MATLAB Answers

Subtract elements greater than a threshold?

5 views (last 30 days)
I have a 2048x10000 double precision dataset. Most values range from 0 to ~5000, but there are scattered values exceeding 1,000,000. After reading the manual for the instrument, I found that for numbers greater than 524287 (2^19 - 1) you're supposed to substract 1048576 (2^20). I had thought to index the data (ind = (test > 524287)) and then subtract the values from those indexed elements but have been unable to make it happen, often receiving the error: "Unable to perform assignment because the left and right sides have a different number of elements."

  0 Comments

Sign in to comment.

Accepted Answer

Walter Roberson
Walter Roberson on 23 Jan 2020
mask = YourArray > 2^19 - 1;
YourArray(mask) = YourArray(mask) - 2^20;

  1 Comment

Eric Beamesderfer
Eric Beamesderfer on 23 Jan 2020
Thank you, Walter. Appreciate your time and help!

Sign in to comment.

More Answers (0)

Sign in to answer this question.


Translated by