Problem 39. Which values occur exactly three times?
Return a list of all values (sorted smallest to largest) that appear exactly three times in the input vector x. So if
x = [1 2 5 2 2 7 8 3 3 1 3 8 8 8]
then
y = [2 3]
Solution Stats
Problem Comments
-
5 Comments
why 'tabulate' function does not work here. It gives an error saying undefined function.
http://www.mathworks.in/help/stats/tabulate.html
Ashan, tabulate is in stats. Cody does not have Statistics Toolbox.
the in-build function tabulate cannot used in here.
I never thought I could use this line of code for this problem but what do you know
i have used a loop construct for this but apparently there are far faster ways (length: 20ish instead of 80-100)
Solution Comments
Show commentsProblem Recent Solvers4999
Suggested Problems
-
Return a list sorted by number of occurrences
2678 Solvers
-
2210 Solvers
-
Getting the indices from a vector
8935 Solvers
-
Find a subset that divides the vector into equal halves
384 Solvers
-
The Answer to Life, the Universe, and Everything
514 Solvers
More from this Author96
Problem Tags
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!