[Scilab-users] "Smoothing" very localised discontinuities in (scilab: to exclusive) (scilab: to exclusive) curves.

[Claus Futtrup]

Hi Buk

Thanks for sharing information about what you're doing. Quite 
interesting ... I sometimes work with magnetic simulations (but not FEMM).

Regarding "CWA Scilab", I ran a simple Google search for you:
https://atoms.scilab.org/toolboxes/CWA

Best regards,
Claus

On 04-04-2016 20:38, scilab.20.browseruk at xoxy.net wrote:
> Serge,
>
>> If your data are regulary sampled along the y axis you can use the
> The X-axis is the controlled variable, the Y-axis the dependent.
>
> However, (from my understanding which is sketchy), the software controlling the input has a feedback loop and attempts to adjust the rate and spacing of the input to provide good data around the fine detail of the slope; so the input isn't necessarily exactly linear, though if you inspect the output closely, it seems to have a linear step size.
>
> Indeed. I suspect that the discontinuities I'm seeing are a result of the control software back-stepping around certain positions to correct for detected 'external influences' (such as eddy current build-up or induction lag). It is this hypothesis that I am going to try to get conformed by the equipment manufacturer.
>
>> sgolay filter
>> (http://en.wikipedia.org/wiki/Savitzky%E2%80%93Golay_filter">http://en.wikipedia.org/wiki/Savitzky-Golay_filter)otherwise
>> the loess regression
>> (http://cran.r-project.org/doc/contrib/Fox-Companion/appendix-nonparametric-regression.pdf)
> That pdf does not seem to be available to me? (The requested URL was not found on this server)
>
>> may be tried .
>>
>> Both methods and others  like medianfilter , sdfilter, ... are available
>> in the CWA scilab module...
> 'scuse my ignorance of these things; but it the "CWA scilab module" available as an ATOM? (If so, in which category?)
>
> Or should I be looking somewhere else?
>
>> Serge Steer
> Cheers, Buk.
>
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