NameError: name 'n_neighbors' is not defined

[fngwira14]

Hallo @Francis515 ,

I was trying to run the KNN and i am receiving this error, please help out...
:::::::Code::::::::::
def knn_train_val(n_neighbors=5, train_sample_num = 2000, val_sample_num = 100, verbose=0):
# training data
x_train = np.zeros(shape=(train_sample_num, img_h * img_w * 3))
x_feature_train = np.zeros(shape=(train_sample_num, 64))
y_train = np.zeros(shape=(train_sample_num), dtype=np.uint8)
for i in range(train_sample_num):
x_feature_train[i] = (Ci.get_train_feature_Xi(i))
y_train[i] = (Ci.get_train_Yi(i))

:::::::Error Message::::::::::

NameError Traceback (most recent call last)
in
1 # classification
----> 2 knn = neighbors.KNeighborsClassifier(n_neighbors=n_neighbors)
3 knn.fit(x_feature_train, y_train)

NameError: name 'n_neighbors' is not defined

[Francis515]

Hi, I'm sorry I don't know what's wrong.
In the function knn_train_val, n_neighbors is a parameter. I don't think we need to define it.

Maybe you could change the name of that parameter and try again:
def knn_train_val( n=5, ...
...
knn = neighbors.KNeighborsClassifier(n_neighbors=n)

OR define a new variable to get the value of the parameter:
...
n = n_neighbors
knn = neighbors.KNeighborsClassifier(n_neighbors=n)