Table 1

Computational complexity. The approximate time in seconds needed for the different spectrum estimation methods to evaluate one spectral estimate. Random signals were used in the evaluation. FFT is the acronym for fast fourier transform, LTS for least trimmed squares and MCD for minimum ovariance determinant. The method Robustperiodic f fcorresponds to the method in [5]

FFT

Robusst periodic

Lomb-Scargle

Tukey

LTS

MCD


Signal length

20

0.00005

0.003

0.004

0.01

3.1

16.0

30

0.00004

0.004

0.004

0.15

5.0

22.3


Ahdesmäki et al. BMC Bioinformatics 2007 8:233   doi:10.1186/1471-2105-8-233

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