Matlab is really good for implementing evolutionary algorithms, however it is not free. So, I would suggest R, which is a free statistical-ready language and you can download it from https://www.r-project.org/.
R is a good option from the statistical point of view. If you are interested in more programming based solution look at Genetic Algorithms - Apache Commons: http://commons.apache.org/proper/commons-math/userguide/genetics.html