Re: [Haskell-cafe] Interfacing real-time stocks data API

2013-10-09 Thread Alexey Uimanov
I did not find such a library, but I am interested in Haskell trading automation too. BTW, I am developing package for testing trading systems, it can just download historical data from some free russian stock services for now. https://github.com/s9gf4ult/hadan If you interested we could join

Re: [Haskell-cafe] Interfacing real-time stocks data API

2013-10-09 Thread Alexey Uimanov
Yes, the trading system, or code generator. It depends on what would be easier to implement. But firstly I need a simulator and history data crawler what I am working on. 2013/10/9 Miro Karpis miroslav.kar...@gmail.com Hi Alexey, thank you for response. You wrote that you are developing

[Haskell-cafe] FP relates events in NYC

2013-10-09 Thread Dan Frumib
Hi folks, I will be visiting New York at the end of the October and I would like to catch some cool Haskell events if possible. I'll be staying in the city from 29th of October to the 10th of November and I would like to plan my trip ahead. I am looking for anything nerdy: talks, seminars,

Re: [Haskell-cafe] Interfacing real-time stocks data API

2013-10-09 Thread David Fox
I would love to see Haskell bindings for this: https://us.etrade.com/active-trading/api On Tue, Oct 8, 2013 at 1:26 PM, Miro Karpis miroslav.kar...@gmail.comwrote: Please, did/does anybody tried to interface with Haskell some real-time stocks data API? If yes, please which one? So far I came

Re: [Haskell-cafe] Interfacing real-time stocks data API

2013-10-09 Thread miroslav . karpis
Yes, I also like that one. Problem is that they give access only to US citizens and some limited countries. m. -Original Message- From: David Fox d...@seereason.com To: miroslav.kar...@gmail.com Cc: Haskell Cafe haskell-cafe@haskell.org Sent: Wed, 09 Oct 2013 18:54 Subject: Re:

Re: [Haskell-cafe] Interfacing real-time stocks data API

2013-10-09 Thread Yuri de Wit
There is also Interactive Brokers API, which used to be a lower cost alternative. On Wed, Oct 9, 2013 at 1:57 PM, miroslav.kar...@gmail.com wrote: Yes, I also like that one. Problem is that they give access only to US citizens and some limited countries. m. -Original Message-

[Haskell-cafe] Fwd: [Haskell-beginners] RankNTypes + ConstraintKinds to use Either as a union

2013-10-09 Thread Thiago Negri
(from thread: http://www.haskell.org/pipermail/beginners/2013-October/012703.html) Why type inference can't resolve this code? {-# LANGUAGE RankNTypes, ConstraintKinds #-} bar :: (Num a, Num b) = (forall c. Num c = c - c) - Either a b - Either a b bar f (Left a) = Left (f a) bar f (Right b)

[Haskell-cafe] Case studies, step two

2013-10-09 Thread Mike Meyer
I want to thank everyone who provided pointers for the last question about this. They were a big help. We're now trying to narrow things down a bit. If you have either converted part of a business project from a language like ruby or python to Haskell, or have a business project that integrates

Re: [Haskell-cafe] Interfacing real-time stocks data API

2013-10-09 Thread David Johnson
IB is not real-time though. On Wed, Oct 9, 2013 at 12:48 PM, Yuri de Wit yde...@gmail.com wrote: There is also Interactive Brokers API, which used to be a lower cost alternative. On Wed, Oct 9, 2013 at 1:57 PM, miroslav.kar...@gmail.com wrote: Yes, I also like that one. Problem is that

[Haskell-cafe] RankNTypes + ConstraintKinds to use Either as a union

2013-10-09 Thread oleg
Thiago Negri wrote: Why type inference can't resolve this code? {-# LANGUAGE RankNTypes, ConstraintKinds #-} bar :: (Num a, Num b) = (forall c. Num c = c - c) -Either a b -Either a b bar f (Left a) = Left (f a) bar f (Right b) = Right (f b) bar' = bar (+ 2) -- This compiles ok foo ::

[Haskell-cafe] Suppressing HLint on pattern match of files

2013-10-09 Thread Graham Berks
Hi, would like to disable 'Top-level binding with no type signature' In my test modules that are prefixed with Test. Is this possible ?? Thanks ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org