Exemple #1
0
def mapped_reads_from_chip_ps_np(ps,mean_frag_length,cells=10000):
    G = len(ps)
    genome = np.zeros(G)
    lamb = 1.0/mean_frag_length
    for cell in (xrange(cells)):
        print cell
        config = rfd_xs_np(ps)
        config_len = len(config)
        idx = 0
        l = 0
        r = 0
        while l < G and idx < config_len:
            #print l,r,idx,config[idx]
            l,r = r,r+nprand.geometric(lamb)
            if l <= config[idx] < r:
                #print "got hit"
                genome[l:r] += 1
                while idx < config_len and config[idx] < r:
                    idx += 1
    return genome
Exemple #2
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def chip_ps_np(ps,mean_frag_length,cells=10000,verbose=False):
    """Do a chip seq experiment given the distribution ps"""
    w = 10
    G = len(ps)# + w - 1 #XXX HACK
    cell_iterator = verbose_gen(xrange(cells),modulus=1000) if verbose else xrange(cells)
    return concat(chip(G,rfd_xs_np(ps),mean_frag_length) for cell in cell_iterator)