How do you feel about the fact that open gamma is written in java? Would you think this is a deal breaker?I am not particularly familiar with that language and have seen financial analytics libraries written in C++, maybe enhanced with some scripting tools.How does open gamma compare to QL?Thanks, m

I'd venture a guess that Java is pretty much on par in terms of use when compared to C++ in the financial industry outside of the dedicated quant space which isn't that big on C++ anymore compared to 10-15 years ago.

I don't think the programming language itself is much of a barrier, but how those two softwares are managed is very different. Both are poorly documented, but Dr Ballabio has at least attempted to document a part of the library, whereas there has been zero attempt in OpenGamma. Although OL is free and open-source, the developers are actually selling the library by technical support and commercial modules. They have no motivation to work with the community, advancing the state of the library. The OL guys are more interested to use their library in their trading platform, GUI etc. It's not their interest to help anybody who doesn't pay them.This is a bit different to QuantLib. Although I believe the library is being sold by Dr Ballabio's company, free community support is welcomed. That's why QuantLib is much more popular.OL is really a framework for quantitative finance, it has bunch of stuffs more related to user experience. This is different to QuantLib, where the library focuses just on financial modelling. The code in QL is cleaner, because it keeps the higher-level implementations away.

QuoteOriginally posted by: studentttI don't think the programming language itself is much of a barrier, but how those two softwares are managed is very different. Both are poorly documented, but Dr Ballabio has at least attempted to document a part of the library, whereas there has been zero attempt in OpenGamma. Although OL is free and open-source, the developers are actually selling the library by technical support and commercial modules. They have no motivation to work with the community, advancing the state of the library. The OL guys are more interested to use their library in their trading platform, GUI etc. It's not their interest to help anybody who doesn't pay them.This is a bit different to QuantLib. Although I believe the library is being sold by Dr Ballabio's company, free community support is welcomed. That's why QuantLib is much more popular.OL is really a framework for quantitative finance, it has bunch of stuffs more related to user experience. This is different to QuantLib, where the library focuses just on financial modelling. The code in QL is cleaner, because it keeps the higher-level implementations away.OL="Open Lambda"?

Oops, I kept on thinking "Open Lib".

QuoteHow does open gamma compare to QL?How long is a piece of string?When buying a car, you think about price, reliability, functionality, maintainability and all the other "ilities". What are the corresponding metrics for software? And it depends on who is asking the question? Depends what you are looking for I suppose.