Publications by Marian Nehrebecki
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library(bookdown) 1 Introduction The occurrence of poverty has significant social and economic effects, and the way it is defined and measured poverty affects strategies to combat it. Therefore, this issue is widely discussed both in the literature and in the political arena. It is now believed that it is not merely an inability to meet basic ne...
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library(bookdown) 1 Introduction In the era of globalization, the topic of division between different regions is still being discussed and countries in terms of many aspects. Globalization is the process of “widening and deepening the interdependence between countries and regions as a result of increasing international flows and the activities...
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library(bookdown) 1 Introduction Market Basket Analysis is the process of finding the most common in-store shopping patterns. It arises as a result of the analysis of transaction databases to determine the combination of items that are related to each other. Products are detected whose presence in the transaction increases the chances of the app...
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Drug Review - cluster analysis
1 Introduction Currently, drug users have access to various kinds of information. This can be either a numeric label or a text comment. The main source of useful and comprehensive information, however, is text comments. You can find out the effectiveness of the drug, the side effects of the drug and other precautions. Having wide access to online...
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Classification on the German scoring data
Introduction The aim of the project is to perform a classification on a data set and to compare the quality of the models and methods used. The structure of the project is as follows. The first part presents description of data and problem analyzed (initial descriptive analysis of the data, variable transformations, variable selection methods). T...
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Effect of pandemic COVID-19 on Poland stock companies
1 Introduction The purpose of this statistical Report is to present financial and behavioral situation of Polish stock companies. The report consists of 2 parts: • first part presents financial situation of the companies during 2020 with comparison to 2019; • second part covers behavioral situation of the companies during 2020. Additionall...
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