skysight-inc/HackerNews huggingface dataset:
If you look at:
https://github.com/Emsu/prophet/blob/master/prophet/data.py

There's a PandasDataGenerator which is a wrapper around the pandas libary's DataReader. For the Yahoo source, you can have the following data options: "Open", "High", "Low", "Close", "Volume", "Adj Close". The YahooCloseData generator actually uses "Adj Close". You can implement high, low or open by copying the YahooCloseData generator and getting the respective key instead of "Adj Close". Feel free to contribute these generators upstream too :)

If you're looking for modeling out the uncertainty, see the slippage section in:

http://prophet.michaelsu.io/en/latest/advanced.html#slippage...

If you have a dataset that provides more frequent than daily data, you can store the sell order on your order generator and process it the next tick. That combined with slippage and commission will probably give you the most accurate trading model.

Let me know if you have any other thoughts on how it can be better modeled.
Viedit
Scientists Unlocked the Mystery Behind Exoplanets’ Magnetic Field
Annoyingly, neither the article, video, or original paper show any images of (or links to) the actual paintings:

https://en.wikipedia.org/wiki/The_Starry_Night

https://en.wikipedia.org/wiki/File:Vincent_van_Gogh_%281853-...

https://en.wikipedia.org/wiki/Road_with_Cypress_and_Star

https://en.wikipedia.org/wiki/File:Vincent_Willem_van_Gogh_1...
I actually really want to support it. If only I could get my hands on some tick data... any ideas?
They imply that providing a firmware update for free is a massive gesture of good will for existing users. When is this not the norm??
The FAQ says no, they aren't even a little waterproof.
What is a Brain State? [pdf]
FreeBSD 8.4 is supported until 2015-06-30. FreeBSD 8.0 was released on 2009-11-25. Odd numbered minor releases and the last minor releases in a major release are supported for 2 years.

Sorry, I misread the release table. Then, that is pretty impressive, 6 years for a major release!

Why would want to run 10 year old binaries if a compatible and improved version exists?

Personally, I don't but in many enterprises a new stable release is often only introduced after a 1-3 years. Then it is to expensive if support runs out quickly.

When I was involved with CentOS (ca. CentOS 4 & 5) era, there were still many companies running 2.1 and 3.
There is an underlying assumption to a lot if this thread that it's the person that is "worth" an amount. But, worth depends on what you do and price depends on how hard it is to find someone else to do it.

Managers are worth a lot and the difference between the best option and the second best one is greater, at least that's what the market seems to be saying. You are worth x doing X job and y doing Y job. It may also be true that you are worth more to employer x than y.

It's ok to make decisions not solely based on price.
From the FAQ:

Is the board waterproof?
No, riding the board in wet environments like rain, snow, mud, or through puddles can permanently damage the electronics and battery, cause the bearings and hardware to corrode, and may cause board failure at speed. Please DO NOT RIDE IN WET ENVIRONMENTS. Riding in wet conditions is slippery and extremely dangerous on any skateboard. Damage due to water is not covered under your warranty.
Went through the videos. Really nice stuff.
Because it simply is too complex for a format that emphasizes easy readability. Some easy-to-grasp subset of YAML might be a good choice.
Wow, where do you guys come from? At my current gig, as a contract engineer I make two times more than the department director, who is 4 levels up in the hyerarhy.
Thank you! It seems my confusion arose from assuming this is a power generator, while it is a storage device.
I don't disagree with the initial premise of the article, but I think it misses that while developers have become substantially more productive, it has also become substantially easier to be a productive developer which has caused the value to maintain its current equilibrium.
Hm, Best Korea is real.
For me at least the problem is not the basic "trigger A on event B", but the whole jungle of systemd-*d's that have sprouted and their tight coupling to systemd-as-pid1.
Umati: using R and python to study inflammatory speech online
Significant whitespace in configuration files... what could possibly go wrong.

