Koen, Chris2013-11-032013-11-032006Koen, C. (2006). The Nyquist frequency for irregularly spaced time-series: a calculation formula. Monthly Notices of the Royal Astronomical Society, 371(3): 1390–13940035-8711http://hdl.handle.net/10566/793Eyer & Bartholdi showed that the Nyquist frequency of irregularly sampled time-series can be very high. In this paper, a calculation formula for the Nyquist frequency is presented. In practice there is an upper limit of 0.5/ on this frequency, where is the best accuracy with which time is recorded.en© 2006 copyright Oxford University Press. This file may be freely used for educational purposes, as long as it is not altered in any way. Acknowledgement of the authors and the source is required.Methods: statisticalArticle