40 citations · 49 across the 5 of their papers we have counts for
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Reliable scaling exponent estimation of long-range correlated noise in the presence of random spikes
Radhakrishnan Nagarajan
Detrended fluctuation analysis (DFA) has been used widely to determine possible long-range correlations in data obtained from diverse settings. In a recent study [1], uncorrelated…
Effect of coarse-graining on detrended fluctuation analysis
Radhakrishnan Nagarajan
Several studies have investigated the scaling behavior in naturally occurring biological and physical processes using techniques such as detrended fluctuation analysis (DFA). Data…
Surrogate testing of linear feedback processes with non-Gaussian innovations
Radhakrishnan Nagarajan
Surrogate testing is used widely to determine the nature of the process generating the given empirical sample. In the present study, the usefulness of phase-randomized surrogates,…
Is non-Gaussianity sufficient to produce long-range volatile correlations?
Radhakrishnan Nagarajan
Scaling analysis of the magnitude series (volatile series) has been proposed recently to identify possible nonlinear/multifractal signatures in the given data [1-3]. In this letter…
Minimizing the effect of trends on detrended fluctuation analysis of long-range correlated noise
Radhakrishnan Nagarajan, Rajesh G. Kavasseri
Detrended fluctuation analysis (DFA) has been proposed as a robust technique to determine possible long-range correlations in power-law processes [1]. However, recent studies have…