NumPy 배열의 요소 발생 횟수를 계산하는 방법은 무엇입니까?

<code class="python">import numpy

# Create a NumPy array
y = np.array([0, 0, 0, 1, 0, 1, 1, 0, 0, 0, 0, 1])

# Obtain unique values and their counts
unique, counts = numpy.unique(y, return_counts=True)

# Convert the results to a dictionary for ease of access
results = dict(zip(unique, counts))

print(results)  # Output: {0: 7, 1: 4}</code>

<code class="python">import collections

# Use the Counter class to tally the occurrences of each element
counter = collections.Counter(y)

# Print the Counter object to view the occurrences
print(counter)  # Output: Counter({0: 7, 1: 4})</code>