Words similar to correlogram
Example sentences for: correlogram
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Note that the correlogram also gives an estimate of the period (see below).
Maximum Entropy Spectral Analysis (MESA) was employed to estimate the period of a rhythm, i.e., for a given time-course previously determined to be significantly periodic by correlogram.
This subjective criterion follows from the fact that the confidence interval of the correlogram is not based on variability in the signal but solely on the number of data points taken in the experiment (see [ 37 ] ). Following inspection of the signal and the correlogram, several methods are used to estimate period.
Figure 2provides an example of why we use a system of qualitative criteria to assess rhythmicity; while the correlogram of a pair of forelegs shown on the top row indicates a statistically significant rhythm, the foreleg pair shown on the bottom row is tabulated as rhythmic even though the correlogram does not achieve statistical significance.
This convention has been applied where the size of the data set may be small (at most 180 data points in luciferase studies, for instance) making the confidence limit unrealistically high [ 13 ] . Thus, given a regular rise and fall in the correlogram, we would consistently consider those data to be rhythmic [see [ 37 38 ] for more detail, also see [ 10 39 ] ]. While this assessment of rhythmicity is subjective (in contrast to the objective cutoff imposed by the 95% confidence interval), we guard against investigator bias by evaluating each record "blind" to genotype or treatment.
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