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How do I generate a character state matrix?

I am using Biopython for writing some codes for generating a character based matrix (for amino acids).

I have a protein alignment file and I want to use it to create a matrix using a character based method so that a phylogenetic tree can be generated from it.

My question is I don't know how to generate a character based matrix?? I somehow understand the logics for a distance based matrix but I am unable to understand the methodologies for using amino acids as characters for generating matrix. I want to write the codes for it and don't want to use any tools for this analysis.

python phylogenetic matrix

Why don't you want to use tools, and reinvent the wheel? Is this a home work assignment?

Yes , this is my assignment . I have to write codes doing this myself and my problem is that I am not getting the logic how to consider the amino acids as characters and generating a matrix.

I have a aligned protein sequence file and I want to generate a character based matrix and calculate maximum likelihood for the data. The problem is that I am not getting the way how do I do it?

Hello mdsiddra!

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PS: Please do not post duplicate questions that appear to contain very similar questions.

The question you have mentioned is different from my concern. I want to understand how do I consider the amino acids as character sites and produce a matrix so that a phylogenetic tree can further be constructed from those values.

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