Loop subtraction between two arrays

[altenbach · Accepted solution]

Or this....

 

[libbyherself]

firstly thanks for all of your responses and time.

I have attached the VI as you suggest, I didnt want to do that originally because, as youll see theres a lot more going on in it, and well i know a lot of it is probably not "correct" or the best way to do things but it works for me and does what i need, and im not finished with it.

So, setting that aside, Array A is the one of 8 elements, Array B is the one i want to subtract from. I have also attached an example of the text files I am using, there a lot of them so im only attaching one just so you can see the format. 

Hope this helps you help me, it may just make things more messy and confusing

[libbyherself]

This worked perfect for me, thank you!!!!

[altenbach]

(Ah, I've seens part of that code before. You really should move the "spreadsheet string to array" out of the loop.)

SImply wire the "A" array to the lower input of the new for loop (remove the other small for loop, because it was to generate fake data, which you don't need). The rest should fall into place.

I am not sure why you re-read all files and do all these computations millions of times per second, because nothing changes between iterations of the inner loop. Once is enough! Save the electrons! 😄

[altenbach]

Just for fun, here's replacement code that does about the same thing of the bulk of your code. (might need a few tweaks).

(e.g. whatever you were doing to extract a simple colum from a 2D array was just mindboggling (array subset, transpose, reshape etc.)

 

[libbyherself]

thanks so much for youre input this is a HUGEEE help!