pawacc (version 1.1)

plot.gt1m: Plot accelerometer file

Description

This function plots data from an Actigraph GT1M accelerometer file.

Usage

## S3 method for class 'gt1m':
plot(x, y = NULL, xlab, ylab, main,
keep.error = TRUE, which = "counts", select = 1,...)

Arguments

x

an object of class gt1m. It can be either accfile or acclist.

y

ignored.

xlab

x-axis label. If missing, 'Timestamp'.

ylab

y-axis label. If missing, 'counts' or 'steps'.

main

main title. If missing, 'fileid' from x$info.

keep.error

logical flag. If FALSE (default) data errors as identified by errorCts will be replaced by NAs.

which

either 'counts' or 'steps'.

select

numeric. If class(x) is acclist, this argument specifies the corresponding position of the accelerometer file in the list (first file by default).

...

Arguments to be passed to methods, such as graphical parameters (see par).

References

Actigraph (Pensacola, Florida). Geraci M, Rich C, Sera F, Cortina-Borja M, Griffiths LJ, and Dezateux C (2012). Technical report on accelerometry data processing in the Millennium Cohort Study. London, UK: University College London. Available at http://discovery.ucl.ac.uk/1361699

See Also

plot, par, gt1m.accfile, gt1m.acclist

Examples

data(gt1m_sample)

plot(gt1m_sample, which = "counts")
plot(gt1m_sample, which = "steps")