Package 'Hmisc' - R

24 biVar
xlab
vnames
x-axis label. Default constructed from what.
set to "labels" to use variable labels in place of names for plotting. If a
variable does not have a label the name is always used.
Details
Uses midranks in case of ties, as described by Hollander and Wolfe. P-values for Spearman,
Wilcoxon, or Kruskal-Wallis tests are approximated by using the t or F distributions.
Value
spearman2.default (the function that is called for a single x, i.e., when there is no formula)
returns a vector of statistics for the variable. biVar, spearman2.formula, and chiSquare
return a matrix with rows corresponding to predictors.
Author(s)
Frank Harrell
Department of Biostatistics
Vanderbilt University
〈f.harrell@vanderbilt.edu〉
References
Hollander M. and Wolfe D.A. (1973). Nonparametric Statistical Methods. New York: Wiley.
Press WH, Flannery BP, Teukolsky SA, Vetterling, WT (1988): Numerical Recipes in C. Cambridge:
Cambridge University Press.
See Also
combine.levels, varclus, dotchart2, impute, chisq.test, cut2.
Examples
x