How to fix this error :AttributeError: 'numpy.ndarray' object has no attribute 'apply'

Question

How to use the following code in the flask framework, because when I use the following code, always get this error "AttributeError: 'numpy.ndarray' object has no attribute 'apply'"

  message = message.apply(lambda x: ' '.join([word for word in x.split() if len(word) > 4]))

Does this answer your question? AttributeError: 'numpy.ndarray' object has no attribute 'apply' — 3ddavies
– 3ddavies, Commented Oct 20, 2021 at 2:29
Looks like df was intended to be a dataframe, but ended up being a dictionary, and df['full_text'] is a numpy array. — Quang Hoang
– Quang Hoang, Commented Oct 20, 2021 at 2:39
@3ddavies No. This code is in my model, but I wanted to use this code in the flask framework, but i always get the error AttributeError: 'numpy.ndarray' object has no attribute 'apply'. Is it the flask framework cannot use the 'apply' function ? — John Chong
– John Chong, Commented Oct 20, 2021 at 2:47
@hpaulj data frame, this code was in the model, but i want to convert this code into the flask framework, the following is after convert into flask framework message = message.apply(lambda x: ' '.join([word for word in x.split() if len(word) > 4])), but i always getting error — John Chong
– John Chong, Commented Oct 20, 2021 at 2:51

Mike Holcomb · Accepted Answer · 2021-10-20 02:56:05Z

0

You are getting the error because numpy.ndarray's do not have an apply attribute (docs). Pandas DataFrames and Series objects have apply. With numpy, you can call np.apply_along_axis but I think this code probably originally expected message to be a pandas Series.

answered Oct 20, 2021 at 2:56

Mike Holcomb

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