Didn't we learn something from Makefiles here? Does that 'tab' look like 8 or 4 spaces to you?
Telltale’s Game of Thrones for iPad and iPhone
GBA4iOS 2.1 for iPad
Slides 21 to around 30 seemed like an argument for something like systemd - a 'stack' in the middle between the kernel and the applications. I saw it as a back-handed compliment. One has to remember that the slides supported a talk and talks need a little humour sometimes.
Interesting theory, but one which my guess is unlikely to hold up if the study is carried out it in really mountainous, high altitude areas.
I hope he has better evidence than what is presented in this article - a line chart that should have been a histogram and which muddies the data by inverting the supposed cause and effect; a study that shows a decline in the psychological well being of a group of Marines after a month training at altitude that is blamed (incredibly) on the altitude and not the training; various anecdotes.
>I'm curious what plotting system does actually let you plot 100,000 points without choking.

Datagraph for OS X handles ~1 million points without breaking a sweat, and it's an interactive GUI application.
This was also one of the major changes in the Android ART VM vs Dalvik.
Show HN: AlphaTracker – Reddit for Stocks
I'm sorry, but I still don't get what you are trying to say.

For one, caches are not exactly located on customer premises, either, right? They tend to be located in places that have easy access to power and are well-connected with fibres, and so far transmission speeds seem to be mostly going up.

Also, well, yes, social networks tend to be geographically localised, so I would very much expect p2p application traffic to also be geographically localized!?

Widely consumed content that's distributed in a p2p fashion obviously is just as amenable to caching as widely consumed content that's distributed by a central service, if it's distributed through some kind of content-addressed network. If that's cheaper for the ISP, they could just put caching nodes into their data centers.

Finally, I completely don't get why you think my communication should "generate revenue". My telephone calls don't generate any revenue either, do they? I simply pay someone for moving my bits around, that should be sufficient motivation for them to take care of moving my bits around.
WordPress 3 Persistent Script Injection via function wptexturize
From the same mob that has bought us the rugged modem BRCK and the crowd mapping Ushahidi software, this project is the result of some great work from the Kenyan iHub hackspace/incubator. Refined over many months with a focus on Kenyan political situation, it's application in other places would be welcome. I believe the group have been asked to set up for the coming Ethiopian and Nigerian elections in 2015.
Ask HN: Can we talk about FreeBSD vs. Linux?
Since the recent surge of interest in FreeBSD I've been curious to find out more about it. I did some Googling but couldn't find any quality articles discussing FreeBSD from the common Linux-er's perspective.

I did find this: https://www.over-yonder.net/~fullermd/rants/bsd4linux/01. It doesn't have a date, but he mentions using GCC 3.2.2, which came out in 2003, so I'd say the info is pretty out of date.

Can we share some links and knowledge?

PS: I'm sure I speak for everyone when I say I'm not remotely interested in arguing over which system is "better" - I just want to know about differences in design and unbiased identification of strengths and weaknesses.
They also have an (a bit difficult to find) SDK [1] available, for those not using Skype or Lync. But then there are cheaper [2] or different [3] alternatives if you don't need the existing integrations.

[1] http://blynclight.proboards.com
[2] http://blink1.thingm.com/buy/
[3] https://blinkinlabs.myshopify.com/products/blinkytape-basic
You could install Forth on one: http://www.somersetweb.com/4E4th/EN.html

You might need a slightly more powerful MSP430 than the chips that came with your launchpad if you bought the first revision of the kit. MSP430G2553s cost about $2 in small quantities.
nice!this will make ruby usefull for a new range of applications like games,sound synthesis,...
Are you sure that "complicated" and "secret" don't just mean "I don't know how it works" and "I haven't bothered reading the documentation"? There really isn't much secret about it, and I do indeed send all my emails using a mail server running on my home router. Just because you haven't bothered to learn about something, doesn't mean it's somehow secret or unreasonably complicated.
Just take a PC... Windows is it's firmware and if you want to upgrade it, then you have to pay. (Or, switch to Linux).

