Articles by Michael

Copernicus OpenEO NDVI time series

August 19, 2023 | Michael

The European Union has recently deployed a bunch of tools to access the data produced by the Copernicus Earth observation program: cool browser, APIs, Jupyter notebooks. Jupyter notebooks are great: they allow to analyze satellite images without ...
[Read more...]

Cherry blossom

April 5, 2023 | Michael

It’s cherry blossom time… A nice dataset going back to the year 812 in Kyoto can be found here. It describes the phenological data for full flowering date of cherry tree (Prunus jamasakura) in Kyoto, showing springtime climate changes. Let’s draw… [Read more...]

Cherry blossom

April 5, 2023 | Michael

It’s cherry blossom time… A nice dataset going back to the year 812 in Japan can be found here. It describes the phenological data for full flowering date of cherry tree (Prunus jamasakura) in Kyoto, showing springtime climate changes. sa...
[Read more...]

Open and merge multiple shapefiles, updated

April 5, 2023 | Michael

CC BY-SA by INTVGene This old post sees a little traffic from search engines but is a mess after many editions due to the packages evolutions. So, how can we (chose your term) append, merge, union or combine many shapefiles or other spatial ...
[Read more...]

Open and merge multiple shapefiles, updated

April 5, 2023 | Michael

This old post sees a little traffic from search engines but is a mess after many editions due to the packages evolutions. So, how can we (chose your term) append, merge, union or combine many shapefiles or other spatial vector data in 2023 with R, preferably using tidyverse functions ? For good ... [Read more...]

One neighbour

March 26, 2023 | Michael

Today I saw this : So, Portugal has only one terrestrial neighbour. Opencage lists the other countries with only one neighbour. Can we get this by ourselves ? I miss Bahrain / Saudi Arabia because the Natural Earth dataset is not detailed enough… And the « new » Canada / Denmark border is also not taken ... [Read more...]

One neighbour

March 25, 2023 | Michael

Today I saw this : So, Portugal has only one terrestrial neighbour. Opencage lists the other countries with only one neighbour. Can we get this by ourselves ? library(tidyverse) library(rnaturalearth) library(spdep) # get data from Natural Ear...
[Read more...]

Population growth

February 10, 2023 | Michael

I just saw this article in Le Monde : « a pair of cats can produce 20,000 individuals in just four years ». (translation) That seems quite high… Let’s check! (additionally, the article is about feral cats preying on wildlife but we are shown a wild cat capturing a laboratory mouse!) This figure ... [Read more...]

Population growth

February 9, 2023 | Michael

Feral Cat Mom and 3 Kittens – CC BY-NC-ND by Chriss Pagani I just saw this article in Le Monde: « a pair of cats can produce 20,000 individuals in just four years ». (translation) That seems quite high… Let’s chec...
[Read more...]

Map your Strava activities

January 18, 2023 | Michael

Cilaos - CC BY-NC-SA r.iresmi.net library(tidyverse) library(leaflet) library(rStrava) library(sf) # Get your credentials from https://www.strava.com/settings/api app_name
[Read more...]

Minimal

November 15, 2022 | Michael

Piton de La Fournaise – CC BY-NC-ND by Jean-Paul Tonnelier Day 16 of 30DayMapChallenge: « minimal » (previously). Bare Réunion… library(rayshader) library(raster) library(tidyverse) library(fs) library(httr) library(glue) da...
[Read more...]

Food

November 15, 2022 | Michael

Day 15 of 30DayMapChallenge : « food » (previously). Results of State food controls in restaurants in La Réunion. [Read more...]

Food

November 14, 2022 | Michael

Rougail-saucisse Day 15 of 30DayMapChallenge: « food » (previously). Results of State food controls in restaurants in La Réunion. library(tidyverse) library(sf) library(janitor) library(glue) # https://geoservices.ign.fr/adm...
[Read more...]

Sugar

November 13, 2022 | Michael

Day 13 of 30DayMapChallenge : « 5 minutes map » (previously). Sugar cane fields in La Réunion [Read more...]

Sugar

November 12, 2022 | Michael

Sugar cane – CC publicdomain by Miwok Day 13 of 30DayMapChallenge: « 5 minutes map » (previously). Sugar cane fields in La Réunion. library(tidyverse) library(sf) # RPG région La Réunion édition 2021 # https://wxs.ign.fr/0zf5kvn...
[Read more...]

Scales

November 12, 2022 | Michael

Day 12 of 30DayMapChallenge : « scales » (previously). French « départements » at the same size but tidily ordered by area. [Read more...]
1 2 3 4 5 6 7

Copyright © 2025 | MH Corporate basic by MH Themes

Never miss an update!
Subscribe to R-bloggers to receive
e-mails with the latest R posts.
(You will not see this message again.)

Click here to close (This popup will not appear again)