1. A system for performing an analysis of pressure-signals derivable from pressure measurements on or in a body of a human being or animal, said system including: a communication interface for receiving a set of digital pressure sample values, a memory for storing these values, and a processor capable of performing the analysis, said processor having means to identify features related to single pressure waves in said pressure signals based on input of said digital data into the processor, said processor further having determination means which based on said features is configured to: a) determine a minimum pressure value related to diastolic minimum value and a maximum pressure value related to systolic maximum value, b) determine at least one parameter of the single wave parameters elected from the group of: pressure amplitude=ΔP=[(maximum pressure value)−(minimum pressure value)], latency (ΔT), rise time or rise time coefficient=ΔP/ΔT, and wavelength of the single wave, c) determine number of said single pressure waves occurring during a given time sequence, including determination of the number of single pressure waves with pre-selected values of one or more of said single pressure wave parameters during said given time sequence, and d) determine number of single pressure waves with pre-selected combinations of two or more of said single pressure wave parameters during said given time sequence, and a display for visual presentation of the result of analysis performed by the processor.