REGRESSION MODELS BY GRETL AND R STATISTICAL PACKAGES FOR DATA ANALYSIS IN MARINE GEOLOGY

Polina LEMENKOVA

Makale detayları

REGRESSION MODELS BY GRETL AND R STATISTICAL PACKAGES FOR DATA ANALYSIS IN MARINE GEOLOGY

Yazarlar:

Polina LEMENKOVA

Yayıncı:

Muhammed Kamil ÖDEN

Ana Başlıklar:

Kanalizasyon ve beledi mühendislik

Dergi:

International Journal of Environmental Trends (IJENT) 2019 Vol.3 Issue 1, pp.39-59

Belge Tipi:

Makale

Yayın Tarihi:

6/2019

Belge Dili:

İngilizce

Document ID (Org No.):

2000637054

Sıklık:

İki Yıllık

pISSN:

2602-4160

Özet:

 




	
	
	
	Gretl
and R statistical libraries enables to perform data analysis using
various algorithms, modules and functions. In this study, the
geospatial analysis of example case study of Mariana Trench, a
deep-sea hadal trench located in west Pacific Ocean, was performed
using multi-functional combined approach of both Gretl and R
libraries. The study aim was to model and visualize trends in
variations of the trench’s properties: bathymetry (depths),
geomorphology (steepness gradient),  geology, volcanism (igneous
rocks). The workflow included following statistical methods computed
and visualized in Gretl and R libraries: 1) descriptive statistics;
2) box plots, normality analysis by
quantile-quantile (QQ)
plots; 3) local weighted polynomial regression model
(loess),
4) linear regression by several methods:
weighted
least squares
(WLS) regression,
ordinary least squares
(OLS) regression,
maximal likelihood linear regression and heteroskedasticity
regression model; 5) confidence ellipses and marginal intervals for
data distribution; 6) robust estimation by Nadaraya–Watson kernel
regression fit; 7) correlation analysis and matrix. The results
include following ones. First, the geology of the trench has a
correlation with a slope angle gradient and igneous rocks (volcanism
effect). Second, the sedimentation is distributed unequally by
tectonic plates. Third, there is a correlation between the slope
gradient and aspect degree. Forth, geospatial analysis of the
bathymetry shows that the deepest part of the trench is located in
the south-west. 





.

Makale detayları

REGRESSION MODELS BY GRETL AND R STATISTICAL PACKAGES FOR DATA ANALYSIS IN MARINE GEOLOGY

Yazarlar: Polina LEMENKOVA

Yayıncı: Muhammed Kamil ÖDEN

Ana Başlıklar: Kanalizasyon ve beledi mühendislik

Dergi: International Journal of Environmental Trends (IJENT) 2019 Vol.3 Issue 1, pp.39-59

Belge Tipi: Makale

Yayın Tarihi: 6/2019

Belge Dili: İngilizce

Document ID (Org No.): 2000637054

Sıklık: İki Yıllık

pISSN: 2602-4160

Sayı

Yazarlar:

Polina LEMENKOVA

Yayıncı:

Muhammed Kamil ÖDEN

Ana Başlıklar:

Kanalizasyon ve beledi mühendislik

Dergi:

International Journal of Environmental Trends (IJENT) 2019 Vol.3 Issue 1, pp.39-59

Belge Tipi:

Makale

Yayın Tarihi:

6/2019

Belge Dili:

İngilizce

Document ID (Org No.):

2000637054

Sıklık:

İki Yıllık

pISSN:

2602-4160