Filter out duplicate numbers in a list?

Is there an easy way to filter out duplicate numbers in a list?

So there is "1,1,0,2,4,4,4,3,4,2,0" and output would be only "0,1,2,3,4".

What would be even better is if there is a way to also remove duplicate objects in a list, or objects with the same geometry, is that possible?

Much appreciated.

Theunis

Replies to This Discussion

Permalink Reply by Filip Loguin on March 27, 2012 at 12:13pm

I know this tread is inactive but i thought i might share something of the topic. This script in addition to gh components splits a list of points(or anything else) to a list of twins(identical objects) and a list of remaining objects. It has no limit to the amount of identical objects and the index is remained. This may contain flaws, but hopefully it could be of use.

Private Sub RunScript(ByVal points As List(Of Object), ByVal y As Object, ByRef A As Object)
    Dim twins As New List(Of Integer)
    For i As Integer = 0 To points.Count - 1
      For b As Integer = i + 1 To points.Count - 1
        If points(i) = points(b)Then
          twins.Add(i)
          twins.Add(b)
          'Im not sure this is a good way to go but it worked for me
        End If
      Next
    Next
    A = twins
End Sub

/filip

Attachments:

remove_duplicate_twins.gh, 6 KB

Permalink Reply by taz on March 27, 2012 at 2:35pm

Permalink Reply by Max Malein on November 13, 2012 at 7:59am

Awesome!

Permalink Reply by Valentin on November 1, 2014 at 11:00am

This component cant remove same floating numbers when you not use sort list component.

Permalink Reply by Tejas Chavan on September 27, 2017 at 10:07am

There is one very quick way for numbers..feed the numbers into x-input of 'construct point component'; then 'cull duplicate points'; then 'deconstruct point' and get back the numbers from x-output, without any duplicates