Easy Interpretations of ADF Test in R

December 5, 2021 | sang-heon lee

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...
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Why R? 2021 Invited Talks

December 4, 2021 | Why R? Foundation

This year we are organizing the fifth edition of Why R? 2021 conference. As the meetings are held in English we invite R users from all over the globe! The program is available on our youtube.com/WhyRFoundationVideos channel. Go and check what lecture... [Read more...]

Augmented Dickey-Fuller (ADF) Test in R

December 4, 2021 | sang-heon lee

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...
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Sea Monsters that Lost their Way

December 3, 2021 | R | Quantum Jitter

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 ...
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Mapping iNaturalist Data in R

December 3, 2021 | Andy Lyons

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 (...
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Advent of 2021, Day 2 – Installing Apache Spark

December 2, 2021 | tomaztsql

Series of Apache Spark posts: Dec 01: What is Apache Spark Today, we will look into installing Apache Spark. Spark is cross-platform software and therefore, we will look into installing it on both Windows and MacOS. Windows Installing Apache Spark on…Read more ›
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My Courses are now Free

December 2, 2021 | Ari Lamstein

A few months ago I announced a change in direction: rather than continuing to focus on Choroplethr-related development and introductory R training, I was going to focus on the broader field of Analytics Engineering. Today I am happy to announce that that effort has resulted in a new job. I ... [Read more...]

Why R? 2021 Keynotes

December 2, 2021 | Why R? Foundation

This year we are organizing the fifth edition of Why R? 2021 conference. As the meetings are held in English we invite R users from all over the globe! The program is available on our youtube.com/WhyRFoundationVideos channel. Go and check what lecture... [Read more...]

What statistical test should I do?

December 1, 2021 | R on Stats and R

Being a teaching assistant in statistics for students with diverse backgrounds, I have the chance to see what is globally not well understood by students. I have realized that it is usually not a problem for students to do a specific statistical te...
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Why R? 2021 agenda is published!

December 1, 2021 | Why R? Foundation

We are 10 days before the fifth edition of Why R? 2021 conference. We just released the full agenda of the conference. The program is available on our youtube.com/WhyRFoundationVideos channel. Go and check what lectures and discussion panels we plann... [Read more...]

Advent of 2021, Day 1 – What is Apache Spark?

December 1, 2021 | tomaztsql

Apache Spark is an open-source unified analytics engine for large-scale data processing. It provides an interface for programming entire clusters with implicit data parallelism and fault tolerance. Originally it was developed at the Berkeley’s AMPLab, and later donated to the…Read more ›
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