R:elementary

A short post on how we can position an outermost territory near the main map or insert an orientation map. In this example we use the typical map of Spain where the Canary Islands are located in the southwest of the peninsula.

The climate of a place is usually presented through climographs that combine monthly precipitation and temperature in a single chart. However, it is also interesting to visualize the climate on a daily scale showing the thermal amplitude and the daily average temperature. To do this, the averages for each day of the year of the daily minimums, maximums and averages are calculated. The annual climate cycle presents a good opportunity to use a radial or polar which allows us to clearly visualize seasonal patterns.

The tidyverse universe of packages, a collection of packages specially focused on data science, marked a milestone in R programming. In this post I am going to summarize very briefly the most essential to start in this world. The tidyverse grammar follows a common structure in all functions. The most essential thing is that the first argument is the object and then come the rest of the arguments. In addition, a set of verbs is provided to facilitate the use of the functions. The tidyverse philosophy and grammar of functions structure is also reflected in other packages that make its use compatible with the collection of tidyverse.

The first post of this year 2020, I will dedicate to a question that I was recently asked. The question was how to calculate the shortest distance between different points and how to know which is the closest point. When we work with spatial data in R, currently the easiest thing is to use the sf package in combination with the tidyverse collection of packages. We also use the units package which is very useful for working with units of measurement.