Publications by Csaba
skuskagabi
Introduction toto je introduction Ako sa otvoria kniznice? {r message=TRUE,warning=TRUE} library(lmtest) dir() This is an R Markdown Notebook. When you execute code within the notebook, the results appear beneath the code. Try executing this chunk by clicking the Run button within the chunk or by placing your cursor inside it and pressing Ctrl+Shif...
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Musical voting results
If You are planning to invite some classmates to a concert, the following small can be very helpful. It almost guarantees Your partner will not be boring. Your votings Cluster Analysis (Hierarchical Clustering - Dendogram) Which group do I belong to? LS0tCnRpdGxlOiAiV2hvbSB0byBpbnZpdGUgdG8gdGhlIGNvbmNlcnQ/IgpvdXRwdXQ6IGh0bWxfbm90ZWJvb2sKLS0tCgp...
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Assigment - UJS
Libraries At first, we wanto to install some needed libraries: library(car) library(lmtest) Working with dataset We got the data from …. the variables are… adot <- read.csv2("holt-Laury-experiment.csv",sep=",",dec = ".") adot summary(adot) choice bro_sis hardwork money gender Min. : 3.000 Min. ...
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LinearRegression Basics
Opening of the libraries We use the following libraries library(car) library(lmtest) Dataset Import rm(list=ls()) adot <- read.csv2("Life_Expectancy_Data.csv",header=TRUE,sep=",",dec=".") head(adot) NA We want the data just from the year 2011 (Data Selection) attach(adot) adot <- adot[Year==2011,] adot We want to choose just some of the columns ...
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Weak form of Information Efficiency (AT&T)
Installation of the Libraries Libraries If making the financial analysis of the stock exchange data, the following packages are needed: quantmod PerformanceAnalytics tidyquant #install.packages("PerformanceAnalytics", repos = "http://cran.us.r-project.org") #install.packages("dplyr", repos = "http://cran.us.r-project.org") #install.packages("tid...
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Utility theory in Finance - Lecture
Expected Utility Theory in Finance Vladimír Gazda Petersburg’s Paradox Bernoulli performed the following experiment while his petersburg’s stay: The participants iterativelly tossed the coin until getting head. If the head fell in the k-th attempt, the participant was paid by \(2^k\) Rubbles. Mathematical formulation Expected payoff of the...
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Fama - Efficient Market Theory
Efficient Market Theory Vladimír Gazda Efficient Market Hypothesis (EMH) Eugene Fama in in the paper “Efficient Capital Markets: A Review of Theory and Empirical Work,” (1970) synthesized earlier works and presented a comprehensive framework that outlined the concept of market efficiency. Fama’s contribution to understanding how securiti...
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Document
Introduction The very basic model to determine the optimal size of the delivery lot, is a model providing the so called Harris - Wilson formula. Input parameters \(\lambda\) - annual consumption of the goods in physical units; \(c_N\) - unit price of the good; \(c_S\) - the annual storage costs of one piece of good (\(c_s = c_N r\) - \(r\) is inte...
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Document
2023-02-27 Main source - Investopedia.com Investopedia.com https://www.investopedia.com/ (use it as much as possible - but reference it!!!!) Balance sheet 1st part (Current items) Assets Liabilities + Owners Equity Current Assets Current liabilities < 1 year Cash and Cash equivalents Debts Marketable securities Payables Receivables Prepayment...
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