Modern Data Analysis
Learn about Big Data Analysis and Data Science
Dienstag, 30. Mai 2017
Correlation
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What is a correlaion? A correlation is a kind of relationship between two variables. It is a statistical value expressed in a correlati...
Donnerstag, 11. Mai 2017
Random Forests
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Like mentioned in the post about decision trees , the big challenge to face is overfitting. To adress the issue, a concept developed by ...
Dienstag, 2. Mai 2017
R - Simple Data Preparation
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R covers a huge variety of functions for data manipulation, reorganization and separation. Here are some of the commands I consider the ...
Mittwoch, 26. April 2017
R - Packages and DataTypes
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Packages Functionality is maintained in packages. Some packages are part of the basic functionality and are predefined when you inst...
Donnerstag, 20. April 2017
Null-Hypothesis, Z-Scores and Normal Distribution
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This is Carl Friedrich Gauß, one of the most friendly looking German mathematicans, on a banknote. Nowadays Germany forms part of the Eur...
Dienstag, 18. April 2017
Null Hypothesis, P-Value and Significance Level
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What is the null hypothesis ? That's easy: It is the assumption, that an observation is simply due to chance. The contrary assumpt...
Donnerstag, 13. April 2017
R - How to Start
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Welcome to a new challenge - an empty green meadow is waiting to be explored and developed! R is a pretty strange programming langua...
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