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Remove blank lines-->fix cookbook rendering issue #23144

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Remove blank lines-->fix cookbook rendering issue #23144

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6 changes: 0 additions & 6 deletions doc/source/cookbook.rst
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Original file line number Diff line number Diff line change
Expand Up @@ -1234,25 +1234,19 @@ The `method` argument within `DataFrame.corr` can accept a callable in addition
n = len(x)
a = np.zeros(shape=(n, n))
b = np.zeros(shape=(n, n))

for i in range(n):
for j in range(i + 1, n):
a[i, j] = abs(x[i] - x[j])
b[i, j] = abs(y[i] - y[j])

a += a.T
b += b.T

a_bar = np.vstack([np.nanmean(a, axis=0)] * n)
b_bar = np.vstack([np.nanmean(b, axis=0)] * n)

A = a - a_bar - a_bar.T + np.full(shape=(n, n), fill_value=a_bar.mean())
B = b - b_bar - b_bar.T + np.full(shape=(n, n), fill_value=b_bar.mean())

cov_ab = np.sqrt(np.nansum(A * B)) / n
std_a = np.sqrt(np.sqrt(np.nansum(A**2)) / n)
std_b = np.sqrt(np.sqrt(np.nansum(B**2)) / n)

return cov_ab / std_a / std_b

df = pd.DataFrame(np.random.normal(size=(100, 3)))
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