I've done some maps in GNU R.
Here's a (cropped) choropleth map I did for a discussion thread about legislative representation in Europe:
https://lemmy.today/pictrs/image/b6f28602-ab94-4901-b5e1-158061624c75.png

source
if (!require("pacman")) install.packages("pacman")
pacman::p_load_gh(c("ropenscilabs/rnaturalearth",
"ropenscilabs/rnaturalearthdata",
"ropenscilabs/rnaturalearthhires"))
pacman::p_load(
countrycode,
dplyr,
ggplot2,
readr,
rvest,
tmap,
tmaptools,
viridis
)
page <- read_html("https://en.wikipedia.org/w/index.php?title=List_of_legislatures_by_number_of_members&oldid=1010580360")
df <- html_table(html_node(page, xpath = "/html/body/div[3]/div[3]/div[5]/div[1]/table"))
df$per_capita <- df$"Population/\nLower house seats" %>% parse_number()
df$name <- df$Country
europe <- df %>% mutate(continent = countrycode(Country, origin = "country.name", destination = "continent")) %>% filter(continent == "Europe")
shapes <- ne_countries(scale = "medium")
shapes_merged <- sp::merge(shapes, europe, by.x = "name", all.x = TRUE, by.y = "name")
map <- tm_shape(shapes_merged, projection = "epsg:3035", bbox = bb(c(-8, 34.5000, 43, 72))) +
tm_fill(col = "per_capita", palette = plasma(256), title = "persons", legend.reverse = TRUE) +
tm_borders(col = "black") +
tm_scale_bar() +
tm_layout(bg.color = "#e6f7fe", outer.margins = 0, legend.outside = TRUE,
legend.outside.position = "bottom",
legend.position = c(0,.9),
main.title = "Persons per Lower House Legislative Seat",
attr.outside = TRUE)
tmap_save(map, width = 1920, height = 1080, dpi = 96, "map.png")
And if so, what would you tell someone who is contemplating such a thing with no prior practical experience of such systems?
Depends pretty much entirely on what it is that you want to do and what software you're using.



For the US, my experience:
Way more smoking (which people also mentioned last time this was asked). Cigarette butts everywhere.
Government was more dignified.
Houses were smaller.
Cars were smaller. And more colorful -- the last decade or so has really favored colors between white and black. Oh, and a wider variety of interior upholstery.
Telecommunications were much more expensive.
People smashed trees into pulp, bleached it, rolled it into sheets, and then put their messages on them.
Libraries were more important.
Store selection was way, way more limited, and if you lived somewhere rural, even more so. Amazon and similar let you have anything delivered anywhere today.
I kinda miss some of the styles, like 1980s denim jackets, but there were also things that I disliked compared to today. Oh, yoga pants were not typically worn in public. Or flannel pajamas pants
that seems to be a thing where I am now. If you were female, you were a lot more likely to be waring a skirt or dress than today. Clothing was more formal, in general.
On that note, the necktie was still a thing. It's pretty dead today.
Carpeting in houses was more popular.
People spent a lot more time staring at the TV, which I think is a lot more mindless than Internet use today. Oh, and you had far fewer channels than you do on a TV today.
Lighting was yellower, because of the use of incandescents. Nighttime in houses was darker and yellower.
The logistics of communication and navigation were more complicated without GPS-equipped smartphones. One typically kept maps in the car. Asking for directions was a thing. You might even have a car compass. Finding payphones was a thing.
Much less omnipresent surveillance, like the security cameras and automated license plate readers of today.
If you had a computer, it was much more likely not to be connected to a network, so software couldn't rely on network access. It couldn't phone home or transmit information about you.
Video games were much less mainstream, especially before the 1990s. Not many adults playing them.
Way more handwriting done. The fancy pen was more of a thing.
Flashlights and penlights were more prominent, since everyone wasn't carrying a smartphone that could act as a flashlight.
I'd say that probably the majority of people wore a wristwatch.
Computers were much more expensive than they are today, and became obsolete far faster. The rate of computation speed increased such that about every 18 months, computers ran software twice as fast as before. This has a huge impact on other industries, since that constantly made new things viable.
Lots of devices with disposable batteries.
Dedicated portable music players with far less battery life were much more common. You carried around much less music.
Cars, IMHO, looked more interesting. Certainly more varied. Mileage was worse.
You certainly didn't omit spare tires in cars. Much harder to get roadside assistance.
I'd say that woodworking skills were more common. A lot of guys could and would do basic projects.
People spent more time outdoors.
People were thinner.
Motor noise was more obnoxious along roads. Cars are quieter today.
Airline security was way less obnoxious. Didn't have all the security screening stuff that 9/11 spawned. Air travel was more expensive.
More casual conversations with strangers that one sat near, I'd say. Smartphones severely degraded the custom of chatting with strangers.
Magazines and newspapers were much more common.