autocorr: Autocorrelation for single-case data

In scan: Single-Case Data Analyses for Single and Multiple Baseline Designs

Autocorrelation for single-case data

Description

The autocorr function calculates autocorrelations within each phase and across all phases.

Usage

## S3 method for class 'sc_ac'
print(x, digits = "auto", ...)

## S3 method for class 'sc_ac'
export(object, caption = NA, footnote = NA, filename = NA, round = 3, ...)

autocorr(data, dvar, pvar, mvar, lag_max = 3, lag.max, ...)

Arguments

x	An object returned by autocorr()
digits	The minimum number of significant digits to be use. If set to "auto" (default), values are predefined.
...	Further arguments passed to the acf() function
object	An scdf or an object exported from a scan function.
caption	Character string with table caption. If left NA (default) a caption will be created based on the exported object.
footnote	Character string with table footnote. If left NA (default) a footnote will be created based on the exported object.
filename	String containing the file name. If a filename is given the output will be written to that file.
round	Integer passed to the digits argument used to round values.
data	A single-case data frame. See scdf() to learn about this format.
dvar	Character string with the name of the dependent variable. Defaults to the attributes in the scdf file.
pvar	Character string with the name of the phase variable. Defaults to the attributes in the scdf file.
mvar	Character string with the name of the measurement time variable. Defaults to the attributes in the scdf file.
lag_max, lag.max	The lag up to which autocorrelations will be computed.

Value

A data frame containing separate autocorrelations for each phase and for all phases (for each single-case). If lag_max exceeds the length of a phase minus one, NA is returned for this cell.

Functions

• print(sc_ac): Print method

• export(sc_ac): Export results to html

Author(s)

Juergen Wilbert

See Also

acf()

Other regression functions: bplm(), hplm(), mplm(), plm(), print.sc_bctau(), trend()

Examples

## Compute autocorrelations for a list of four single-cases up to lag 2.
autocorr(Huber2014, lag_max = 2)

scan documentation built on Sept. 11, 2025, 5:12 p.m.