Natural time analysis (original) (raw)

Natural time analysis is a statistical method applied to analyze complex time series and critical phenomena, based on event counts as a measure of "time" rather than the clock time. Natural time concept was introduced by P. Varotsos, N. Sarlis and E. Skordas in 2001. Natural time analysis has been primarily applied to earthquake prediction / and secondarily to sudden cardiac death / heart failure and financial markets. Natural time characteristics are considered to be unique.