Accession Number:

ADA081688

Title:

A Critical Comparison of Some Methods for Interpolation of Scattered Data

Descriptive Note:

Final rept. Jan-Mar 1979

Corporate Author:

NAVAL POSTGRADUATE SCHOOL MONTEREY CA

Personal Author(s):

Report Date:

1979-12-01

Pagination or Media Count:

379.0

Abstract:

This report is concerned with methods for solving the scattered data interpolation problem Given points X sub K, Y sub k, F sub k, k 1, ..., N, construct a smooth function, Fx,y, so that FX sub k, Y sub k F sub k, K 1, ...,N. A comparison of 29 methods for solution of this problem has been made. Each of the methods is discussed and the results of extensive testing for their properties and appropriate values of their parameters is given. Both local and global methods are considered. Comparisons of timing, storage, accuracy, visual pleasantness of the surface, and ease of implementation are made. A large number over 200 of pages of perspective plots of surfaces are given. Suggestions for improvement of some methods are made, and methods which have poor approximation properties are identified.

Subject Categories:

  • Statistics and Probability

Distribution Statement:

APPROVED FOR PUBLIC RELEASE