Hi,
I need a function sometimes called “moving average” on time series data measurements to reduce noise. I’m still a beginner using Kodular, so I have not yet succeed in writing an own (working) function for it.
Has anyone done this or is there an extension that can be used? An extension would be super 
I am a bit surprised that I have not been able to find anything on the forum about this kind of need as I think it should be a quite common need to reduce noise from various type of sensors.
Simple Moving Average ,
Weighted Moving Average, Exponential Moving Average ?
Simple moving average would be good enough.
It is not pretty (and sorry it is in App Inventor blocks) but this procedure will give a moving average set of values from a list of values. You can enter your chosen level of average e.g 1 will be the same as the data, 2 will half the values, 3 will 1/3 the values and so on. At some point a high enough number will give you a flat line!
what global avgdata could be like:
Thanks! Really interesting. I will test this later today The first case i will test it for is RSSI measurements using BluetoothLE, HM-10 and Arduino (using the tiny but powerful XIAO from SEEED). The RSSI measurement works great but the signal strength value really need a moving average.
The logic I applied considers even the newest value (last entry -FIFO), excluding, according to the period, the oldest ones.
Hi, I tried this alternative but I get a runtime error.
There is a difference however:
But I thought my implementation should be the same. But I cannot find the one you used (red marking)
Use
Thanks!
I need to learn a lot… but obviously no difference regarding the runtime error.
avgdata should be list
In addition, it is your list of input values, values that will be used for the functions mentioned above.
SMA ,EMA And WMA
Or…
Input data for your app.
Now it works
Made a minor adjustments to fit my application:
Thanks for all help!
I have added an example of “global avgdata” to my first post
No, don’t be, I added after you posted 
