Table
One-Dimensional Table of Frequences and/or Percentages
Table is a generic function that
produces a table of counts or weighted counts
and/or the corresponding percentages of an atomic vector,
factor or "item.vector" object.
This function is intended for use with
Aggregate or genTable.
The "item.vector" method is the workhorse
of codebook.
- Keywords
- univar
Usage
# S4 method for atomic
Table(x,weights=NULL,counts=TRUE,percentage=FALSE,…)
# S4 method for factor
Table(x,weights=NULL,counts=TRUE,percentage=FALSE,…)
# S4 method for item.vector
Table(x,weights=NULL,counts=TRUE,percentage=(style=="codebook"),
style=c("table","codebook","nolabels"),
include.missings=(style=="codebook"),
missing.marker=if(style=="codebook") "M" else "*",…)Arguments
- x
an atomic vector, factor or
"item.vector"object- counts
logical value, should the table contain counts?
- percentage
logical value, should the table contain percentages? Either the
countsor thepercentagearguments or both should beTRUE.- style
character string, the style of the names or rownames of the table.
- weights
a numeric vector of weights of the same length as
x.- include.missings
a logical value; should missing values included into the table?
- missing.marker
a character string, used to mark missing values in the table (row)names.
- …
other, currently ignored arguments.
Value
The atomic vector and factor methods return either a vector
of counts or vector of percentages or a matrix of counts and percentages.
The same applies to the "item.vector" vector method unless
include.missing=TRUE and percentage=TRUE,
in which case total percentages and percentages of valid values
are given.
Examples
# NOT RUN {
with(as.data.frame(UCBAdmissions),Table(Admit,Freq))
Aggregate(Table(Admit,Freq)~.,data=UCBAdmissions)
A <- sample(c(1:5,9),size=100,replace=TRUE)
labels(A) <- c(a=1,b=2,c=3,d=4,e=5,dk=9)
missing.values(A) <- 9
Table(A,percentage=TRUE)
# }