generic_features: Calculate generic features for model application

In accelEE: Predict Energy Expenditure from Accelerometry Data

Calculate generic features for model application

Description

Calculate generic features for model application

Usage

generic_features(
  d,
  time_var = "Timestamp",
  x_var = "Accelerometer_X",
  y_var = "Accelerometer_Y",
  z_var = "Accelerometer_Z",
  win_width_sec = 1,
  verbose = FALSE,
  ...
)

Arguments

d	data frame of data to use for generating predictions
time_var	character. Name of the column containing POSIX-formatted timestamps
x_var	character. Name of the X-axis variable
y_var	character. Name of the Y-axis variable
z_var	character. Name of the Z-axis variable
win_width_sec	desired window width for features
verbose	logical. Print updates to console?
...	currently unused

Value

A data frame of features in the specified epoch length

Examples

if (isTRUE(requireNamespace("read.gt3x"))) {

  f <- system.file("extdata/TAS1H30182785_2019-09-17.gt3x", package = "read.gt3x")
  d <- stats::setNames(
    read.gt3x::read.gt3x(f, asDataFrame = TRUE, imputeZeroes = TRUE),
    c("Timestamp", "Accelerometer_X", "Accelerometer_Y", "Accelerometer_Z")
  )[1:30000, ]

  utils::head(generic_features(d))

}

accelEE documentation built on Aug. 29, 2026, 1:07 a.m.