fsia (version 1.0)

freq: Absolute and Percentage Frequencies of the Responses to the Items.

Description

Calculates and plots the absolute or percentage frequencies of the responses to each item.

Usage

freq(obj, columns, perc = FALSE)
"plot"(x, display = TRUE, ...)

Arguments

obj

An object of class fsdata containing the data imported by function read.formscanner.

columns

A vector containing which columns to use. Columns can be specified by name or number.

perc

logical; if TRUE percentage frequencies are calculated.

x

An object of class frlist returned by function freq.

display

logical; if TRUE the frequencies are displayed on the plot.

...

further arguments passed to or from other methods.

Value

Function freq returns an abject of class frlist containing a list with components

item

the name of the item.

tab

an object of class table containing the frequencies.

key

the key of the item.

See Also

read.formscanner

Examples

data(exam1)
fr <- freq(obj = exam1, col = c("I2","I3"))
fr
plot(fr)
fr <- freq(obj = exam1, col = 2:11, perc = TRUE)
fr
par(mfrow = c(2,5))
plot(fr)
plot(fr, display = FALSE)