sleep2: Sleep State and Movement Data - Group 2

Description

Sleep-state and number of movements of infants taken from a study on the effects of prenatal exposure to alcohol. This is Group 2 where the mothers drank alcohol in moderation during pregnancy.

Arguments

Format

List of 12 (by subjects) :'data.frame': 120 obs. of 3 variables: .. min : int [1:120] minute (1 to 120) .. state: int [1:120] sleep state 1 to 6 with NA missing (see details) .. mvmnt: int [1:120] number of movements

Details

Per minute sleep state, for approximately 120 minutes, is categorized into one of six possible states, non-REM: NR1 [1] to NR4 [4], and REM [5], or AWAKE [6]. NA means no state is recorded for that minute (if there, it occurs at end of the session). Group 2 (this group) is from mothers who drank alcohol in moderation during pregnancy. In addition, the number of movements per minute are listed.

References

You can find demonstrations of astsa capabilities at FUN WITH ASTSA.

The most recent version of the package can be found at https://github.com/nickpoison/astsa/.

In addition, the News and ChangeLog files are at https://github.com/nickpoison/astsa/blob/master/NEWS.md.

The webpages for the texts are https://www.stat.pitt.edu/stoffer/tsa4/ and https://www.stat.pitt.edu/stoffer/tsda/.

Examples

Run this code

if (FALSE) {
par(xpd = NA, oma = c(0,0,0,8) )
tsplot(sleep2[[1]][2:3], type='s', col=2:3, spag=TRUE, gg=TRUE)
legend('topright', inset=c(-0.33,0), bty='n', lty=1, col=2:3, legend=c('sleep state',
        'number of \nmovements'))

x = dna2vector(sleep2[[3]]$state[1:119], alphabet=c('1','2','3','4','5'))  # never awake
specenv(x, spans=3)
abline(v=1/60, lty=2, col=8)
}