On 14 abr, 12:47, Luciano Paulino da Silva
wrote:
Dear all,
I am looking to detect palindromes (sentence or number or other
sequence of units that can be read the same way in either direction)
and repeats (sequences of letters or numbers which are repeating at
least twice within a string) in some strings containing between
20-5000 letters. Has somebody any idea how could I perform that using
an Excel macro? I would like that the string to be evaluated could be
on cell "A1" and that the detected palindromes and repeats could be
listed bellow A2 and C2, respectively; and that the number of times
that they appear in the sentence could be listed bellow cells B2 and
D2, respectively, as the following small example:

QGAGGAAGGAGQ
Palindromes * * Number * * * * *Repeats * * * * Number
QGAGGAAGGAGQ * *1 * * * * * * * GA * * * * * * *3
GAG * * * * * * 2 * * * * * * * AG * * * * * * *3
GG * * * * * * *2 * * * * * * * GAG * * * * * * 2
AA * * * * * * *1 * * * * * * * AA * * * * * * *1
* * * * * * * * * * * * * * * * GG * * * * * * *2

Somebody could help me?
Thanks in advance,
Luciano

Correction:
QGAGGAAGGAGQ
Palindromes Number Repeats Number
QGAGGAAGGAGQ 1 GA 3
GGAAGG 1 GG 2
GAAG 1 AG 3
GAG 2 GAG 2
GG 2
AA 1