Keras model returning AttributeError: 'str' object has no attribute 'ndim'

Question

I am trying to build a simple Keras model but am getting an AttributeError for some unkown reason. All of the datatypes I am feeding to the model are float64. Code is as follows:

Defining features and target:

X = rated_df[["content_found", "domain_found","title_found", "url_found", "CPC","Competition","number_of_results","search_vol"]]

y = "Position"

Model as follows:

from keras.models import Sequential from keras.layers import Dense

model = Sequential() model.add(Dense(12, input_dim=8, activation='relu')) model.add(Dense(8, activation='relu')) model.add(Dense(1, activation='sigmoid'))

model.compile(loss='binary_crossentropy', optimizer='adam', metrics=['accuracy'])

Then the fitting of the model which causes the error:

model.fit(X, y, epochs=150, batch_size=10)

and error is

AttributeError: 'str' object has no attribute 'ndim'

A picture of the data is below and as mentioned contains all float64 datatypes:

If anyone has any advice it would be much appreciated, thanks!

That pretty much always means something is not of the type expected. check what args the various model methods are expecting and make sure you're passing the right types. — Mats Wichmann
– Mats Wichmann, Commented Dec 16, 2019 at 17:48

rafaelc · Accepted Answer · 2019-12-16 17:47:49Z

2

The problem is that you are defining y to be a string.

You likely want

y = df["Position"]

answered Dec 16, 2019 at 17:47

rafaelc

59.4k15 gold badges64 silver badges87 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

SDROB Over a year ago

Indeed, can't believe I missed something so small! Thanks!

Collectives™ on Stack Overflow

Keras model returning AttributeError: 'str' object has no attribute 'ndim'

1 Answer 1

1 Comment

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

1 Comment

Your Answer

Sign up or log in

Post as a guest

Related