Averaging data in a 2D matrix in a selective way.

[luisbgomez]

Hi everyone!

This one should be easy, but I can

[WMassey]

Just a quick observation based on the example you posted:

You are not averaging the values. You are summing the values.

I assume, based on your example, that summing is what you want?

Here is a VI (lv 7.0) that will produce the output array you show for the input array you gave.

Download File:post-2800-1138456176.vi

[luisbgomez]

Hi everyone!

This one should be easy, but I can

[WMassey]

Hi, and thanks for the solution :worship: . You are right, I placed the sum, this was a mistake. Thanks again.

Figuring the average is a bit more tricky but the VI attached seems to do it.

Download File:post-2800-1138497982.vi

[luisbgomez]

Figuring the average is a bit more tricky but the VI attached seems to do it.

:thumbup: Thanks WMassey for coming to my resque again. After seeing your first solution I struggel with the average part for a while and went to bed with out getting it. It is nice to come back to work to find your gift.

[WMassey]

:thumbup: Thanks WMassey for coming to my resque again. After seeing your first solution I struggel with the average part for a while and went to bed with out getting it. It is nice to come back to work to find your gift.

You are welcome. A bit of struggling is good. It's how we learn.

I should point out to anyone who might try to take these example VIs out of context, one of the starting conditions of the incoming array specified in the original post was "The data in the X column is sorted in ascending order". While the example VIs don't care if the X data is ascending or descending, the input X data must be sorted so that all identical values of X are grouped together.