Пример #1
0
def pairwiser_massboost_one_row(row, Dc, ra_rad, dec_rad, tzav, Tmapsc,
                                bin_edges, mass, dTw, w2, sum_mass, Npairs):
    '''
    inputs:
    row: what row to compute
    Dc: distances
    ra_rad: ra
    dec_rad: dec
    tzav: averaged T vs z
    Tmapsc: Tdisc-Tring
    bin_edges: bin edges in Mpc (for n bins, we need n+1)
    mass: mass in linear scale

    outputs:
    dTw: accumulated sum dT * c_ij * M_ij
    w2: accumulated sum c_ij**2 * M_ij**2
    sum_mass: sum M_ij
    Npairs: counter'''
    many = len(ra_rad)
    i = row
    for j in range(i + 1, many):
        ang_ij = angle_jit_rad(dec_rad[i], ra_rad[i], dec_rad[j], ra_rad[j])
        vecdiff_ij = vecdiff_jit(Dc[i], Dc[j], ang_ij)
        if (vecdiff_ij > bin_edges[0]) and (vecdiff_ij < bin_edges[-1]):
            binval_ij = inWhatBinIsIt(vecdiff_ij, bin_edges)
            dT_ij = (Tmapsc[i] - tzav[i]) - (Tmapsc[j] - tzav[j])
            cij = (Dc[i] - Dc[j]) * (1.0 + mt.cos(ang_ij)) / (2.0 * vecdiff_ij)
            Mij = (mass[i] + mass[j]) / 2.
            dTw[binval_ij] += dT_ij * cij * Mij
            w2[binval_ij] += cij**2. * Mij**2
            sum_mass[binval_ij] += Mij
            Npairs[binval_ij] += 1
Пример #2
0
def do_the_jitted_pairwise(ra_rad, dec_rad, Dc, dT_ksz,
                           row, bin_edges,
                           vecdiff_ij_s, cij_s, dTw_s, w2_s, i_s, j_s,
                           bin_number_s):
    '''Will do the pairwise calculation fast.
    returns n_stored which is the length of the vector that survived the
    r_max cut
    Results are stored in vecdiff_ij_s, cij_s, dTw_s, and w2_s.'''
    i = row
    N_gal = len(ra_rad)
    n_stored = 0
    for j in range(row+1, N_gal):
        ang_ij = pairwiser.angle_jit_rad(dec_rad[i], ra_rad[i],
                                         dec_rad[j], ra_rad[j])
        vecdiff_ij = pairwiser.vecdiff_jit(Dc[i], Dc[j], ang_ij)
        if (vecdiff_ij > bin_edges[0]) and (vecdiff_ij < bin_edges[-1]):
            binval_ij = inWhatBinIsIt(vecdiff_ij, bin_edges)
            cij = (Dc[i]-Dc[j])*(1.0 + mt.cos(ang_ij)) / (2*vecdiff_ij)
            dT_ij = dT_ksz[i]-dT_ksz[j]
            dTw = dT_ij * cij
            w2 = cij**2
            #store result
            vecdiff_ij_s[n_stored] = vecdiff_ij
            cij_s[n_stored] = cij
            dTw_s[n_stored] = dTw
            w2_s[n_stored] = w2
            i_s[n_stored] = row
            j_s[n_stored] = j
            bin_number_s[n_stored] = binval_ij
            n_stored += 1
    return n_stored
Пример #3
0
def cross_pairwiser_one_row_uneven_bins(row, Dc, ra_rad, dec_rad, tzav1, tzav2,
                                        dT1, dT2, bin_edges, dTw, w2):
    '''Idem to pairwise_one_row_uneven_bins from pairwiser.py'''
    many = len(ra_rad)
    i = row
    for j in range(i + 1, many):
        ang_ij = angle_jit_rad(dec_rad[i], ra_rad[i], dec_rad[j], ra_rad[j])
        vecdiff_ij = vecdiff_jit(Dc[i], Dc[j], ang_ij)
        #  check if separation within bin space
        if (vecdiff_ij > bin_edges[0]) and (vecdiff_ij < bin_edges[-1]):
            binval_ij = inWhatBinIsIt(vecdiff_ij, bin_edges)
            dT_ij = (dT1[i] - tzav1[i]) - (dT2[j] - tzav2[j])
            cij = (Dc[i] - Dc[j]) * (1.0 + mt.cos(ang_ij)) / (2.0 * vecdiff_ij)
            dTw[binval_ij] += dT_ij * cij
            w2[binval_ij] += cij**2.0
Пример #4
0
def pairwise_Nit_uneven_bins(Nit, Dc, ra_rad, dec_rad, tzav, Tmapsc, bin_edges,
                             dTw, w2):
    N_gal = len(Dc)
    rand_ij = np.zeros(2, dtype=np.int64)
    for it in xrange(Nit):
        gen_random_pair(N_gal, rand_ij)
        i, j = rand_ij[0], rand_ij[1]
        ang_ij = angle_jit_rad(dec_rad[i], ra_rad[i], dec_rad[j], ra_rad[j])
        vecdiff_ij = vecdiff_jit(Dc[i], Dc[j], ang_ij)
        #  Check if this separation is within the bin space
        if (vecdiff_ij > bin_edges[0]) and (vecdiff_ij < bin_edges[-1]):
            binval_ij = inWhatBinIsIt(vecdiff_ij, bin_edges)
            #  Now compute and store
            dT_ij = (Tmapsc[i] - tzav[i]) - (Tmapsc[j] - tzav[j])
            cij = (Dc[i] - Dc[j]) * (1.0 + mt.cos(ang_ij)) / (2.0 * vecdiff_ij)
            dTw[binval_ij] += dT_ij * cij
            w2[binval_ij] += cij**2.