reporttools (version 1.0.2)

tableNominal: Display descriptive statistics for nominal variables

Description

Many data analyses start with a display of descriptive statistics of important variables. This function takes a list of nominal variables and a possible grouping variable (such as e.g. treatment) and provides a LaTeX table of descriptive statistics separately per group and jointly for all observations, per variable.

Usage

tableNominal(vars, nams, group, subset = NA, miss.cat = NA, 
    print.pval = c("none", "fisher", "chi2")[1], vertical = TRUE, 
    cap = "", lab = "")

Arguments

vars

A list of nominal variables.

nams

A vector of strings, containing the names corresponding to the variables in vars. These are the names that appear in the LaTeX table.

group

Grouping variable, may be omitted.

subset

Only consider a subset of observations.

miss.cat

Vector specifying the factors in vars that should have their NAs transformed to a separate category.

print.pval

Give $p$-value of Fisher's exact or $\chi^2$ test for a difference of distributions between groups, if there is more than one group.

vertical

If TRUE, add vertical lines to the table, separating labels and groups, if applicable.

cap

The caption of the resulting LaTeX table.

lab

The label of the resulting LaTeX table.

Value

• Outputs the LaTeX table.

References

Rufibach, K. (2009) reporttools: R-Functions to Generate LaTeX Tables of Descriptive Statistics. Journal of Statistical Software, to appear.

Examples

set.seed(1977)
vars <- list(c(round(runif(90, 0, 3)), NA), round(runif(100, 0, 2)))
nams <- c("Var1", "Var2")
group <- sample(c(rep("A", 50), rep("B", 50)))
subset <- c(1:70, 91:100)
tableNominal(vars, nams, group, subset, cap = "Table of nominal variables.", 
     lab = "tab: nominal")