Can anyone help me with calculating the 1st derivative of a ppg signal ?

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RAJEEV KUMAR BABU
RAJEEV KUMAR BABU 2016-4-24
回答： Arnab Sen 2016-4-29
I tried using the diff command but later i realized that its just taking the difference.So can anyone suggest me how to go about calculating the 1st derivative of the ppg signal.
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Roger Stafford
Roger Stafford 2016-4-24
编辑：Roger Stafford 2016-4-24
Are the associated time intervals all equal or are they unequal? It makes a difference in the complexity of the derivative expression.

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Arnab Sen
Arnab Sen 2016-4-29

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