Fit a power-law to the spectrum

Usage

SlopeFit(
  spec,
  freq.start = NULL,
  freq.end = NULL,
  bDebug = TRUE,
  breaks = NULL,
  indexRemove = NULL,
  df.log = 0.05,
  i.fStart = 4
)

spec: power spectrum as list with $freq and $spec
freq.start: vector containing the start frequencies of the fitting interval(s)
freq.end: vector containing the end frequencies of the fitting interval(s)
bDebug: (TRUE) plot diagnostics
breaks: vector of breakpoints to which the spectra is binned (optional)
indexRemove: bins that are removed (e.g. containing the annual and semiannual cycle)
df.log: resolution of the bins (if breaks are not provided)
i.fStart: index of first (lowest) frequency to be used

list(slope=slope,slopesd=slopesd,spec=saveSpec,freq=binFreq,intercept=intercept)

Thomas Laepple