counting duplicate numbers in a list

Hello, I thought I had seen this come up on the forums before, but I can't seem to find it.

I have a list of numbers and some of them are duplicates. I want to be able to either count the number of times each number is repeated, or find each number that is less than a certain number of duplicates (either would work, and I assume the steps to getting to both are very similar).

I would like to do it without vb or c# if possible.

Thanks, and I'll be hacking away at it in the mean time.

Replies to This Discussion

Permalink Reply by Chris Tietjen on October 24, 2012 at 5:24pm

Permalink Reply by Adam Laskowitz on October 24, 2012 at 5:44pm

Cool! Thanks Chris!

I actually figured out a way to do it, but it took way more components than this.

Basically, I created a range that my sample of duplicates would be in, tested if each number in the sample equaled each number in the range. Then I culled pattern each number in my sample list. Then finally used List Length to find out how many times each number was duplicated.

Your solution is much more graceful

Permalink Reply by Sarthak Chakraborty on September 10, 2018 at 1:23pm

Can you please show the entire process ? I am using float numbers which cannot be done using set.

Permalink Reply by djordje on October 24, 2012 at 6:35pm

Hi Chris,

Do you know of any video, tutorial, book, topic which explains the components from the Sets->Sets tab (the ones you just used)?

From time to time, I see people using it, and I can see they are quite powerful. Still I did not find even one source where an explanation of each of those components is presented.
Right click->Help on them, is not enough.

Thank you for the reply.

Permalink Reply by Chris Tietjen on October 24, 2012 at 8:43pm