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Fitting curves to cyclic data

Open-File Report 55-91

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Abstract

A common problem in hydrology is to fit a smooth curve to cyclic or periodic data, either to define the most probable values of the data or to test some principle that one wishes to demonstrate.  This study treats of those problems where the length or period of the cycle is know beforehand - as a day, year, or meander length for example.  Curve-fitting can be made by free-hand drawing, and where the data are closely aligned this method offers the simplest and most direct course.  However, there are many problems where the best fit is far from obvious, and analytical methods may be necessary.

Additional publication details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Fitting curves to cyclic data
Series title:
Open-File Report
Series number:
55-91
Year Published:
1955
Language:
English
Publisher:
U.S. Geological Survey
Description:
11 p
Online Only (Y/N):
N
Additional Online Files (Y/N):
N