Or take some cars which are different models, with different power/torque ratings, but mechanically they are the same - the only difference is made in the MCU software. Or cars with their maximum speed locked and only unlocked after paying a nice sum of money (iirc it was the VW Golf GTI).
Update : I failed today's interview as well. But I am not much concerned because the questions were quite silly. But a feeling of sadness is there.
How a checklist saved a little girl’s life
I should add that HN doesn't like brief, content-free "+1" or "this" comments, but a few sentences explaining why you liked a comment, and why it was exceptional in some ways, is almost never a problem, and are often greatly appreciated.

For example, you'll note that choppaface's comment has not been downvoted below 0, and probably has a few upvotes.

By the way, I also very much enjoyed your comment.
I have a hardware team located in Shenzhen,China that can produce this in volume, not sure if this is license-able, if it's free to manufacture I can do it quick.

one thing is that if this requires FCC certificate etc, which may also take a while.
I genuinely see nothing good about this product...
OpenBSD does not seem to have any interest in systemd-lookalikes.
The article implies that the location is causative, IE that living in mountainous, rural regions causes depressive symptoms. You could also make the argument that people with depressive symptoms might be drawn to mountainous, rural regions.

I don't have any hard evidence or a citation to back this up, but someone once suggested to me that the reason suicide rates are higher in Western, "frontier" states is that people with mood disorders might tend to migrate away from population centers. Population density is highest on the East Coast, decreases through the Midwest, and reaches its nadir in the Rockies. Then it increases again as you reach the West Coast.

I think we could explain their data using that correlation alone. Based on what I'm reading from the article, I'd say my theory is about as strongly supported as theirs based on the available evidence.
Windows is it's firmware

For a PC I'd rather call it the software, or the OS, and call the BIOS it's firmware. Which can usually be updated for free.
It's all the right stuff to be thinking about. Pull from linkedin or something if you can't extract from a resume. Or hire some low wage work at home english majors to manually extract the resume data and offer people a "build my profile for me" option where they just send a resume.

And it's easy to spend a lot of time on dogfooding.

If people don't want free advice, they wouldn't need to post here.
I was hoping for support for ethically non-monogamous careers.
A PC with just a BIOS is unusable, though.
>>This is the problem: manager types
>>There is no such thing, it is an absurd invention.

Of course there is. Management as a career track attracts certain types of people, just like engineering. Every manager is different but they share a lot of common traits. Hence, "manager types."
Having worked with both ADM and CLRS, I still find 'Algorithms' by Robert Sedgewick & Kevin Wayne superior to both of them. Especially for beginners.

Thanks to motivated examples, actual implementations of the algorithms presented, detailed illustrations, cool experiments and intuitive mathematical analysis I felt I was growing after every page. I think, a human being is inductive - it’s easier to comprehend new material if first presented with examples and the practical side, with the theory and generalizations developed afterwards. Unfortunately, many books and courses teach things the other way around.
> Personally, I think the nicest and most expressive way is S-expressions.

Not only that. S-expr could be created automatically and run on the fly at runtime, new configurations could be added without restart of services, and Lisp has a well known powerful macro system. That way also "Python-ized" configs could be translated into s-expr easily. Such Lisp based configs could be run in a C embedded Lisp interpreter.

However, the FreeBSD team should at least seriously consider a new neutral logo. I wonder what BSD Unix has to do with the devil.
Ok it's under "Attribution-NonCommercial-ShareAlike" license.

NonCommercial — You may not use the material for commercial purposes.

That says no third-party can make it unless it can do it without making any profit, so this should be made by some non-profit organization I assume.
No real contradiction, the middle is in recession, while the economy at the very top and at the very bottom is in growth.

Jobs are being created, but a hell of a lot of them are the jobs that were still being done on behalf of US companies but were shipped overseas due to it being cheaper.

These jobs are not so much being created but are just being moved back now that other economies have grown, which should be good for the poorer sections of the US.

However the middle is being squeezed so you have well qualified people competing with the less qualified for the lower paid positions that would not previously have required many qualifications.

I strongly suspect (though given I am making a prediction about economics, full caveats apply) that the real story of the economy isn't so much that it is going into a period of recession or growth, it is more that it is becoming structurally unstable.

