diff options
Diffstat (limited to 'pyspike/directionality/cython/cython_directionality.pyx')
| -rw-r--r-- | pyspike/directionality/cython/cython_directionality.pyx | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/pyspike/directionality/cython/cython_directionality.pyx b/pyspike/directionality/cython/cython_directionality.pyx index f5ea752..00e3b86 100644 --- a/pyspike/directionality/cython/cython_directionality.pyx +++ b/pyspike/directionality/cython/cython_directionality.pyx @@ -130,6 +130,52 @@ def spike_delay_asymmetry_profile_cython(double[:] spikes1, double[:] spikes2, ############################################################ +# spike_delay_dual_profile_cython +############################################################ +def spike_delay_dual_profile_cython(double[:] spikes1, + double[:] spikes2, + double t_start, double t_end, + double max_tau): + + cdef int N1 = len(spikes1) + cdef int N2 = len(spikes2) + cdef int i = -1 + cdef int j = -1 + cdef double[:] a1 = np.zeros(N1) # asymmetry values + cdef double[:] a2 = np.zeros(N2) # asymmetry values + cdef double interval = t_end - t_start + cdef double tau + while i + j < N1 + N2 - 2: + if (i < N1-1) and (j == N2-1 or spikes1[i+1] < spikes2[j+1]): + i += 1 + tau = get_tau(spikes1, spikes2, i, j, interval, max_tau) + if j > -1 and spikes1[i]-spikes2[j] < tau: + # coincidence between the current spike and the previous spike + # spike from spike train 1 after spike train 2 + # leading spike gets +1, following spike -1 + a1[i] = -1 + a2[j] = +1 + elif (j < N2-1) and (i == N1-1 or spikes1[i+1] > spikes2[j+1]): + j += 1 + tau = get_tau(spikes1, spikes2, i, j, interval, max_tau) + if i > -1 and spikes2[j]-spikes1[i] < tau: + # coincidence between the current spike and the previous spike + # spike from spike train 1 before spike train 2 + # leading spike gets +1, following spike -1 + a1[i] = +1 + a2[j] = -1 + else: # spikes1[i+1] = spikes2[j+1] + # advance in both spike trains + j += 1 + i += 1 + # equal spike times: zero asymmetry value + a1[i] = 0 + a2[j] = 0 + + return a1, a2 + + +############################################################ # spike_delay_asymmetry_cython ############################################################ def spike_delay_asymmetry_cython(double[:] spikes1, double[:] spikes2, |