I never really took a look at Weka since I am using the results commercially (or rather my clients do) and I think I "distribute" that software.
Now maybe I could make the case that I am not distributing the software but I write it in their name and on their bill. In other words, I can use it as long as my job is to write software (for them) instead of creating a product that I will sell.
Still, I prefer to stay away from it as long as possible but I agree it will be hard for some tasks such as decision trees which are unfortunately a very nice fire and forget algorithm.
There are people claiming that you can do most of classification and regression using logistic and linear regression, so I try to stick to that as long as possible and incanter allows for that.
Now maybe I could make the case that I am not distributing the software but I write it in their name and on their bill. In other words, I can use it as long as my job is to write software (for them) instead of creating a product that I will sell.
Still, I prefer to stay away from it as long as possible but I agree it will be hard for some tasks such as decision trees which are unfortunately a very nice fire and forget algorithm.
There are people claiming that you can do most of classification and regression using logistic and linear regression, so I try to stick to that as long as possible and incanter allows for that.