Difficulty in Achieving Required Implementation about flatten

Course Q&A Deep Learning Specialization Neural Networks and Deep Learning
1

In the code homework “# Logistic Regression with a Neural Network Mindset” of Neural Networks and Deep Learning week 2.
I try to flatten ndarray like this ways

train_set_x_flatten = train_set_x_orig.reshape (-1,train_set_x_orig.shape[0])
test_set_x_flatten = test_set_x_orig.reshape(-1,test_set_x_orig.shape[0])

and the way shown by official hint implementation is

train_set_x_flatten = train_set_x_orig.reshape(train_set_x_orig.shape[0],-1).T
test_set_x_flatten = test_set_x_orig.reshape(test_set_x_orig.shape[0],-1).T

I think the implementation of my way will get same result as hint ways’ implementation , but i cannot get passed with my ways. Are there some error or miss in my implementation?
If so, please tell me.

Thanks you

2

Hi,

You should read this to understand why your implementation failed.

Best,
Saif.

3

Thank you very much!