NAG fl90 Library

Chapter 29: Time Series Analysis - Examples

Module 29.3: nag_tsa_spectral - Time Series Spectral Analysis
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Calculation of the smoothed sample spectrum of a univariate time series
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Calculation of the smoothed sample cross spectrum of a bivariate time series
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Calculation of the squared coherency and the impulse causal response function
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Computes the univariate spectrum together with the optional 95% confidence multiplying limits, statistics and autocovariances for a univariate time series
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Computes the univariate logged spectrum together with the optional 95% confidence multiplying limits, statistics and frequency width of smoothing window for a univariate time series. No smoothing is carried out
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Computes the univariate spectrum together with the optional 95% confidence multiplying limits and statistics for a univariate time series using autocovariances data
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Computes the cross spectrum and the optional cross covariances for a bivariate time series
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Computes the cross spectrum for a bivariate time series using autocovariances data
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Computes the squared coherency together with the optional squared coherency lower and upper bounds, the cross amplitude spectrum and its bounds, the gain and the phase and their bounds for a univariate and bivariate spectra
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Computes the optional noise spectrum and its lower and upper bounds, the impulse causal and anticipatory response function and its standard error for a linear system


Chapter 29 Contents
Release 4 Table of Contents
© The Numerical Algorithms Group Ltd, Oxford, UK. 2003