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  1. PY0101EN Module 5 Last Review Question Correction

    Matrix multiplication in numpy is performed with A.dot(B)

    np.dot(A, B) returns the dot product

    1 vote
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  2. Thanks a ton for the tutorial DA0101EN

    I had no way of showing my gratitude for the wonderful course on your site that's why I am posting it here. I took your course DA0101EN and am immensely grateful to you.

    Thanks and Regards
    Ashish Shukla

    1 vote
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  3. There should be an option to retake the exam .

    There should be an option to retake the exam . Questions can be changed if we take the exam the second time .

    6 votes
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  4. Drop videos - Go with Comprehensive slides

    Instead of showing videos show comprehensive slides in with as many examples as possible to make the course walkthrough much quicker and easier.

    1 vote
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  5. 1 vote
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  6. I think there's a mistake in Python for Data Science course

    I think there's a mistake in Python for Data Science course in Sets /part of the second Module/ it states "...we use the ampersand to find the UNION of two sets." which IMHO is incorrect as ampersand is the sign for logical operation AND, which, applied to sets is equivalent of INTERSECTION /as it's correctly stated in the previous sentence/.

    1 vote
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  7. "access denied " while logging on hadoop sandbox via putty

    Please suggest why "access denied" while logging on for hadoop sandbox via putty

    5 votes
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  8. Retake the course

    How can i retake the course?

    Thanks

    9 votes
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  9. `from sklearn.cross_validation import train_test_split` deprecated

    `from sklearn.cross_validation import train_test_split` is deprecated,

    it should be:

    `from sklearn.model_selection import train_test_split`

    1 vote
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  10. Text Analytics 101

    Text Analytics 101 no longer available? Do we know when this will become available again? It just says coming soon.

    1 vote
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  11. Adding next or previous buttons for videos ..will be easy and quick navigation

    I suggest to think about to add "Next" and "Previous" buttons in videos , As it will be helpful in easy and quick navigation through the course.

    Thanks

    1 vote
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  12. Badge

    İ have introduction to data science certificate but it dont have data science foundation level 1.
    what do I need to do to get a badge

    1 vote
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  13. Service Graph has been deprecated and replaced by Kiali

    View guestbook telemetry data -> Service Graph
    Establish port forwarding from local port 8088 to the Service Graph instance:
    kubectl -n istio-system port-forward $(kubectl -n istio-system get pod -l app=servicegraph -o jsonpath='{.items[0].metadata.name}') 8088:8088
    error: error executing jsonpath "{.items[0].metadata.name}": array index out of bounds: index 0, length 0
    Error from server (NotFound): pods "Error executing template: array index out of bounds: index 0, length 0. Printing more information for debugging the template:" not found

    As you can see above, istio-1.1.0-rc.5 does not even have Service Graph included. Please update course material.

    1 vote
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  14. Update the training module labs with accurate content

    The labs for using DB2 Warehouse are step up for DBdash and the layout and procedure is different. The table has to be loaded and isn't the default table. I'm unable to load file and don't know the cause.

    1 vote
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  15. Hire some one with UX skills to review your CHECK/FINAL CHECK UI

    It's really not clear what CHECK & FINAL CHECK do or the impact is of pressing them or why some Qs get to be SAVED and others don't. Get some usability testing.

    Don't get me wrong, I can take a reasonable guess at their affordance but it's far from clear and unambiguous, so would benefit from a user experience professional (NOT the guy who wrote the code) running some user tests

    1 vote
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  16. Retake exam to prove you've learned from your mistakes

    Goal of exams is to test your own knowledge and understanding of an argument, so you should be able to try it again if you failed it before.
    You should be able to understand what you did wrong first time, learn from your mistakes and prove yourself you now has good knowledge of the argument.

    1 vote
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  17. Python

    Python

    1 vote
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  18. 59bbfcc704e2cad792ff79cbce52ee12

    59bbfcc704e2cad792ff79cbce52ee12

    1 vote
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  19. Make sure that user understand that need to copy paste with the dot in the end

    Hello,

    I thought the dot was not important, after 20 minutes of stackOverflow i figure it out that the dot is for indicationg the my Dockerfile is in the same directory.

    1 vote
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  20. Fix exam wrong answer in DA0101EN

    Question 20 asks what you should do if a model gives R^2 = 1 on train set and R^2 = 0 on validation data. There are 3 options, I tried to answer with 2 submissions and the obviously wrong answer (model works fine on test data so it has no issues) is the only remaining option.

    Please fix this as some people could feasibly need this one question to pass the course.

    2 votes
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