def usage():
    
    """
    brief description of various flags and options for this script
    """

    print "\nHere is how you can use this script\n"
    print sys.argv[0]%"Usage: python %s"
    print "\t -K <int> (number of populations)"
    print "\t --input=<file> (/path/to/input/file)"
    print "\t --output=<file> (/path/to/output/file)"
    print "\t --tol=<float> (convergence criterion; default: 10e-6)"
    print "\t --prior={simple,logistic} (choice of prior; default: simple)"
    print "\t --cv=<int> (number of test sets for cross-validation, 0 implies no CV step; default: 0)"
    print "\t --format={bed,str} (format of input file; default: bed)"
    print "\t --full (to output all variational parameters; optional)"
    print "\t --seed=<int> (manually specify seed for random number generator; optional)"
dataset/ETHPy150Open rajanil/fastStructure/structure.py/usage/swapped operands of `%`