frequency analysis


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frequency analysis

[′frē·kwən·sē ə‚nal·ə·səs]
(computer science)
A determination of the number of times certain parts of an algorithm are executed, indicating which parts of the algorithm consume large quantities of time and hence where efforts should be directed toward improving the algorithm.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
It covers the statistical analysis of precipitation extremes, evapotranspiration and evaporative demand, infiltration and soil water, probability distributions in groundwater hydrology, modeling streamflow variability, flood frequency analysis in the US, low flows and droughts, probabilistic models for urban stormwater management, analysis of water quality random variables, multivariate frequency distributions in hydrology, and hydrologic record events.
They discussed the tools for analysis of rare events like regional frequency analysis, site analysis, distributional modeling along with their assumption and constraints.
The real-time data comes from a variety of different sources covering such metrics as vibration, frequency analysis, gear box monitoring, temperature, power and velocity monitoring.
Peak frequency analysis has also been considered as an accurate way of predicting damage mechanism in composites.
"Cracking Codes with Python" also shows how to: Combine loops, variables, and flow control statements into real working programs; Use dictionary files to instantly detect whether decrypted messages are valid English or gibberish; Create test programs to make sure that your code encrypts and decrypts correctly; Code (and hack!) a working example of the affine cipher, which uses modular arithmetic to encrypt a message; Break ciphers with techniques such as brute-force and frequency analysis.
In this complementary work, the feasibility of implementing a nonconventional, nonstationary frequency analysis was investigated.
(i) The software package Length Frequency Distribution Analysis (LFDA) [24] was used by applying three methods [Shepherd's Length Composition Analysis (SLCA), Electronic Length Frequency Analysis (ELEFAN), and the Projection Matrix Method (PROJMAT)] to the length-frequency distributions of each survey to obtain the most objective von Bertalanffy growth parameters.
The regional frequency analysis (RFA) for 10 days low flow series was conducted on 09 sites of Indus basin by using method of linear moments (L-Moments).
We can analyze these frequency peaks using what is called a "frequency analysis method" that will take the sound wave and reveal the vast number of noise frequencies that are most dominant.
To test hypotheses H1, H2 and H3, pertaining to the pace of ethnicity and shopping trip frequency, at first, the frequency analysis was used to see the extent within the shopping trip frequency.

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