Unable to allocate 29.0 MiB for an array with shape (3, 1267618) and data type float64

Question

from sklearn.naive_bayes import MultinomialNB 
nb = MultinomialNB(alpha = 10) 
nb.fit(X_train_dtm, y_train)

It shows memory error while running this code.

Answer 1

So, a MemoryError will occur when Python can't get a block of memory from the operating system. It seems unusual to be unable to allocate 29MB unless you're running this on a tiny computer.

One fix would be to use the partial_fit method over chunks of the data.