throwaway283719

5 ms·

1.
by throwaway283719 11y ago
The UK soccer league is the most popular sport in the UK, and has a huge following elsewhere in Europe as well as in South America and Asia. For many of the biggest teams, the majority of their fan-base is outside of the UK. For many people
2.
by throwaway283719 12y ago
It is also useful for rewriting routines in the critical path for slower, but more productive languages. Particularly languages that need to do a lot of heavy-duty data crunching (think Python, R, Matlab, Octave). I mean, I guess you could
3.
by throwaway283719 12y ago
The situation is different because there isn't a 2000+ year history of Java developers discriminating against Lisp developers.
4.
by throwaway283719 12y ago
In fairness, thinking that 1 is a prime number (or just not knowing that it isn't) is in quite a different league to not knowing how to calculate the average of a list of numbers.
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by throwaway283719 12y ago
It is one of the top-ranked universities in Canada (roughly equivalent to an Ivy League university in the US, or Oxbridge in the UK).
6.
by throwaway283719 12y ago
Which other asset classes are you thinking of? I think that most transactions in cash equities, spot fx and futures are now done electronically. I'm sure that a large proportion of derivative trades are still done over the phone, but t
7.
by throwaway283719 12y ago
tptacek already responded to your previous comment about Flash Boys below [0] [0] https://news.ycombinator.com/item?id=9045150
8.
by throwaway283719 12y ago
The trouble with this argument is that, on basically every exchange in the world, you do not get to find out if someone has matched with your passive order until after the trade has happened. There is no possibility to "back away when
9.
by throwaway283719 12y ago
That would be a groupoid - http://en.wikipedia.org/wiki/Groupoid
10.
by throwaway283719 12y ago
No. For example, a FilePath is (after resolving a few other type aliases) data Root = RootPosix | RootWindowsVolume Char | RootWindowsCurrentVolume data FilePath = FilePath { pathRoot :: Maybe Root , pathDirecto
11.
by throwaway283719 12y ago
Would you back up your 99.9% confidence level with a bet? For example, I will send you $1 if he is convicted, and you will send me $1,000 if he is acquitted? If not, how much would you put at risk for the chance to win $1 if he is convicted
12.
by throwaway283719 12y ago
Yes. You can get significant signal attenuation (particularly at high frequencies, i.e. above 10 GHz) when it is raining.
13.
by throwaway283719 12y ago
The problem is that it is absolutely not a good primer on the subject, and the only way you could know this is if you have experience in electronic trading already. If you are trying to learn about electronic / high frequency trading
14.
by throwaway283719 12y ago
What markets is this done on? On most markets that I'm aware of, there is a fee for passive trades and a fee for aggressive trades. Sometimes the fee for a passive trade is negative (a rebate) which encourages liquidity provision, but
15.
by throwaway283719 12y ago
But McDonald's makes a profit every time I buy a cheeseburger from them. It's like the know the true price in advance, and set their prices so that they always make a profit. The cheeseburger market is rigged.
16.
by throwaway283719 12y ago
It looks like 20-25 of the Forbes "30 under 30" are YC founders or otherwise involved in YC - is that correct? An incredible achievement if so!
17.
by throwaway283719 12y ago
Most market making algorithms work like - Market state -> price forecast Price forecast + other factors (risk, liquidity) -> trading decision If you know (or have a good guess) how the algo
18.
by throwaway283719 12y ago
You generally receive a salary (dependent on what you do, what kind of firm you work for and how experienced you are, but $60-200k probably captures 95% of people) and a performance-based bonus which could be anywhere from 0x to 10x your sa
19.
by throwaway283719 12y ago
One (slightly cynical) answer is that people like to hire people like them. Most quant types working in hedge funds are very good at brainteasers, and if other people are good at brainteasers it ticks one of the "this person is like me
20.
by throwaway283719 12y ago
Kudos for having enough doubt that your intuition was correct to actually write the simulation! Self-doubt is a quantity often found wanting among smart people, computer programmers, and especially among the intersection ;)
21.
by throwaway283719 12y ago
You think it's a "bad" design decision because you think that a Python list should represent a vector of numbers (not even an array - a mathematical vector). But a list is much more than that - conceptually it's any orde
22.
by throwaway283719 12y ago
No. In the first case, the fact that the host shows you a goat has not put you in any new state of the world (the host was going to show you a goat regardless of what happened). In the second case, you now know that you are not in one of
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by throwaway283719 12y ago
The Monty Hall problem is actually a bit more subtle than this article makes out. The exact wording of the problem can change the answer. For example, in this version > There are two doors with goats and one with a car. You choose one do
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by throwaway283719 12y ago
"The exact quote is roughly" Um..?
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by throwaway283719 12y ago
Out of curiosity, what percentage of out-of-sample variance explained would convince you that a predictive model had some power? 0.1%? 1%? 2%?
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by throwaway283719 12y ago
I take slight issue with this quotation - > Though the idea of a street grid seems perfectly ordinary to city-dwellers today, it was unusual at the time. Most great cities in Mesopotamia, for example, had curving streets and a more organ
27.
by throwaway283719 12y ago
There's a fun piece of math you can do with this model. Given the relation w[t+1] = w[t] + (c[t] - alpha * w[t] - beta * d[t] * w[t]) / 3500 and assuming c, d are both constant (i.e. assume they are your long-run average of
28.
by throwaway283719 12y ago
I would say a "tick" comprises the timestamp (stored as a long int) and ten levels of the order book (bid price, ask price, bid size, ask size) each stored as a double-precision float or a long int, so that's (1 + 4 * 10)
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An anonymous drug user reveals why he regularly takes cocaine and ecstasy(theguardian.com)
1 points by throwaway283719 12y ago|0 comments
30.
by throwaway283719 12y ago
Haskell - fizzbuzz x = case (x `mod` 3, x `mod` 5) of (0, 0) -> "FizzBuzz" (0, _) -> "Fizz" (_, 0) -> "Buzz" _ -> show i mapM_ (putStrLn . fizzbuzz) [1..100]

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