markpa.acclist(object, value, rescale.epoch = 60, labels = NULL,
extreme = NULL, keep.error = FALSE)
markpa.accfile(object, value, rescale.epoch = 60, labels = NULL,
extreme = NULL, keep.error = FALSE)
acclist
or accfile
.value
(default is 60). See details.value
includes a threshold for defining the category of extreme values, this argument identifies such category among the physical activity modes defined by value
. See details.FALSE
(default) data errors as identified by errorCts
will be replaced by NAs.object
is of class acclist
, a list of factors of the same length as the number of accelerometer files in object
. If object
is of class accfile
, a single factor will be given. The number of levels is equal to length(value) + 1
.value
. If the epoch used for value
is different from the accelerometer epoch, a rescaling is applied. E.g., if epoch is 15 seconds and breakpoints are expressed as counts per 60 seconds, value
is divided by 60/15 = 4. There can be n physical activity modes at maximum, where n is the length of value
.
The argument extreme
is NULL
by default. Use either `last' to select the last category or the category number 1 to n.
Currently, this function is implemented for class gt1m
only.readAccDir