Dear Pierre, Thank you for your reply. I am note fully aware of the difference between numpy and scipy and also not a developer, but it seems to me this function could fit in scipy where you often will want to differentiate w.r.t. a particular variable. I am aware of diff, but it is really a much more basic function. In many areas of science and engineering is the sampling points of crucial importance, and having a function giving you the appropriate sampling points can be very important for accuracy. I have been missing this function several times my self, and hence the reason why I submitted it here. Anyway, if there is no interest, I will of course not peruse the matter further. Best, Robert On 2016-11-05 22:53, Pierre de Buyl wrote:
Dear Robert,
Dear all,
I implemented a simple function to differentiate an array which seems other people might like to have. It looks like: def diff(f, x, retval = 'same'): (...)
What do you think about adding it to scipy? I am not a SciPy developer myself but I thought that I would point out NumPy's diff function. It does not go as far as your routine in terms of options but goes most of the way. It applies the differentiation to order 'n' as an option
On Thu, Nov 03, 2016 at 08:37:07PM +0100, Robert Rehammar wrote: that is similar to the recursive application. Given this existing routine, the incentive to add another one might be low.
Regards,
Pierre
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