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[MINOR] Remove unused arg in als.py #14247

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[MINOR] Remove unused arg in als.py #14247

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6 changes: 3 additions & 3 deletions examples/src/main/python/als.py
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Original file line number Diff line number Diff line change
Expand Up @@ -39,7 +39,7 @@ def rmse(R, ms, us):
return np.sqrt(np.sum(np.power(diff, 2)) / (M * U))


def update(i, vec, mat, ratings):
def update(i, mat, ratings):
uu = mat.shape[0]
ff = mat.shape[1]

Expand Down Expand Up @@ -88,15 +88,15 @@ def update(i, vec, mat, ratings):

for i in range(ITERATIONS):
ms = sc.parallelize(range(M), partitions) \
.map(lambda x: update(x, msb.value[x, :], usb.value, Rb.value)) \
.map(lambda x: update(x, usb.value, Rb.value)) \
.collect()
# collect() returns a list, so array ends up being
# a 3-d array, we take the first 2 dims for the matrix
ms = matrix(np.array(ms)[:, :, 0])
msb = sc.broadcast(ms)

us = sc.parallelize(range(U), partitions) \
.map(lambda x: update(x, usb.value[x, :], msb.value, Rb.value.T)) \
.map(lambda x: update(x, msb.value, Rb.value.T)) \
.collect()
us = matrix(np.array(us)[:, :, 0])
usb = sc.broadcast(us)
Expand Down