Dear Bernie,
Yes, you are correct that there are other repeats in this string.
Thanks in advance,
Luciano

On 15 abr, 09:49, "Bernie Deitrick" deitbe @ consumer dot org wrote:
OK for for palindromes, but the string that you posted

AABBAABB

has the repeats

AA
AAB
AABB
AB
ABB
BB

not just AA and BB...

If that is what you actually want, then I will modify the code to do so.

HTH,
Bernie
MS Excel MVP

"Luciano Paulino da Silva" wrote in ...

OK!
It is the following:
My first problem that was related to palindromes detection your
suggestion was absolutely perfect.
Now, my second problem is relate to detect repeats (sequences of
letters or numbers which are repeating at least twice within a string)
in the same sequences. Of course that some repeats are also
palindromes. But in this case the listing and counting must be only of
repeats consisting of two or more letters. For example, the string
that you listed bellow has only one repeat (AA) that should be listed
in this case. It appears 2 times in the string.
Didi you understand?
Thanks in advance,
Luciano

On 14 abr, 23:34, "Bernie Deitrick" deitbe @ consumer dot org wrote:
Luciano,

I'm not clear on what you want - only those that appear more than once?
What do you want with the ABBA and the AABBAA and the BAAB, all of which
only appear once?

Bernie

"Luciano Paulino da Silva" wrote in
...
Bernie,
It is possible that I have not explained very well. At this moment,
I`m needing a code that detect the repeats for a givem string instead
to detect palindromes. For example, the string AABBAABB has two
repeats (AA and BB), and they appear 2 times.
Do you understand it now?
Thanks in advance,
Luciano

On 14 abr, 21:16, "Bernie Deitrick" deitbe @ consumer dot org wrote:

Luciano,

Change the code to that given below to include the count of the number of
repeats, then select A2:B??? before entering =PALINDROMES(A1) using
Ctrl-Shift-Enter.

HTH,
Bernie
MS Excel MVP

Function Palindromes(strBig As String) As Variant
Dim FoundPals() As String
Dim PalCount As Integer
Dim i As Integer
Dim j As Integer
Dim k As Integer
Dim PalExists As Boolean

PalCount = 1
ReDim FoundPals(1 To 2, 1 To 2)
For i = 1 To Len(strBig) - 1
For j = 2 To Len(strBig) - i + 1
If isPal(Mid(strBig, i, j)) Then
If PalCount = 1 Then
FoundPals(1, 2) = Mid(strBig, i, j)
FoundPals(2, 2) = 1
PalCount = 2
Else
PalExists = False
For k = 2 To UBound(FoundPals, 2)
If FoundPals(1, k) = Mid(strBig, i, j) Then
PalExists = True
FoundPals(2, k) = FoundPals(2, k) + 1
End If
Next k
If Not PalExists Then
ReDim Preserve FoundPals(1 To 2, 1 To PalCount + 1)
FoundPals(1, PalCount + 1) = Mid(strBig, i, j)
FoundPals(2, PalCount + 1) = 1
PalCount = PalCount + 1
End If
End If
End If
Next j
Next i

FoundPals(1, 1) = "Palindromes found:"
FoundPals(2, 1) = PalCount - 1
Palindromes = Application.Transpose(FoundPals)

End Function
Function isPal(strPal As String) As Boolean
Dim i As Integer
Dim strTemp As String
isPal = False
For i = Len(strPal) To 1 Step -1
strTemp = strTemp & Mid(strPal, i, 1)
Next i
isPal = (strPal = strTemp)
End Function

"Luciano Paulino da Silva" wrote in
...
Bernie,
Yes, it is working fine. Thank you very much.
During some situations it is very slow, but I understand that there
are a lot of possibilities to test.
Do you know how some code could be used to check about repeats using
the same strategy?
Thanks in advance,
Luciano