The GeneCycle Package - NexTag Supports Open Source Initiatives

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8 periodogramExamples# load GeneCycle librarylibrary("GeneCycle")# load data setdata(caulobacter)# any constant genes?sum(is.constant(caulobacter))# but here:series.1
obust.g.test 9freqA vector with frequencies f ranging from 0 to fc (if the sampling rate frequency(x))equals 1 then fc = 0.5). Angular frequencies may be obtained by multiplicationwith 2*pi (i.e. omega = 2*pi*f).Author(s)Konstantinos Fokianos (http://www.ucy.ac.cy/~fokianos/) and Korbinian Strimmer(http://strimmerlab.org).See Alsospectrum, avgp, fisher.g.test.Examples# load GeneCycle librarylibrary("GeneCycle")# load data setdata(caulobacter)# how many genes and how many samples?dim(caulobacter)# periodograms of the first 10 genesperiodogram(caulobacter[,1:10])robust.g.testRobust g Test for Multiple (Genetic) Time SeriesDescriptionrobust.g.test calculates the p-value(s) for a robust nonparametric version of Fisher’s g-test(1929). Details of this approach are described in Ahdesmaki et al. (2005), along with an extensivediscussion of its application to gene expression data.g.statistic computes the test statistic given a discrete time series spectrum.robust.spectrum computes a robust rank-based estimate of the periodogram/correlogram - seeAhdesmaki et al. (2005) for details.Usagerobust.g.test(y, index, perm = FALSE, x, noOfPermutations = 5000)g.statistic(y, index)robust.spectrum(x)
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The GeneCycle Package - NexTag Supports Open Source Initiatives

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