On 4/26/07, Anton Sherwood <[EMAIL PROTECTED]> wrote:
Travis Oliphant wrote: > cmp(x,y) must return -1, 0, or 1 which doesn't work on arrays with more > than 1 element because it is ambiguous. Thus you get this error. Ah. Since lists *can* be compared, I assumed arrays would inherit that property. > The operation is undefined. What do you actually want to do when you > have equal-valued eigenvalues? Don't care. All I really need is the four highest eigenvalues and their vectors. I'll have a look in "Python Cookbook" to see if there's a more efficient way to do that partial sort.
I don't think there are any partial sorts available. I think the best approach in this case an argsort on the eigenvalues, followed by a take using the last four resulting indexes would be the way to go. Chuck
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