Hi Sergei

Very quick question - as I'm estimating parameters over a large-ish number of trees (200 or so) I build a long string to specifcy my likelihood function, and use "ExecuteCommands" to create the function.

The way I'm building this string, I'm sticking a comma after every element that gets passed as an argument, so I end up with a string that looks like this

LikelihoodFunction lf = (f1,t1,f2,t2.....f200,t200,    
[which I then would add an ");" to the end of before executing]

My question - is there a simple way to remove the terminal comma on this string, or do I need to be more careful about building the string to catch the case when I last go through the loop (and then, in that case, not add the comma)

Thanks

Aidan

thanks a lot for getting back to me on this so quickly, Sergei - that was exactly what I was looking for.

Aidan