def group_sums_dummy(x, group_dummy):
    if data_util._is_using_ndarray_type(group_dummy, None):
        return np.dot(x.T, group_dummy)
    else:  # check for sparse
        return x.T * group_dummy
Given a username, fetches the profile page and parses it.
dataset/ETHPy150Open statsmodels/statsmodels/statsmodels/tools/grouputils.py/group_sums_dummy--crossover with--dataset/ETHPy150Open everett-wetchler/okcupid/FetchProfiles.py/pull_profile_and_essays