activpalProcessing (version 1.0.2)

prolonged.sed.bouts.num: Estimate The Number of Prolonged Sedentary Bouts

Description

This function calculates the number of sitting/lying bouts that last at least 'n' minutes in duration. User specifies n.

Usage

prolonged.sed.bouts.num(posture, epoch = 1, n)

Arguments

posture

posture is vector indicating sitting (0), standing (1) and stepping (2).

epoch

numeric value indicating what epoch (in seconds) the data are in (e.g. 60 = 1 minute epochs). The default value is 1 second

n

n is a numeric value indicating the duration (in minutes) of prolonged sedentary bouts of interest

Value

A numeric value indicating the number of sedentary bouts longer than 'n' minutes in duration

See Also

prolonged.sed.bouts.min

Examples

data(second.by.second.data)
posture <- second.by.second.data$ap.posture

# estimate number of sedentary bouts lasting at least 60 minutes 
prolonged.sed.bouts.num(posture,epoch=1,n=60)