Useful Concepts

Periodic data Data sampled at regular intervals, such as that which is logged at 50Hz.
Aperiodic data Data sampled at irregular intervals, such as that which is calculated at the end of each stroke, or at the end of an interval.
Stroke A stroke is defined by the logger on the basis of the measured forces. The boundary between one stroke and the next is located shortly after the release of pressure at the end of a stroke.
Selected region The selected region is a time interval within the dataset which provides the data for:
  • statistical and arc length averages
  • average XY curves