Using ismember with some margin
2 views (last 30 days)
Show older comments
I asked a question yesterday and I got some good answers but there was a twist to my problem want to use a subset of number to find the index in a bigger set, my smaller set has some margin of error +/- 0.001
eg bigger set BS = [2.33, 4.551, 5.88, 3.98, 4.661, 7.98, 2.331, 9.55]
smaller set SS = [4.55 4.66 7.99]
I want to use the smaller set (SS) to pick the index of its location in the bigger set (BS)
I tried using find, ismembertol but not working well
I will be happy to figure this out
1 Comment
Jon
on 3 May 2023
Would be better to preserve the history and responses so far to continue your original post with this as a comment, rather than opening up a new question.
Answers (2)
Walter Roberson
on 3 May 2023
ismembertol by default uses relative tolerances. To use absolute tolerance with it you need to set the relative portion to 1 and use one of the named options to set the margin to the absolute value you want.
1 Comment
Walter Roberson
on 3 May 2023
Sorry details were slightly wrong, see https://www.mathworks.com/help/matlab/ref/ismembertol.html#bup2c1a
See Also
Categories
Find more on Startup and Shutdown in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!