FCGR

Hello, I am really struggling to come over this problem for the past 2 weeks , I would like to Read 10 or so DNA sequences from an Excel File , then calculate Frequencey CGR matrix for grid of siz 8*8 , 16*16 , 64*64 , 256 *256 and store the result in seprete Excel files , on the other hand :

seq 1- Seq 10 :

               8*8 FCGR matrix to be stored in File1.xls ;

               16*16 FCGR matrix get stored in File2.xls ;

               64*64 FCGR matrix get stored in File3.xls ;

               16*16 FCGR matrix get stored in File2.xls ;

               256*256 FCGR matrix get stored in File2.xls

I downloaded "Genomic signature using FCGR " toolbox , but failed to make use of that since it reads single fasta format sequence only and does not accepts multiple Sequences .

 even by converting my sequences into fasata format by appending '>' symbol to each sequence ,still getting error message.
I really would like to read my DNA sequences from an excel file rather than fasta format text file  , how to change the code?
also how to get the FCGR in such a manner that i explaind

Pleas help me

cheers

Answer 1

[Andrew Newell]

As far as I can tell, the details about genomic signature are irrelevant to this question. You want to write matrices to Excel files and read these matrices from the files. See xlsread and xlswrite.

[Juli]

Andrew pls read the second line of my question once more " calculate Frequencey CGR matrix" ..

[Andrew Newell]

Juliana, you seem to be asking us to do the problem for you. If you want more help, first implement the Excel read/write, then show us your code and tell us more specifically what is going wrong. It would help to provide a short example of a DNA sequence too.