OEFPIL

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00177016%3A_____%2F21%3AN0000018" target="_blank" >RIV/00177016:_____/21:N0000018 - isvavai.cz</a>

Result on the web

<a href="https://gitlab.com/cmi6014/oefpil/" target="_blank" >https://gitlab.com/cmi6014/oefpil/</a>

DOI - Digital Object Identifier

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Result language

angličtina

Original language name

OEFPIL

Original language description

This software has been developed within TACR project TJ02000203 "Advanced mathematical and statistical methods in evaluating instrumented indentation measurements" (result TJ02000203-V4). It provides an implementation of the nonlinear data regression method OEFPIL (Optimum Estimate of Function Parameters by Iterated Linearization) in a form of a software library written in C programming language allowing integration in other software. The library aims for efficient computation, which is supported by using proven BLAS and LAPACK interfaces for matrix operations. The interface of the main function oefpil() is modeled after other established function fitting packages such as MINPACK or ODRPACK. The function provides progress reporting with optional output direction and level of verbosity. Inclusion of the library in third-party software is facilitated by simple copying the header and source file, or using CMake build system. It has been verified that this implementation yields identical results as the reference R package. A collection of examples is also included. The library is free software distributed under MIT License.

Czech name

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Czech description

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Type

R - Software

CEP classification

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OECD FORD branch

10201 - Computer sciences, information science, bioinformathics (hardware development to be 2.2, social aspect to be 5.8)

Project

<a href="/en/project/TJ02000203" target="_blank" >TJ02000203: Advanced mathematical and statistical methods in evaluating instrumented indentation measurements</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2021

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Internal product ID

OEFPIL-C

Technical parameters

Hlavní součástí softwarové knihovny je funkce oefpil() provádějící výpočet odhadu parametrů zadané nelineární funkce jedné reálné proměnné metodou iterované linearizace funkce pomocí Taylorova polynomu. Mimo odhad parametrů je výstupem funkce také jeho kovarianční matice.

Economical parameters

Software je dostupný zdarma.

Owner IČO

00177016

Owner name

Český metrologický institut