Hex String related problem

[GerdW]

Hi Simon,

have you searched for "moving average" in the forum?

Well, I would keep the last 10 values in an array (which is kept in a shift register). When a new value arrives, the oldest data get overwritten...

[simon76]

Hi GerdW,

I do seach the forum for moving averaging, and try it somehow still not able to get result. Refer to test.jpg

For moving averaging, i may need to get (t0 to t9)/10, follow by (t1 to t10)/10,...etc & plot to the graph.

If deleted the old data, it just like averaging which not a problem.

regards,

Simon

[RavensFan]

What result are you getting?

The one error that jumps out at me is the way you are replacing the element in the array.  For a 5 element array, the index of the last element is 4.  (Array indices are zero based.)  So it looks like you need a decrement (-1) function on the blue wire after you establish the size of the initial array.

[simon76]

Hi Ravens,

You are right. To get the 5 data moving averaging, initial array need set to 6.

Attach with the simulate pic.

Is it possible to get the "Mean" for hex string or still need to do convertion?

thanks and regards,

Simon

[RavensFan]

You aren't taking the mean of a hex string, you're taking the mean of the integer values you converted from the hex string.

The question is whether it is working for you now or not.  It seems like you've changed a lot more in that VI than what I told you.  You've changed 4 or 5 things.

[simon76]

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You aren't taking the mean of a hex string, you're taking the mean of the integer values you converted from the hex string.

The question is whether it is working for you now or not.  It seems like you've changed a lot more in that VI than what I told you.  You've changed 4 or 5 things.

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Since the incoming data is normal hex display (23f,..etc) --> convert to hex string --> convert to integer --> Take Mean --> plot to graph. Final result is to get the waveform. Is there any alternatively for better code improvement or remove unnecessary step of my code?? That's the Q refering to.

Yup. Is working now. If based on prev vi, how can need to amend??

Thanks once again for your help & guidance.

Regards,

Simon

[simon76]

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So it looks like you need a decrement (-1) function on the blue wire after you establish the size of the initial array.

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How can i do it??

[RavensFan]

Right click the blue wire, Insert, Numeric Palette, pick the -1 function.