In order to know how did the fortune of billionaires change, one must follow their individual fortune changes. I will present in this post some basic technics about name recognition and data management to construct a cohort from the list of billionaires in 2010 and in 2020 extracted from Forbes.
An example of use of rvest and RSelenium to get data from a website. The goal here is to get the 2010 and 2020 list of billionaires from forbes, to then make a small cohort study
I will present the basic concepts of non-equi merges in data.table, and apply it to two common situations
I will present the basic concepts of non-equi merges in data.table, and apply it to two common situations
I will show my solution to efficiently identify persons and find someone in a data frame in R.
Use R to get data on pdf reports about COVID19 (spanish data or WHO)
A function to scrapp html table with cells spanning on multiple rows
Use R to calculate a gradient, and plot it with ggplot