In fact we are developing a datamining app.
for that i have developed a back propagation tool
That is quite fine running for classifiaction purpose.

But i need to do some input preprocessing
by PCA (Principal Components Analysis)
In that i have to determine the eigen values of a
n by n correlation matrix.

And here i have to develope an algo. for it.
I m seraching on the Net.

If u can help me some way.
Please do
by
-Anand