Time series analysis in a frequency subband

Time series analysis in a frequency subband

Standard time series analysis estimates the power spectral density over the full frequency range, until half the sampling frequency. In several input–output identification problems, frequency selective model estimation is desirable. Processing of a time series in a subband may also be useful if observations of a stochastic process are analyzed for the presence or multiplicity of spectral peaks....

a time-series analysis of the demand for life insurance in iran

با توجه به تجزیه و تحلیل داده ها ما دریافتیم که سطح درامد و تعداد نمایندگیها باتقاضای بیمه عمر رابطه مستقیم دارند و نرخ بهره و بار تکفل با تقاضای بیمه عمر رابطه عکس دارند

Frequency-based Analysis of Financial Time Series

From phase space to frequency domain: a time-frequency analysis for chaotic time series.

Time-frequency analysis is performed for chaotic flow with a power spectrum estimator based on the phase-space neighborhood. The relation between the reference phase point and its nearest neighbors is demonstrated. The nearest neighbors, representing the state recurrences in the phase space reconstructed by time delay embedding, actually cover data segments with similar wave forms and thus poss...

Determinants of healthcare expenditures in Iran: evidence from a time series analysis

Background: A dramatic increase in healthcare expenditures is a major health policy concern worldwide. Understanding factors that underlie the growth in healthcare expenditures is essential to assist decision-makers in finding best policies to manage healthcare costs. We aimed to examine the determinants of healthcare spending in Iran over the periods of 1978-2011. Methods: A time series ana...