select_steps {pressuRe} | R Documentation |
Select steps
Description
Select steps, usually from insole data, and format for analysis
Usage
select_steps(
pressure_data,
threshold = "auto",
min_frames = 10,
n_steps = 5,
skip = 2
)
Arguments
pressure_data |
List. First item should be a 3D array covering each timepoint of the measurement. z dimension represents time. |
threshold |
Numeric. Threshold force to define start and end of step. If "auto", function will set threshold at minimum force in trial + 10N |
min_frames |
Numeric. Minimum number of frames that need to be in step |
n_steps |
Numeric. Target number of steps/cycles. User will be asked to keep selected steps until this target is reached or they run out of candidate steps |
skip |
Numeric. Usually the first few steps of a trial are accelerating and not representative of steady state walking so this removes them |
Value
pressure_array. 3D array covering each timepoint of the measurement. z dimension represents time
pressure_system. String defining pressure system
sens_size. Numeric vector with the dimensions of the sensors
time. Numeric value for time between measurements
masks. List
events. List
sensor_polygons. Data frame with corners of sensors
max_matrix. Matrix
Examples
pedar_data <- system.file("extdata", "pedar_example.asc", package = "pressuRe")
pressure_data <- load_pedar(pedar_data)
pressure_data <- select_steps(pressure_data)