Hello Learners,
from public_tests import *
TypeError Traceback (most recent call last)
~/work/public_tests.py in test_cofi_cost_func(target)
TypeError: ‘numpy.float64’ object is not callable
How Should I do?
TMosh
November 27, 2022, 5:20am
2
Did you restart the kernel and then run all of the cells in the notebook starting from the first cell?
I did it. but same result
TypeError Traceback (most recent call last)
~/work/public_tests.py in test_cofi_cost_func(target)
TypeError: ‘numpy.float64’ object is not callable
I used lambed. Is it a proble?
rmwkwok
November 27, 2022, 10:03am
5
Makoto_Onodera:
----> 3 test_cofi_cost_func(cofi_cost_func(X_r,W_r,b_r,Y_r,R_r,lambda_=0.15))
Hello @Makoto_Onodera ,
It seems that you have changed code that is not supposed to be changed. Please keep to the original version.
Raymond
PS: The original version passes a function to test_cofi_cost_func. Your version passes a number to it.
This is not solved. There is an error.#Public tests
AssertionError Traceback (most recent call last)#Public tests
~/work/public_tests.py in test_cofi_cost_func(target)
AssertionError: Wrong value. Expected 27, got 270.0. Check the regularization term
rmwkwok
November 27, 2022, 8:10pm
7
The original problem is gone and this is a new problem.
This new problem says that your function does not compute the answer correctly. Therefore something is wrong in your code. If you can’t figure out what’s wrong by reading your own code, then I suggest you to check out the test itself.
In your function, insert these lines right after the line ### START CODE HERE ###:
print('X is', X)
print('W is', W)
print('b is', b)
print('Y is', Y)
print('R is', R)
print('lambda_ is', lambda_)
Then run the test again to check out what inputs are supplied before the error is triggered. With the printed inputs, go to the equation to verify yourself it is indeed 27, and then, without running the test again, go through your code step-by-step by replacing variables with those inputs, do the computation yourself, and find out which line does not work as expected.
When writing a program, you are just asking the computer to do the calculation for you, but in principle, all the calculation can be done by you. So if you don’t instruct Python correctly, you can check the maths yourself to find out where the instruction is wrong.
Good luck,
from public_tests import *
print(‘X is’, X)
print(‘W is’, W)
print(‘b is’, b)
print(‘Y is’, Y)
print(‘R is’, R)
print(‘lambda_’, lambda_)
test_cofi_cost_func(cofi_cost_func)
Result
rmwkwok
November 28, 2022, 10:34am
9
Hello please move the printing code to inside your cofi_cost_func, right after ### START CODE HERE ###, and then run the test?
Please hlep me
from public_tests import *
TypeError Traceback (most recent call last)
~/work/public_tests.py in test_cofi_cost_func(target)
TypeError: ‘NoneType’ object is not callable
from public_tests import *
NameError Traceback (most recent call last)
NameError: name ‘lambda_’ is not defined
I do not know Why Y and R are 0??
rmwkwok
November 28, 2022, 11:17am
13
First, change
Public tests
from public_tests import *
print(‘X is’, X)
print(‘W is’, W)
print(‘b is’, b)
print(‘Y is’, Y)
print(‘R is’, R)
print(‘lambda_’, lambda_)
test_cofi_cost_func(cofi_cost_func)
to
Public tests
from public_tests import *
test_cofi_cost_func(cofi_cost_func)
≈=================================
Then go to your exercise code, find ### START CODE HERE ###. Please let me know if you can find it.
File “”, line 22
File “”, line 22
I have no idea why it doesn’t work for me.
Is this no proble？Correct？#Public tests
Could you please give me some more specific advice?
rmwkwok
November 28, 2022, 11:57am
21
Please add only
print('X is', X)
print('W is', W)
print('b is', b)
print('Y is', Y)
print('R is', R)
print('lambda_', lambda_)
after the line ### START CODE HERE ###
There is no need to add the following.
from public_tests import *
test_cofi_cost_func(cofi_cost_func)
Result
