Hi, can anyone help me to deal with this issue in Exercise 2. I have tried to fixed it a lot of time but it has still not worked. I need to pass this to get the certificate. Please please help
Hello, @ngocnguyen,
This ex 2 error is saying that some of the feature names are wrong. Since anything like misspelling, missing spaces, missing punctuation or inconsistent letter case will get you that error, I suggest you to take advantage of the second code cell, which prints the first part of the dataframe, and then copy and paste the names from there to the exercise.
Besides, read the “Extra hints” above the exercise cells which tells you some names should be avoided. There should only be 6 names in your answer.
After that, run all the cells from top to bottom in sequence, check that there is no error, and then make sure the notebook is saved with your most recent change, and then you might resubmit it.
Cheers,
Raymond
I even have tried this code to get the correct variable names, and then I copied each by each, or retype by myself, tried a lot of ways, but it still grade 0/10. Please have a look
{edited by mentor - sharing solution is not allowed here}
What are the two features that the extra hints asked us to avoid? Please take a look as it has also explained why.
The extra hints section is right above the exercise cell:
When I delete “Cylinders” as hints, the grading show that “Missing some features” So what is the point
{edited by mentor, as sharing solution is not allowed here}
Hello @ngocnguyen,
You have the list of features, from which you may remove the two that should be avoided as hinted, and then you could remove the others that are not numerical, and that should leave you 6 features at the end. I just did that myself and I got 6 features. The error said you were missing some features, did you get 6?
It is your assignment and all I can do is to give you some suggestions based on the error you share with us. The error said you were missing some features, and thus I would ask you to review your choices of feature. At the end, because it is your assignment, you would need to find the answer yourself and, if there is any problem, find the way to solve them yourself.
Besides, next time, please only share the full error message for our discussion and do not share your solution here as it is not allowed here, so I have removed it for you from your last two posts.
Good luck, @ngocnguyen 
Raymond
Solved it, thank you so much for your support. It really helpful
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Good morning, how are you? I’m having trouble with the same part. The error I’m getting is: The object required for grading cannot be found in your code. I don’t want to violate the code of ethics, but the order of my columns is: Es, Cty, Hiy, Comb, Comb(), CO2