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Browsing by Subject "correlation and regression"

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  • thumbnail.journal.alt
    Item type:Thesis, Access status: Restricted ,
    Zależność zasobności $Cu$ w rudzie węglanowej od miąższości rudy łupkowej między Centralną Elewacją Rudnej i Północną Elewacją Rudnej (Rejon Rudnej Głównej)
    (Data obrony: 2013-09-05) Wójtowicz, Jerzy
    Wydział Geologii, Geofizyki i Ochrony Środowiska
    Earlier studies on lithological structure and accumulation index of Cu in LGOM deposits showed a relationship between thickness of shale ore and accumulation index of Cu in the carbonate ore. Statistical analysis of the thickness of shale ore and accumulation index of Cu in the carbonate ore indicates a high variability of these parameters. Geostatistical analysis showed a relatively high level of non-random component in the variability structure of both series. The correlation and regression of deposit parameters showed statistically significant but relatively poor correlation (correlation coefficient slightly exceeding the value of -0.2). Attempt to estimate the accumulation index of Cu in carbonate ore based on a set of nonlinear regression model and information about thickness of shale ore resulted in unsatisfactory results.
  • thumbnail.journal.alt
    Item type:Thesis, Access status: Restricted ,
    Zależność zasobności Cu w rudzie węglanowej od miąższości rudy łupkowej między Centralną Elewacją Rudnej i Północną Elewacją Rudnej (Rejon Rudnej Zachodniej)
    (Data obrony: 2013-09-05) Wójcik, Dawid
    Wydział Geologii, Geofizyki i Ochrony Środowiska
    In the study attempted to search the relationship between the thickness of the shale series and the accumulation index of Cu in carbonate series in the part of Rudna deposit. Analysis of variability of shale thickness and accumulation index of Cu in carbonate based on their maps made by kriging showed that, for the change in the accumulation index of Cu in carbonate ore is associated with differences in the thickness of the ore shale (the larger the thickness of the shale, the lower accumulation index of Cu in carbonate). Correlation and regression analysis between those parameters for samples with accumulation index of Cu in carbonate series more than 50 kg/m2 showed the existence of a relatively strong, statistically significant correlation with a correlation coefficient of -0.45 and and linear model of regression . Made maps of the accumulation index of Cu in carbonate series based on set of regression models and information about thickness only indicates the possibility of indicative designation of areas where accumulation index of Cu in carbonate series does not exceed 10 kg/m2.
  • thumbnail.journal.alt
    Item type:Thesis, Access status: Restricted ,
    Zależność zawartości Cu i Ag w wybranym fragmencie złoża „Rudna”
    (Data obrony: 2014-10-29) Łuc, Jakub
    Wydział Geologii, Geofizyki i Ochrony Środowiska
    This master thesis presents a statistical survey and analysis of correlation and regression between the content of Cu and Ag in the fragment of Rudna deposit. Statistics shows the extreme variability of the studied parameters in the studied area. Investigating the relationship between the parameters in several variants does not give satisfactory results despite the existence of a statistically significant relationship between copper and silver. Attention shall be paid to the moderate correlation in carbonate ore and thickness in the range of tests from 6 m to 10 m for the deposit balance. Trying to predict the occurrence of the silver content based on copper content are not reliable.