You may want to check out some of Ernie Chan's material. He is a prolific blogger/author in the space and I know he uses MATLAB extensively for strategy prototypes. The sample strategies in his books are coded in MATLAB and available for download.
Bryan Fletcher
Product Manager
Algorithmic Trading
Email: bfletcher@fxcm.com
The book by Chan is worth to read, as well as MATLAB code.
I bought it my self too.
However, there might be another alternative way to trade automatically.
Try Selenium for web-crawling and siculi for screen automation.
Both are introduced within last few years and most does NOT even know it.