the generalized topological entropy

input: a string of DNA sequence, and k (the substring for the DNA sequence)

output: the topological entropy for the specific DNA sequence

topological entropy

input: a string of DNA sequence, and k (the length of substring for the DNA sequence)

output: the topological entropy for the specific DNA sequence

converted the DNA sequence to numberial sequence

input: DNA sequences file(the fasta file), length (the sliding windows' length), k (the substring of DNA sequence)

output: the topological entropy matrix for the specific DNA sequence