The invention relates to the analysis of ECG data by exploiting computerized three-dimensional spatial presentation of the measured data using the vector concept. Such polymers encompass norbornene-type repeating units containing maleimide groups and maleic anhydride-type repeating units where at least some of such maleic anhydride-type repeating units have been ring-opened. The first pattern and the second pattern are alternately arranged in a dense region. Additionally, the system consumes relatively few computational resources and adapts over time to provide consistently accurate classification.