Linked Life Data

11708361

Source:http://linkedlifedata.com/resource/pubmed/id/11708361

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2001-11-14
pubmed:abstractText
Periodogram analysis of unequally spaced time-series, as part of many biological rhythm investigations, is complicated. The mathematical framework is scattered over the literature, and the interpretation of results is often debatable. In this paper, we show that the Lomb-Scargle method is the appropriate tool for periodogram analysis of unequally spaced data. A unique procedure of multiple period searching is derived, facilitating the assessment of the various rhythms that may be present in a time-series. All relevant mathematical and statistical aspects are considered in detail, and much attention is given to the correct interpretation of results. The use of the procedure is illustrated by examples, and problems that may be encountered are discussed. It is argued that, when following the procedure of multiple period searching, we can even benefit from the unequal spacing of a time-series in biological rhythm research.
pubmed:keyword
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
S
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0929-1016
pubmed:author
pubmed:issnType
Print
pubmed:volume
30
pubmed:owner
NASA
pubmed:authorsComplete
Y
pubmed:pagination
149-77
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1999
pubmed:articleTitle
A procedure of multiple period searching in unequally spaced time-series with the Lomb-Scargle method.
pubmed:affiliation
Unit for Experimental Psychiatry, Univ. of Pennsylvania School of Medicine, Philadelphia, USA. VDongen@Mail.Med.UPenn.edu
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, Non-P.H.S., Research Support, Non-U.S. Gov't