Ejemplo n.º 1
0
def example():
    ''' Create images of a situation where the size of the place cell matters. '''
    PlaceN = 500
    GridN = 1000
    C=.3
    thresh = .0075
    f_I = 5.31
    f_p = 15
    W = 1
    min_grid_size = .0004
    min_plcfld_size = .005

    grid_net = GridNetwork(GridN, min_grid_size, W,W, None)
    plc_net = PlaceNetwork(PlaceN, grid_net, wt_type='Monaco', C=C)
    acts = plc_net.activity()
    final_acts, _ = asymptotic_inhib(acts, f_I, f_p, thresh)

    mesh_pts = acts[0].shape[0]
    for i in range(PlaceN):
        flds = PlaceField.above_cutoff(final_acts[i], use_cutoff=False)
        num_flds, layout, _ = PlaceField.check_size(flds,W,W,min_plcfld_size,mesh_pts)
        no_min, _, _ = PlaceField.check_size(flds,W,W,0,mesh_pts)
        if no_min != num_flds:
            # TODO(joelshor): Make plots twin aka. side by side.
            _plot(grid_net.X[0],grid_net.Y[0],flds,'Before size check')
            _plot(grid_net.X[0],grid_net.Y[0],layout,'After size check')
            plt.show()
def example():
    ''' Create images of grid cell activity for the paper.

        Called as python MakeFig.py grid
    '''

    W = 4
    for min_grid_size in [.01,.007,.005,.003,.001,.0001]:
        grid_net = GridNetwork(1,min_grid_size,W,W)
        xx = grid_net.X[0]
        yy = grid_net.Y[0]
        act = grid_net.activity()[0]
        _plot(xx,yy,act,None)

    plt.show()
def example():
    ''' Create images of place cell output for the paper.

        Called as python MakeFig.py inhib'''
    thresh = .1
    f_I = 7
    f_p = 15
    W = 1
    C=.33

    min_grid_size = .0004
    grid_net = GridNetwork(1000,min_grid_size,W,W)
    plc_net = PlaceNetwork(500,grid_net,wt_type='Monaco updated',C=C)
    act = plc_net.activity()
    final_acts, _ = asymptotic_inhib(act,f_I,f_p,thresh)

    for i in range(5):
        _plot(grid_net.X[0],grid_net.Y[0],final_acts[i],None)
    plt.show()