search for: psdplot

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2012 Aug 05
1
trouble with looping for effect of sampling interval increase
...lUpperQ <- NULL IntervalMean <- NULL IntervalMedian <- NULL #Here is the loop for betas from sampling interval increase c <- WHOLESIZE[2]-1 for (i in 1:c) { x <- length(unique(index[,i])) for (j in 1:x) { data <- WHOLE [WHOLE[,x]==j,1] #get power spectral density PSDPLOT <- spectrum (data, detrend = TRUE, plot = FALSE) frequency <- PSDPLOT$freq PSD <- PSDPLOT$spec #log transform the power spectral density Logfrequency <- log(frequency) LogPSD<- log(PSD) #fit my line to the data Line <- lm (LogPSD ~ Logfrequency) #store the slope of the l...