Re: Software suggestions

>>From what you write, I think that the following is the case:

You have a table of data.

You want a formula that relates some variable "Results" to some other
variables "var1", "var2", "var3" ... "varn"

If you were interested in linear regression, then you'd want to find
weights b0, b1, b2, b3, ..., bn such that:

Results = b0 + b1 * var1 + b2 * var2 + b3 * var3 ... + bn * varn

minimises some goodness of fit measure. E.g. least squares.

However, you don't know the form the expression should take. Hence you
want a program that finds the formula for you. You're disappointed by
what you find in R because the various procedures in R can typically
only be used if you give the structure of the formula, and R then finds
a "good" set of weights.

Is this the case?

If this is the case, then you are in trouble. Because finding such
formulae in data, at least in the relatively unrestricted (in terms of
possible structures present in the formula, over and above weights)
form that this problem is usually attempted in the field of machine
learning is far from a solved problem. Unless the relationship you're
searching for in your data is quite simple, even if you get hold of
such a program, it's unlikely to be much use to you. And if the
relationship is simple, you can probably find it by hand.

I think you need to be clearer about what it is that you want.

Cheers,

Ross-c

.

Relevant Pages