The <organism>.<sex>.globalmap_k20tok54.tgz file contains 25 binary files representing uniqueness maps for each chromosome for all k=20 to 54
    (a) The files are in uint8 (unsigned 8 bit integers) binary formats
    (b) Each file is basically a vector of unsigned 8bit integers that is the length of the chromosome. The elements of the vector are >= 0
    (c) A value of 'x' at a position means that position is PERFECTLY unique in the genome for all k-mers of length >= x starting at that position on the + strand
    (d) A value of 0 at a position means that position is not unique for any of the k-mer lengths (k=20 to 54)
    (d) In order to obtain the uniqueness map for a particular k, simply perform the following operation on the vector (vector > 0) & (vector <= k)
    (d) In order to obtain the uniquness map for the - strand, you simply need to right-shift the vector by <len-1>. 
        i.e. if position 1 is UNIQUE on the + strand for <len=3> then position 3 is UNIQUE on the - strand

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How to read the files in matlab
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%First gunzip and untar the globalmap_k20tok54.tgz file
%You will see one file for each chromosome

tmp_uMap = fopen('chr1.uint8.unique','r');
uMapdata = fread(tmp_uMap,'*uint8');
fclose(tmp_uMap);

% You can similarly read the files in any other programming language as a vector of unsigned 8bit integers. Convert to doubles if you like (although this is a waste of memory) or write it out as a text file if you prefer.

Some of the directories also contain optional k<len>.tgz files (which are derived from the globalmap_* files)
Each file k<len>.tgz contains 25 binary files representing uniqueness maps for each chromosome
     (a) The files are are in uint8 binary formats
     (b) Each file is basically a vector of the length of the chromosome. The elements of the vector are in [0,1]
     (c) 1 indicates that the k-mer (5' to 3') of length <len> starting at that position on the + strand is PERFECTLY UNIQUE in the genome (both strands, all chromosomes)
     (d) In order to obtain the uniquness map for the - strand, you simply need to right-shift the vector by <len-1>.
         i.e. if position 1 is UNIQUE on the + strand for <len=3> then position 3 is UNIQUE on the - strand