def make_new_coincidence(self, uNodeState, uFirstCoinc=False):
"""Make a new coincidence and updates the size of the node's internal matrices."""
input_msg = uNodeState['input_msg']
if uFirstCoinc:
coincidences = np.array([compute_widx(input_msg)], dtype=np.uint16)
k = 0
seen = np.array([1])
TAM = np.array([[0]], dtype=np.uint16)
else:
coincidences = uNodeState['coincidences']
TAM = uNodeState['TAM']
seen = uNodeState['seen']
(rows, cols) = coincidences.shape
new_coincidences = np.zeros((rows + 1, cols), dtype=np.uint16)
new_coincidences[:rows,:cols] = coincidences
new_coincidences[rows,:] = compute_widx(input_msg)
coincidences = new_coincidences
(k, _) = coincidences.shape
k -= 1
(cols,) = seen.shape
new_seen = np.zeros(cols + 1)
new_seen[:cols] = seen
seen = new_seen
## resize TAM
TAM = utils.inc_rows_cols(TAM)
## update the node's state
uNodeState['coincidences'] = coincidences
uNodeState['seen'] = seen
uNodeState['TAM'] = TAM
return k
