how to subtract from every element in an array
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I have a very large double array in which every element needs to have 300 subtracted from it due to a mis calibration how do i do this?
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Calum Yates
on 3 Nov 2015
2 Comments
Stephen23
on 3 Nov 2015
Edited: Stephen23
on 3 Nov 2015
Try it and see! Your computer will not explode if you do a little experimentation:
>> [1,2;3,4] - 600
ans =
-599 -598
-597 -596
Or alternatively you could actually read the documentation for minus, which has an example of subtracting a scalar from a matrix, complete with the text "The scalar is subtracted from each entry of A."
Image Analyst
on 3 Nov 2015
Just a wild guess --- you didn't mean spatial calibration did you? Where your array (image) is misaligned and you want to shift it up, down, left, and/or right by 300 elements. If so, let me know.
By the way, you should respond as "Comments" rather than as a new independent "Answer" to your original question, unless your reply actually IS an answer to your original question.
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