Sorting out 2D array by condition

[tomershtein]

Nice finding!
I'm taking part in a lab exercise and got those results as data. I thought to do analysis for the data with LabVIEW, although not required. I will check this matter, but I am trying to do the sum as mentioned before with legacy device but with no meaningful progress so far. Any lead you could give me?

[altenbach]

Well, how about attaching the second datafile so we have something to work with?

[tomershtein]

Attached is the 2nd data file.
I tried to sort the arrays using the following sequence-

But I got weird values back. Input are both columns of frequencies and the common values should enter new array in the output.

[altenbach]

Wouldn't it make much more sense to generate a suitable equally spaced linear frequency ramp, the use it to interpolate into the two datasets?

[tomershtein]

Your probably right, but how linearly set the between values?

[altenbach · Accepted solution]

Here's one simple possibility. Do it for both input files and combine the data. (Note that you probably want to apply a slight smoothing filter before interpolation. Not shown)

Of course you can create any ramp you like.