Our Covid19 app provides a global view of the pandemic, but how effective is the vaccination in Switzerland? Since May 2020 we are showing a dashboard on our gallery that contains a global view of the COVID-19 Pandemic, with a further split by conti...

This is a follow-up post. If you are interested in other posts of this series, please go to: https://www.statforbiology.com/tags/drcte/ Time-to-event models for seed germination/emergence The individual seeds within a population do not germinate/e...

Problem Setting In our forthcoming paper on Annals of Applied Statistics, we propose a new method – which we call Bayesian Causal Forest with Instrumental Variable (BCF-IV) – to interpretably discover the subgroups with the largest or smallest cau...

Series of Apache Spark posts: Dec 01: What is Apache Spark Dec 02: Installing Apache Spark Dec 03: Getting around CLI and WEB UI in Apache Spark Dec 04: Spark Architecture – Local and cluster mode We have explore the Spark architecture and look…Read more ›

This post shows how to interpret the results of the augmented Dickey-Fuller (ADF) test easily with the help of Hank Roark's R function. His R function provides kind descriptions of the results of a unit root ADF test. I explains why this description...

This post is part of our series on functions in R. You can see our previous post if you want to understand the basics but it is not strictly necessary. Here we will go into detail about for loops and if statements in R, two key elements of any function. ...

Series of Apache Spark posts: Dec 01: What is Apache Spark Dec 02: Installing Apache Spark Dec 03: Getting around CLI and WEB UI in Apache Spark Before diving into IDE, let’s see what kind of architecture is available in Apache Spark. Architecture…Read more ›

Visit for the most up-to-date information on Data Science, employment, and tutorials finnstats. If you want to read the original article, go here Error in apply: dim(X) must have a positive length Error in apply(data$x, 2, mean): dim(X) must have a positive length, In this post, you’...

This post explains how to use the augmented Dickey-Fuller (ADF) test in R. The ADF Test is a common statistical test to determine whether a given time series is stationary or not. We explain the interpretation of ADF test results from R package by m...

library(tidyverse)
library(tidymodels)
library(probably)
library(finetune)
library(textrecipes)
library(stopwords)
library(wesanderson)
library(kableExtra)
library(clock)
library(glue)
library(janitor)
library(vip)
library(ggrepel)
library(tictoc)
library(doParallel)

registerDoParallel(cores = 6)

theme_set(theme_bw())

(cols <- wes_palette(name = "Darjeeling2"))

The Natural History Museum began recording cetacean (whales, dolphins and porpoises) strandings in 1913. I’d like to explore this 1913-1989 dataset.

strandings_df <- read_csv("strandings.csv") %>%
  clean_names() %>% 
  mutate(
    date = date_parse(date, format = "%d/%m/%Y"),
    length = parse_number(length_et),
    species_lumped = fct_lump_n(species, 20),
    across(ends_with("_val"), as.integer)
  )

# glimpse(strandings_df)

Exploratory Some of the species labels contain a question mark or forward slash. This indicates uncertainty, so it might be fun to see if a machine ...

When learning R, it can be tough to figure out how to apply what you’ve learned to your own data. We often learn general skills that are helpful for manipulating our data, but things aren’t always so simple when it comes to your own analysi...

Visit for the most up-to-date information on Data Science, employment, and tutorials finnstats. If you want to read the original article, go here Aesthetics must be either length 1 or the same as the data Error: Aesthetics must be either length 1 or the same as the data, In this article, you’...

This post was originally published from IGIS as a Tech Note. Enjoy! Introduction iNaturalist is an enormously popular platform for recording and sharing observations of nature. Most people interact with iNaturalist through the Android or iOS phone app, but a little known fact is the platform also has an API (...