expressions evaluating to character values.

Value

An expression which will produce the requested output in LaTeX.

Examples

stderr <- function(x) sd(x)/sqrt(length(x))
toLatex( tabular( (Species+1) ~ Sepal.Length*
          PlusMinus(mean, stderr, digits=1), data=iris ) )
#> \begin{tabular}{lcc}
#> \hline
#> Species  & \multicolumn{2}{c}{Sepal.Length} \\ 
#> \hline
#> setosa  & \multicolumn{1}{r@{}}{$5.01$} & \multicolumn{1}{@{ $\pm$ }l}{$0.05$} \\
#> versicolor  & \multicolumn{1}{r@{}}{$5.94$} & \multicolumn{1}{@{ $\pm$ }l}{$0.07$} \\
#> virginica  & \multicolumn{1}{r@{}}{$6.59$} & \multicolumn{1}{@{ $\pm$ }l}{$0.09$} \\
#> All  & \multicolumn{1}{r@{}}{$5.84$} & \multicolumn{1}{@{ $\pm$ }l}{$0.07$} \\
#> \hline 
#> \end{tabular}