On 12/29/06, Stef Mientki <[EMAIL PROTECTED]> wrote:

Does anyone know the equivalent of the MatLab "diff" function.
The "diff" functions calculates the difference between 2 succeeding
elements of an array.
I need to detect (fast) the falling edge of a binary signal.

There's derivate function in Python diff,
but when you use an binary (true/false) input,
it also detects rising edges.

Probably a stupid question,
but I still have troubles,
digging to huge amount of information about Python.

thanks,
Stef Mientki
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Stef,

Can you provide more context on your use-- are you receiving binary data
sequentially, or do you have a list or array of binary values?  Are you
using numpy/scipy?

Marcus
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