Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
The computation of local fluctuations, RMS{1}, around linear (A), quadratic (B), and cubic trends (C) by Matlab code 3 (m = 1, m = 2, and m = 3, respectively). The red dashed line is the fitted trend, fit{v}, within eight segments of sample size 1000. The distance between the red dashed trend and the solid red lines represents ±1 RMS{1}. The local fluctuation, RMS{1}, around trends is the basic “building block” of the detrended fluctuation analysis.
