cross.multi.table: Two-way frequency table between a multiple choices question...

In questionr: Functions to Make Surveys Processing Easier

Two-way frequency table between a multiple choices question and a factor

Description

This function allows to generate a two-way frequency table from a multiple choices question and a factor. The question's answers must be stored in a series of binary variables.

Usage

cross.multi.table(
  df,
  crossvar,
  weights = NULL,
  digits = 1,
  freq = FALSE,
  tfreq = "col",
  n = FALSE,
  na.rm = TRUE,
  ...
)

Arguments

df	data frame with the binary variables
crossvar	factor to cross the multiple choices question with
weights	optional weighting vector
digits	number of digits to keep in the output
freq	display percentages
tfreq	type of percentages to compute ("row" or "col")
n	if TRUE, and freq is TRUE, display number of observations per row or column
na.rm	Remove any NA values in crossvar
...	arguments passed to multi.table

Details

See the multi.table help page for details on handling of the multiple choices question and corresponding binary variables.

If freq is set to TRUE, the resulting table gives the columns percentages based on the contingency table of crossvar in the respondants population.

Value

Object of class table.

See Also

multi.table, multi.split, table

Examples

## Sample data frame
set.seed(1337)
sex <- sample(c("Man","Woman"),100,replace=TRUE)
jazz <- sample(c(0,1),100,replace=TRUE)
rock <- sample(c(TRUE, FALSE),100,replace=TRUE)
electronic <- sample(c("Y","N"),100,replace=TRUE)
weights <- runif(100)*2
df <- data.frame(sex,jazz,rock,electronic,weights)
## Two-way frequency table on 'music' variables by sex
cross.multi.table(df[,c("jazz", "rock","electronic")], df$sex, true.codes=list("Y"))
## Column percentages based on respondants
cross.multi.table(df[,c("jazz", "rock","electronic")], df$sex, true.codes=list("Y"), freq=TRUE)
## Row percentages based on respondants
cross.multi.table(df[,c("jazz", "rock","electronic")], 
                  df$sex, true.codes=list("Y"), freq=TRUE, tfreq="row", n=TRUE)

questionr documentation built on Feb. 16, 2023, 10:14 p.m.