Publications by Vasileios Tsakalos
Descriptive Analytics – Part 0 : data exploration
Descriptive Analytics is the examination of data or content, usually manually performed, to answer the question “What happened?”. This is the first set of exercise of a series of exercises that aims to provide a descriptive analytics solution to the ‘2008’ data set from here. Download it and save it as a csv file. This data set which cont...
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Descriptive Analytics-Part 1: Data Formatting Exercises
Descriptive Analytics is the examination of data or content, usually manually performed, to answer the question “What happened?”. In order to be able to solve this set of exercises you should have solved the ‘part 0’ of this series, in case you haven’t you can find the solutions to run them in your machine here. This is the second set o...
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Descriptive Analytics-Part 2 : Data Imputation
Descriptive Analytics is the examination of data or content, usually manually performed, to answer the question “What happened?”. In order to be able to solve this set of exercises you should have solved the part 0 and’part 1 of this series, in case you haven’t you can find the solutions to run them in your machine part 0 and part 1. This...
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Descriptive Analytics-Part 3 : Outlier treatment
Descriptive Analytics is the examination of data or content, usually manually performed, to answer the question “What happened?”. In order to be able to solve this set of exercises you should have solved the part 0 and’part 1 , and part 2 of this series but also you should run this script which contain some more data cleaning. In case you h...
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Descriptive Analytics-Part 4 : Data Manipulation
Descriptive Analytics is the examination of data or content, usually manually performed, to answer the question “What happened?”. In order to be able to solve this set of exercises you should have solved the part 0, part 1, part 2 ,and part 3 of this series but also you should run this script which contain some more data cleaning. In case you...
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Descriptive Analytics-Part 5: Data Visualisation (Continuous variables)
Descriptive Analytics is the examination of data or content, usually manually performed, to answer the question “What happened?”. In order to be able to solve this set of exercises you should have solved the part 0, part 1, part 2,part 3, and part 4 of this series but also you should run this script which contain some more data cleaning. In c...
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Descriptive Analytics-Part 5: Data Visualisation (Categorical variables)
Descriptive Analytics is the examination of data or content, usually manually performed, to answer the question “What happened?”. In order to be able to solve this set of exercises you should have solved the part 0, part 1, part 2,part 3, and part 4 of this series but also you should run this script which contain some more data cleaning. In c...
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Descriptive Analytics-Part 5: Data Visualisation (Spatial data)
Descriptive Analytics is the examination of data or content, usually manually performed, to answer the question “What happened?”. In order to be able to solve this set of exercises you should have solved the part 0, part 1, part 2,part 3, and part 4 of this series but also you should run this script which contain some more data cleaning. In c...
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Descriptive Analytics-Part 6: Interactive dashboard ( 1/2)
Descriptive Analytics is the examination of data or content, usually manually performed, to answer the question “What happened?”.As this series of exercises comes to an end, the last part is going to be the development of a data product. Not everybody is able to code in R, so it is useful to be able to make GUIs in order to share your work wi...
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Descriptive Analytics-Part 6: Interactive dashboard ( 2/2)
Descriptive Analytics is the examination of data or content, usually manually performed, to answer the question “What happened?”.As this series of exercises comes to an end, the last part is going to be the development of a data product. Not everybody is able to code in R, so it is useful to be able to make GUIs in order to share your work wi...
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