Published June 1977 | Version v1
Report Open

Genfit: a general least squares curve fitting program for mini-computer

Description

Genfit is a basic data processing program, suitable for small on line computers. In essence the program solve the curve fitting problem using the non-linear least squares method. A data set consisting of a series of points in X-Y plane is fitted to a selected function whose parameters are adjusted to give the best fit in the least squares sence. Convergence may be accelerated by modifying (or interchanging) the values of the constant parameters in accordance with results of previous calculations

Availability note (English)

MF available from INIS under the Report Number.

Abstract (Portuguese)

GENFIT e um programa basico de processamento de dados apropriado para pequenos computadores atuais. Em essencia, o programa resolve o problema de ajuste de curvas, utilizando o metodo de minimos quadrados nao-linear. Um conjunto de dados, que consiste numa serie de pontos no plano X-Y, e ajustado por uma funcao selecionada, cujos parametros fornecem o melhor ajuste possivel no criterio de minimos quadrados. A convergencia pode ser acelerada modificando (ou intercambiando) os valores das constantes, de acordo com resultados de calculos previos

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Additional details

Publishing Information

Imprint Pagination
20 p.
Journal Issue
no. 57
Series
Informacao IEA.
Report number
IEA-TI--57

INIS

Country of Publication
Brazil
Country of Input or Organization
Brazil
INIS RN
9366218
Subject category
S99: GENERAL AND MISCELLANEOUS;
Descriptors DEI
COMPUTER CODES; COMPUTERS; DATA PROCESSING; ERRORS; FUNCTIONS; ITERATIVE METHODS; LEAST SQUARE FIT; PLOTTERS; PROGRAMMING
Descriptors DEC
COMPUTER-GRAPHICS DEVICES; MAXIMUM-LIKELIHOOD FIT; NUMERICAL SOLUTION