VI - Power Variability Index

A data field that computes the VI (Power Variability Index) and IF (Intensity Factor) values from your power meter data and displays it on your Garmin Edge. Tapping switches between lap and total modes for both of them. It's necessary to configure your FTP value in the settings dialog of this app for the IF to be computed correctly. The duration in seconds considered for the trend arrow computation can be configured via the settings dialog as well. It's also possible to exclude zero power values from the computation (e. g. when you are not pedaling) via the settings, but the default is to register a zero power value every second. It's possible to either reset the normalised power computation when pressing the lap button or continue using the global computation by enabling/disabling the respective setting.