Butterworth Fltering

[JAP]

How can I apply a Butterworth filter (HP and LP) on my generated line graph which is supposedly an ECG waveform?

[Christopher]

How can I apply a Butterworth filter (HP and LP) on my generated line graph which is supposedly an ECG waveform?

There's some information about this in the Tutorials under:
%Program Files%\Steema Software\Steema TeeChart for .NET 2014 4.1.2014.02240\Docs\TeeChart for .Net Tutorials.chm

If you have a look at "Tutorial 7 - Working with Functions" you can see that there's a link to "Deriving Custom Functions" which I'm sure will be of some help to you.

[JAP]

Is that also available for TeeChart for Xamarin.Android?

[Narcís]

Hello JAP,

Yes, all function styles are available for Xamarin.Android too.

[JAP]

Do you have any recommendations what function(s) here is/are to be used in filtering my generated graph since I'm dealing with signals, specifically an ECG signal.

[Narcís]

Hello JAP,

The only function I can think of is the custom function with its calculate event as I posted here. If that's not enough you may create your own function deriving from Steema.TeeChart.Functions.Function base class, for example. An alternative would be using a third party component to calculate that, for example DewResearch's DSP Master which calculates Butterworth filter and integrates with TeeChart. If you are interested we should check with them if DSP Master works fine with Xamarin.Android.