How can I count the number of times a specific value appears within a range in a 1D vector?
2 views (last 30 days)
Show older comments
Caesar Hernandez
on 27 Apr 2020
Commented: per isakson
on 29 Apr 2020
Given a 1D vector, x, that has 600000 elements, how can I count the number of times the value 1 appears after the 150th position (excluding 150)?
0 Comments
Accepted Answer
More Answers (2)
Ameer Hamza
on 27 Apr 2020
Edited: Ameer Hamza
on 27 Apr 2020
Try this.
x = randi([1 10], 1, 600000); % random vector
result = sum(x(151:end)==1);
per isakson
on 27 Apr 2020
If x is a vector of whole numbers
sum( double( x(151:end)==1 ) )
else
sum( double( abs(x(151:end)-1) < small_number ) )
2 Comments
See Also
Categories
Find more on Matrices and Arrays 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!