Thanks for the jq recipes! jq is very powerful, but horribly underdocumented.

While looking at your standard deviation recipe, I threw the numbers into Google Sheets (and Excel) and your the results did not match - which bothered me. Long story short, your recipe is for the biased standard deviation (and variation) while the Google Sheets and Excel functions calculate the unbiased standard deviation (and variation). While I do not fully appreciate correcting for biases, I am happy to know why the results did not match.

In your existing recipe, I did the following:

• changed mean to simply def mean: add / length;
• removed pow2 altogether and replaced its call with . * .
• simplified your data with just an array of the same numbers

Here is where I ended up:

def mean: add / length;
def variance_biased: . | mean as $mean | map_values(. - $mean | . * .) | mean;
def stdev_biased: . | variance_biased | sqrt;
def variance_unbiased: . | mean as $mean | map_values(. - $mean | . * .) | add / (length-1);
def stdev_unbiased: . | variance_unbiased | sqrt;

I noticed your GitHub profile picture is slightly sideways. Take this:

@remy

Hi,

I wrote a native macOS app to sort FAT drives. It has a UI, so easier to use, and it's free and open-source.

You can find it here: https://fat-drive-sorter.netlify.app/

I'm sharing this with you because when I first Google'd for a solution, your post came up.

I hope it helps 👍

Clicking the RSS link results in the following error

TypeError: Failed to construct 'URL': Invalid URL

JS Bin refactor: I've been working hard on a complete overhaul of JS Bin, "V5" by any other name. It's still in progress, and I intend to release it for public beta in early 2017.

Maybe you meant 2018?

There is a problem with this line of code:

pubDate= moment(post.data.date).format('ddd, dd MMM yyyy HH:mm:ss +0000')

https://github.com/remy/remysharp.com/blob/main/public/feed.xml.pug#L41

This is generating XML code like this:

<pubDate>026, 26 Mar 2023 22:43:38 +0000</pubDate>

This is an invalid value:

https://validator.w3.org/feed/check.cgi?url=https%3A%2F%2Fremysharp.com%2Ffeed.xml

As a result, in the Feedbro feed reader, the same feed items are being repeatedly marked as new over and over again because Feedbro ignores the invalid date values.

The link found in

Because the compile reads the version before the actual version, which means some files are re-released necessarily.

Sorry Remy me again.

Clicking on the feed link in Chrome (55.0.2883.87) and Opera results in the following error

error on line 7 at column 40: Opening and ending tag mismatch: link line 0 and head