Kim's 4 variables
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Input: amino acid sequences in the fasta format
Output: amino acid frequency file to be used for AA index calculation, and 3
  moving windows (peridicity) values. The order of the values in each file is as
  follows: for 19 amino acid frequencies, KNTRSIMHPLEDAGVQYCW; and for the 3 
  periodicity variables, GES crossover, Polarity crossover, and Polarity variance
  of the 1st derivative

Output file format:

[S-plus/R DA analysis format] Each line is started with the sequence ID followed
  by 19 amino acid frequencies or 3 moving window varibles. This format can be 
  used as the input file for the DA analysis with S-plus/R.

[SVM_light format] this can be used as the input file for SVM-light. The 
format is shown below. Note that the first letter '0' is not the entry name, 
but it is used to identify the type of each sequence (1 for a positive sample, 
-1 for a negative sample, or 0 for an unknown sample). In this output, 
all sequences are assigned with '0'.

0 1:value1 2:value2 3:value3 4:value4 5:value5 6:value6 7:value7 8:value8