Delete Unique Values in a list

Hi All

I am trying to delete all the unique values in the list to just be left with pairs as so.

A 1

B 2

C 2 B 2

D 4 B 2

E 5 E 5

F 5 E 5

G 6

ANY IDEAS

thanks

luke

Replies to This Discussion

Permalink Reply by Michael Pryor on September 8, 2012 at 10:40am

hope it helps

Permalink Reply by Luke Harrison on September 9, 2012 at 6:44am

I cant get it to work

could you please explain the working

Permalink Reply by Michael Pryor on September 9, 2012 at 9:16am

can you attach the file?

Permalink Reply by Vicente Soler on September 9, 2012 at 11:13am

If you are using double precision floating point numbers you can't rely on the equals component. You'll have to use an expression component with the following formula: abs(x-y) < 0.01

Permalink Reply by David Rutten on September 9, 2012 at 12:42pm

Actually you can rely on numbers not changing. What you should not do is compute two numbers via different algorithms and expect them to match up to the last digit. But if you don't perform any operations on floats then you can use Equals.

Of course in this case the 'duplicates' in the list might not be actual duplicates, they may already have some binary noise in them, in which case Vicente's warning ought to be heeded.

David Rutten

david@mcneel.com

Poprad, Slovakia

Permalink Reply by Michael Pryor on September 9, 2012 at 1:11pm

So since it is going directly to equals what would be the issue? the key sorting?

Permalink Reply by Vicente Soler on September 9, 2012 at 1:20pm

The problem is how the numbers are generated in the first place, that part is cut out of the screenshot.

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