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Data stored in a csv file can often contain JSON objects in one of the fields. The csv data can easily be loaded into a Pandas Dataframe for analysis. Fields of interest in the JSON object can also be extracted into their own column easily using Dataframe.Apply.
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A lot of time was spent in 2020 looking at daily covid numbers, which was getting overwhelming. Having taken a break for a while, this article combines covid data and vaccination data with population data to present a view of the countries with the highest deaths from Covid-19 and the vaccination status in the country.
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ipywidgets are interactive HTML elements that can be used in Jupyter Notebooks to interact with outputs such as tables and charts. This article briefly introduces ipywidgets and uses them to change the rolling day period in a chart for the rolling average of deaths from covid-19.
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Three dimensional objects are not easy to represent on a 2D surface such as a page or screen. In this article, inspired by chapter 3 of Math for Programmers book, we look at the cross product of two 3D-vectors and representing the surface of any 3D object as a collection of triangles. The cross product can be used to …
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Compressing multiple files into one archive file allows for faster files transfer. Image files in the form of jpg are already compressed and compressing them into zip files does not significantly reduce the file size further. However, it does reduce the number files to one archive file and this makes file transfer …
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The world around is in three dimensions, yet it is not as easy to represent on a 2D surface such as a page or screen. This article, inspired by chapter 3 of Math for Programmers book, looks at presenting 3D vectors with Matplotlib. It also shows how to calculate the length of 3D-vectors and explores the dot product of …
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A vector has magnitude and direction. A single point in 2D space can be considered a vector from the origin (0,0) to that point. Vectors can be described anywhere in 2D space using a point for the start and a point for the end. Multiple vectors can be connected together to create 2D shapes. This article will discuss …
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This is the first article on my notes from reading Math for Programmers. It looks at representing 2D vectors graphically with Matplotlib and visualising vector arithmetic.
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The daily counts of confirmed cases or deaths from COVID-19 can fluctuate greatly from day to day. This can be down to time factors such as week day vs weekend or delays in testing or gathering and collating results. A rolling average is a calculated average of different subsets of the full data set. It is used to …
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