Not everything is a simple rise or fall in temperature. Some things are phase changes.

edit - Another thing to consider is that the banks are currently sitting on massive reserves that are maybe six times larger than normal. As soon as the interest rate is allowed to tick upward, the banks will plough that money into things, but while rates are low they can make more money by gambling. However, when that interest rate ticks upward, you will suddenly see a lot of land slip into negative-equity. This will temporarily destroy much of the house sales market while at the same time putting a lot of land going cheap at auction, meaning that the banks will put that money into new-build as that will bring more profit, so there should be a massive construction boom, while those in the middle who rely on being property owners will see their wealth diluted further. Maybe.
Did they check the lithium levels in those places?

http://www.nytimes.com/2014/09/14/opinion/sunday/should-we-a...
> However, the FreeBSD team should at least seriously consider a new neutral logo. I wonder what BSD Unix has to do with the devil.

It's not a devil, it's a Daemon. Like, Unix daemons (httpd, ftpd etc.)
I switched from MSP430 to the Freescale Kinetis line (ARM Cortex M0+ and M4) for larger projects. But these ARM chips are incredibly complex compared to the MSP430 microcontrollers. So for simpler projects where I really need to get results quickly, I still prefer the MSP430.

I'd argue that if you want to learn about microcontrollers, the MSP430 (especially the G2 value line) is a very good place to start. I am not very fond of Arduino, because if you really want to know how a microcontroller works, you will not learn that with Arduino. It hides everything from you, presenting an overly-simplified API.
> argument for something _like_ systemd

Correct. Unfortunately systemd is not a well separated 'stack' in the middle between kernel and applications but an interweaved network which tightly connects all three parts.

I hope that the community has learned from the SystemV/systemd discussion and will go a new way which avoids the weaknesses of both systems towards a cleanly separated layer.
Same that goes wrong in Python: Nothing. As long as tabs are outlawed, anyway.
MRI still has the global interpreter lock, i.e. is effectively single-threaded for CPU-bound tasks.

IO/waiting for forked jobs can be done in background threads since the lock is released on some select function calls.

So while incremental GC certainly does bring down latency caused by the GC it does not bring down latency for tasks that could be parallelized.
Also, "TradeWars is often cited as an influence by game developers. Examples include Paul Sage, lead designer of Ultima Online..."

http://en.m.wikipedia.org/wiki/Trade_Wars#Legacy
Regarding the configuration formats, I would recommend TOML.

In fact, I hated it because it seemed to be just "another standard" that unnecessarily adds dependency.

But after using Rust, whose package manager forces me to write the package configuration in TOML, I found the format is more like "JSON designed for configuration file." As you said, JSON is full of ':', '{' and '}'. And it is natural because it started from data interchange format, not for handwriting. TOML solves this problem very well IMHO.

Also, unlike XML that requires an external structure to validate the types of the values, TOML values have types, just like JSON.
So to continue the IT parallel, that'd be setup (hiring and training) and maintenance/debugging (hr complaints and problem resolving) imo. My personal hunch would be that viewing the whole thing in a systems context, the EOs would be engineering. After all, they decide how the company is run at a top level, and either assemble a functioning "people stack" or set guidelines for doing so. In that vein, components/prospective employees are churned out by the education system as a broader whole, and the raw material for that...alright, i think that's taking the metaphor far enough.
That's not your worth. It's your worth to that particular employer. It is defined by what value you can deliver and how much the other side needs that value.

It sounds pedantic but I think it's a very important distinction.
How to Tunnel HTTP-Protocol with a Simple Java Proxy Server Through a Firewall?
Here's a machine that turns water into synthetic gasoline
The one great thing about OpenBSD, is that it provides a consistent, reliable, cleanly documented, constantly maintained, operating system.

There is such an emphasis on consistency, that a solid OpenBSD administrator, who last worked on OpenBSD in 2004, and then, 20 versions later, (OpenBSD releases a new major version, along with a full set of architecture releases and binary packages every six months, like clockwork) - would have zero problem understanding all of the system concepts. A few things have changed/updated/evolved, but a couple hours with the man pages would bring them right up to date.

