What is another word for periodogram?
Pronunciation: [pˈi͡əɹɪədˌɒɡɹam] (IPA) 
A periodogram is a tool utilized to display the spectral density of a time series. Other terms used to refer to the periodogram include power spectrum, spectral density function, and spectral periodogram. The power spectrum offers a visual representation of the frequencies that makeup time series data. This analysis tool is commonly used in signal processing, geology, and astronomy. The periodogram is vital in identifying patterns or changes in the frequency of events in a particular data set. Other similar tools that can be used in place of a periodogram include the autocorrelation function, cross-spectral analysis, and coherence function. Understanding the various synonyms for periodogram helps researchers make more informed decisions when selecting the right tool for data analysis.
