Hello - I’ve been working on an open source reserving package called FASLR that is hosted on the CAS GitHub:
It aims to support open source reserving engines, although chainladder is the only one at the moment.
Here are some demo gifs of me doing random things in the program:
Basic interface:
Development factor averaging:
There aren’t very many developers on the CAS GitHub and I don’t know too many reserving actuaries, so I thought I should create a thread here to get some feedback and feature requests from the broader community.
The loss development pane now incorporates the selection of development factors and the calculation of ultimate loss. The user can select the LDF by double-clicking on the desired average and can also manually enter their own selection by typing in values into the selected LDF row.
It will be a long time until I can get things packaged into a proper .exe installer since that will require me to select and learn a build system - although the same would actually apply for Linux too. Right now everything is just a collection of Python files and since those are platform-independent you should be able to run the main file and have it work in Windows, although the look and feel will probably not be the same since I haven’t tested it out on that OS yet.
I managed to get it to work in my Ubuntu computer and it works well. I will play around with it this month as I do the interim results and will get back to you.
This is one of the best software I have used from open source. We tested it for our mid-years and the limitations were not from Faslr but from the underlying chainladder package.