OpenBSD is about very gradual evolution, not revolution.

My sense is that OpenBSD is not designed for Watches, Tablets, or SmartPhones. It is a world class Server, Firewall, Router, networking device, networking appliance operating system, and it's unlikely to ever lose that focus.

I'm pretty confident that we won't see anything like systemd confusing everyone on OpenBSD as long as Theo continues his steady management at the helm. Systemd actually serves some pretty important functions on systems that have a lot of dynamic services going up and down with dependencies, particularly on low-power devices, and on systems that require rapid parallel process initiation - so I'm not hating on systemd here, just appreciating the consistency that we find in OpenBSD.
The article is paid marketing content from GE. Just saying.
$1,100 per month from a Udemy course - https://www.udemy.com/building-and-selling-a-niche-website-f...
Take a look at GUIX (GNU Guile ~wrapper~ around Nix) http://www.gnu.org/software/guix/manual/guix.html#Programmin...

That said s-exp can be cryptic depending on how you design your DSL, but overall it's a 80% great to read and easy to process, plus chopping s-exp in s-exp aware editors (not pointing at some very old very large one here)
This is entirely personal opinion as-is. Perhaps you could discuss what you see as being bad about this product.
If you use the term "Open Source" as a verb, you're probably Doing It Wrong.

If you develop a piece of software in the open, preferably with a community around it, then you won't be able to get away with it being impossible to deploy or containing inappropriately-licensed subcomponents. If you don't, you'll likely run into all of the problems the author mentions, and more, when you go to 'Open Source' it. Not only that, but there'll be nobody to maintain the resulting project, and it's likely that nobody will actually benefit.

Open Source is great (FWIW I work exclusively on Open Source at the moment), but it isn't like a condiment you can spread on after the fact. It needs to be baked in to your strategy.
So yeah, okay, then Tibetan Monks and people living there should be very unhappy.
All the positive comments about ADD and ADHD medications in the article, and the fact this is sponsored by GE makes me feel this is a paid article made to promote more medication and move people away from the real cause that is causing more and more suicides all the time, and that is, mood-affecting medication. Do your own thinking.

Direct quote from the article: "There is such thing as too much fresh air" :D
Great saas's! how much $$ from this saas you paying to servers?
I have a large box full of MSP430s that i make into stuff all the time. There are a lot more tools now, including a simple editor like Arduino has called Energia. You can make pretty much anything you can make with an Arduino. I've made a number of different music makers and various toys. I often find the most fun with taking a specific kind of sensor, figuring out how to use it, and then making some sort of game or toy out of it.
Finland: Typing takes over as handwriting lessons end
Sorry, autocorrect.

Look for the 'sparkfun redbot'
Would you advise against CeroWrt? Why? Is there something wrong with it? FYI, CoDEL is not only reason one would want CeroWrt; see (http://www.bufferbloat.net/projects/cerowrt) and (http://www.bufferbloat.net/projects/cerowrt/wiki/How_is_Cero...).
Liked the idea and saw the site got the same thought!
The Caveman’s Home Was Not a Cave (2013)
I was confused by the chart. Higher suicide rates cause higher altitudes? If the axes were reversed, the interpretation would seem very different (rate shoots up for a small change in altitude, then levels off at higher altitudes). Also the buckets are unequal (but maybe that's what vingtile means. What is a vingtile, anyone?)
How Many Connected Device Entrepreneurs Does It Take to Screw in a Lightbulb
What your opinion about the Stm32Cube libraries, that try to have high level api's while still offering low level api's as needed - while still saving you some effort in learning the device?
What Apple Knows about Us
Facebook scams – Top 5 categories identified by a 2-year study
This would seem to be one of the most easily controlled studies possible. Some observations of various individuals at various levels of oxygen in hypobaric chambers (some of them come equipped for extended living) would provide solid evidence one way or another for this hypothesis.

Particularly in a controlled environment, assessing the individual's mental health should be straightforward.

And I have to believe that GE likely even has a branch that manufactures hypobaric chambers...