README.md

# Scary COVID-19 Graphs

Simple data crunching and graphing around COVID-19. In production [here](https://rys.io/covid/).

Before using this for anything serious, read the disclaimers on the site.

## Testing locally

This project is developed in the [PMF methodology](http://programming-motherfucker.com/).

Therefore, there are **no** external dependencies to pull, you **do not** need a local webserver, and you **do not** need `node` to use `npm` to get `yarn` to get `bower` to install `webpack`, because this techie happens to know how to left-pad without [`leftpad`](https://www.theregister.co.uk/2016/03/23/npm_left_pad_chaos/).

**Just clone this repository locally and navigate your browser to the `index.html` file (for example, `file:///home/user/Projects/covid/index.html`). It should just work. That's it.**

## Deployment

Copy the files to the location they're going to be served from. That's it. It's all just static.

## Privacy

There are no trackers, and [no third-party content](https://barnacles.online/). This is completely self-contained.

And it is self-contained because there is absolutely zero need for it not to be.

Remember this when somebody tells you again that they need Google Fonts ([nope](https://git.rys.io/rysiek/fonts-degooglifier)), dozens of MiB of JS from 10 different CDNs, and a Facebook log-in button just to make a single page displaying a graph. Because that right there is bullshit.
 
## FAQ

 - ***Wy does the data start on January 22nd, 2020?***  
   I'm using [John Hopkins University dataset](https://github.com/CSSEGISandData/COVID-19) (via [`pomber/covid19`](https://github.com/pomber/covid19)), and that's when it starts. I don't see any specific reason in the [WHO Timeline](https://www.who.int/news-room/detail/08-04-2020-who-timeline---covid-19), either:

>  22 January 2020
> 
> WHO mission to China issued a statement saying that there was evidence of human-to-human transmission in Wuhan but more investigation was needed to understand the full extent of transmission.

 - ***There are errors in the data / some data is missing!***  
   As mentioned above, I am using external source of data that I do not control. That being said there is a reasonably large chance that the error is in how I process/display the data. If you think that might be the case, let me know.

 - ***Some things do not work in Safari. Why?***  
   Because [Safari is broken](https://bugs.webkit.org/show_bug.cgi?id=119175), that's why.

 - ***Logarithmic scale does not properly show negative numbers!***  
   That's [true](https://canvasjs.com/forums/topic/negative-values-with-logarithmic-scale/), and [very hard to work around](https://canvasjs.com/forums/topic/negative-values-with-logarithmic-scale/)

## Changelog

### 14.12.2020

 - Added `incidence` chart for cases, recoveries, and deaths.  
   Fixes #3.

### 08.12.2020

 - Added `per-100k` chart data option.  
   Fixes #4.

### 06.12.2020

 - Changed the way rolling average is calculated: a rolling average over `n` days for the current day is now calculated from data from the day and `n-1` proceeding days, instead of centering the rolling average on the selected day.  
   Fixes #1.
 - The above also means we can easily support even numbers for the number of days a rolling average is calculated over. So we do. And as a cherry on top, rolling average over a period of up to 31 days can be selected; there are no and never have been any restrictions over period if entered directly in the url (for example, here's a [65-day rolling average of new cases in USA](https://rys.io/covid/#delta,average:65;united-states))
 - Updated population numbers, adding some missing countries.  
   Fixes #2.