Binary disorder

Question

Why my code for method 2 doesn't pass all test Cases? There is no different between method 1, 2, 3. Could you please explain me?
https://code.sololearn.com/c1ckvyF1NM54/?ref=app

Answer 1

Yes. You right. Correct, no need print(y_true_arr), print(y_pred_arr), y_pred_arr=y_pred_arr.reshape(2,2)
and
Y_true = y_true_arr.reshape(2,2).

I just want to show you the steps.

Answer 2

https://code.sololearn.com/WDNS0qb76NBS/?ref=app

Answer 3

Interesting, Bob Li. First look at the problem carefuly: there are 3 lines. 1st line or row n,p . n and p represent dimension of matrice, 2,2 or 3,3 in test Cases. 2nd row is a sequence of Binary input combination for list y_true, and 3rd lines is a sequence of Binary input combination for list y_pred. Both y_true and y_pred have equal length, it can be 4, 5,6,7,..n Binary digit delimited by space.
So, when we are going to iterate through all list elements (1D list) we simply count from 0-th to (len(y_true)-1)-th element in the list.

Answer 4

Bob Li. Yes, you right.

Answer 5

I can't find anything called binary disorder on here, care to share the assignment?

Answer 6

Data Science, part classification.

Answer 7

Not seeing "data science," maybe an app vs website issue? (I'm on app)

Answer 8

Confusion matrix.
Maybe you're printing too many things?
Your solution is so long

Answer 9

@Oliver Pasaribu
you are assuming the inputs are only len 4.
The question only said both inputs are of the same length. if it was longer or shorter than 4, reshape(2,2) would not work. Your code will throw an error at this point. also, you don't need to reshape your data at this point.

Answer 10

you are overcomplicating it😁

Answer 11

PAUL SANDEEP VAIBHAV
he is taking the time to understand what's happening in the code. Which is a good thing.
Oliver Pasaribu
Understanding the basics is good, as long as you advance from that and not try to code everything from basic principle.

Answer 12

Oliver Pasaribu
I mean there are more advanced Python libraries and methods you can and should learn about.

Think of solving a problem this way:

You have a problem.

In your current way, you create functions and procedures to solve it using basic np.methods. You are able to solve it, but only after great effort and trial and error.

But if you read up and learn other libraries, you might be able to solve the problem in 1 or 2 lines of code. You are doing more with less effort.

Did you look at the code using scikit I posted in the comment under your code? The problem can be solved in a code contained inside the print function.

It is like having advanced weapons instead of sticks and stones.

Would you rather work harder or work smarter?

Answer 13

Yup

Answer 14

??? Sololearn course Data Science. Please look at CAREFULY.

Answer 15

listen man it definitely 100% doesn't exist in my app, but if you'd really rather just keep repeating yourself than c/p the instructions--which you should be doing anyway when asking for help--I'll gladly stop wasting my time

Answer 16

Orin Cook you don't have Python for Data Science? It's an old course and it's also in my app. Try clicking the link.

https://www.sololearn.com/Course/data-science/?ref=app

Answer 17

I don't know. But you can get it from other sololearn members. You can see what course they have taken. Maybe some course are not available, but you can follow them by open the course that you are interested to learn.

Answer 18

There might be anything buried in community lessons somewhere, given how disorganized and unsearchable that mess is, but not in the main courses no.

If it's an old course, it might've been replaced in a recent purge, and only visible if you had already started it before.

Answer 19

Oliver Pasaribu
I just used

from sklearn.metrics import confusion_matrix

and did a flip and transpose.

Answer 20

@Bob_Li : yes confusing matrix, can be imported from sklearn. But I try to perform manual calculation to populate each possible combination of y_true (actual) and y_pred(predicting). Since the dimension of confusing matrix is 2x2, or think it if we reshape to single Row 4 columns matrice, then it Will be a 4 possible combinations of 00, 01, 10, 11. But be CAREFUL when chose the position index when populate or accumulate.