Software for contour maps of moving least-squares spectra

S. Nintcheu-Fata; Germaine G Cornelissen-Guillaume; G. Katinas; F. Halberg; B. Fišer; J. Siegelová; M. Mašek; J. Dušek

Software for contour maps of moving least-squares spectra

S. Nintcheu-Fata, Germaine G Cornelissen-Guillaume, G. Katinas, F. Halberg, B. Fišer, J. Siegelová, M. Mašek, J. Dušek

Physiology

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16 Scopus citations

Abstract

This paper reports on software developed to compute least-squares spectra over a specified interval. This approach facilitates the viewing of a changing time structure in non-stationary time series, smaller than the observation span. The programme is illustrated by a case of solar activity, gauged by yearly Wolf numbers, for the 1700-1999 span that shows the presence of a very unstable component with a period of around-100 years and an about-11-year solar cycle. This method, although demostrated here on a geophysical example, has a broad scope of applications in biology and medicine.

Original language	English (US)
Pages (from-to)	279-284
Number of pages	6
Journal	Scripta Medica Facultatis Medicae Universitatis Brunensis Masarykianae
Volume	76
Issue number	5
State	Published - Dec 1 2003

Keywords

Least-squares spectra
Rhythm analysis
Software

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abstract = "This paper reports on software developed to compute least-squares spectra over a specified interval. This approach facilitates the viewing of a changing time structure in non-stationary time series, smaller than the observation span. The programme is illustrated by a case of solar activity, gauged by yearly Wolf numbers, for the 1700-1999 span that shows the presence of a very unstable component with a period of around-100 years and an about-11-year solar cycle. This method, although demostrated here on a geophysical example, has a broad scope of applications in biology and medicine.",

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AU - Nintcheu-Fata, S.

AU - Cornelissen-Guillaume, Germaine G

AU - Katinas, G.

AU - Halberg, F.

AU - Fišer, B.

AU - Siegelová, J.

AU - Mašek, M.

AU - Dušek, J.

PY - 2003/12/1

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N2 - This paper reports on software developed to compute least-squares spectra over a specified interval. This approach facilitates the viewing of a changing time structure in non-stationary time series, smaller than the observation span. The programme is illustrated by a case of solar activity, gauged by yearly Wolf numbers, for the 1700-1999 span that shows the presence of a very unstable component with a period of around-100 years and an about-11-year solar cycle. This method, although demostrated here on a geophysical example, has a broad scope of applications in biology and medicine.

AB - This paper reports on software developed to compute least-squares spectra over a specified interval. This approach facilitates the viewing of a changing time structure in non-stationary time series, smaller than the observation span. The programme is illustrated by a case of solar activity, gauged by yearly Wolf numbers, for the 1700-1999 span that shows the presence of a very unstable component with a period of around-100 years and an about-11-year solar cycle. This method, although demostrated here on a geophysical example, has a broad scope of applications in biology and medicine.

KW - Least-squares spectra

KW - Rhythm analysis

KW - Software

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Software for contour maps of moving least-squares spectra

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