A new function for analysis of datasets

Csanády Viktória

Bulletin of Forestry Science / Volume 3 / Issue 1 / Pages 137-145
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Viktória Csanády

Correspondence

Correspondence: Csanády Viktória

Postal address: H-9400 Sopron, Bajcsy-Zsilinszky u. 4.

e-mail: vcsanady[at]emk.nyme.hu

Abstract

In this paper, we suggest a model of fitting a new type of saturation curve, namely a sinus curve, which can extend the application of saturation curves and life curves for forest yield database. The greatest advantage of the model is its flexibility can be realized in fitting either with or without inflection point. The initial values can easily be given for the regression procedure implemented in computer. The output of the programme consists of five parameters. Beside the usual graphical illustration the algorithm makes possible to show the differences between, for instance, black locust-tree production sites by exact calculation.

Keywords: regression, saturation curve, life curve, sinus curve, forest yield database

References3

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3.	Statistica 9.: StatSoft: Statistica statisztikai adatelemző, analitikai szoftvercsalád.

Kehl F. és Sipos B. 2009: A telítődési, a logisztikus és az életgörbe alakú trendfüggvények becslése Excel parancsfájl segítségével. Statisztikai Szemle, 87(4): 381–411.

Rédei K.; Csiha I.; Keserű Zs.; Kamandiné Végh Á. és Rásó J. 2011: Nyírségi akácosok táji fatermési táblája. Erdészettudományi Közlemények, 1(1):115–124. full text

Statistica 9.: StatSoft: Statistica statisztikai adatelemző, analitikai szoftvercsalád.

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Cite this article as:

Csanády, V. (2013): A new function for analysis of datasets. Bulletin of Forestry Science, 3(1): 137-145. (in Hungarian)

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Volume 3, Issue 1
Pages: 137-145

First published:
28 June 2013

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