[WSG21] Daily study group: multiparadigm data science

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A new study group for Multiparadigm Data Science with the Wolfram Language begins Monday, Apr 19, 2021!

Making progress in an online course can be daunting when you have to study all alone. Join a cohort of fellow Wolfram Language users for a two-week study group that works through the Wolfram U course “Multiparadigm Data Science”. A certified instructor will guide each session by reviewing the lesson notebooks from the course, working through the code and answering questions.

Get support for starting on the path to earning Level 1 and Level 2 certifications in multiparadigm data science.

Sign up here: Webinar: Daily Study Group: Multiparadigm Data Science by Wolfram Research

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Clicking the Download Notebook link did not result in a download for the sessions {Explore, Analyze, Handling different types of data, restructuring Data}.

Is there something else required to get the downloads?

Thank-you.

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It seems like a hit and miss affair, sometimes it downloads , sometimes it does not, even when I tried a number of browsers . I think that is why we are getting a separate link in today’s lecture so we can download all the files in one go .

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Yes, we will share a link to download all the notebooks at once, in the study group session today.
We’ll also look into the issue of the “Download Notebook” links not working as expected.
Thanks.

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Thanks for the downloads.

I see the the 1st workflow notebooks were left out (“1. Build a Project Workflow”). It seems that the last three notebooks of that section have a non-working download link at the bottom of each notebook because I’ve tried three different browsers with the same result. I cannot download them, though I can probably reconstruct them via copy, paste, and execute.

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No problem. We can add the “Build a Project Workflow” notebooks to the same download location.

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Abrita, I can not find the “Exercises” in The MPDS notebook. I really appreciate it if you would help.

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You will find the “Exercises” tab on the top right corner of the page for each lesson. E.g. https://www.wolfram.com/wolfram-u/multiparadigm-data-science/handling-different-types-of-data.html

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This is in reply to a question posed at today’s study group session about listing wars from a particular period. I have used the "MilitaryConflict" entity type to create a FilteredEntityClass that satisfies a specific condition for its EntityProperties “StartDate” and “EndDate” with the help of an EntityFunction.

EntityFunction[x, body] behaves exactly like an EntityProperty and can be used to create very specific properties that help us denote a list of very specific entities

EntityList[
 FilteredEntityClass["MilitaryConflict", 
  EntityFunction[c, 
   c["StartDate"] >= DateObject[{1975, 1, 1, 0, 0, 0}] && 
    c["EndDate"] <= DateObject[{2000, 12, 31, 0, 0, 0}]]]]
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Exercise 2.3.1 / 2.3.3 / 2.3.4
I get exactly the same solution as the expected solution. The solution check answers always with “Try again”. What i am doing wrong?

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Hi,
Please check my registration, because I do not receive your emails, and the Q&A display shows my surname first, followed by my first name. Perhaps I made a mistake during the registration process?

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Hi Abrita

Firstly the notebook files would not download for me ( I am using windows 10 and a range of browsers ( Chrome , Mozilla and Edge ) . I suspect it is becasue the website wants to open a window and the Browser / Virus software will not allow it .

Now attempting the exercises and its is just not happening. The small window on the right will not show all the info, and if you enter info, it will not display correctly. ( I do get the right answer eventually) .

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Quiz 1 - Problem 9

You are asking for a specific number regarding the “dimensions of the output returned by DimensionReduce”. I think this is in contradiction to the Documentation Center where you can read
“DimensionReduce[examples] automatically chooses an appropriate dimension for the approximating manifold.”
So, the requested number for the quiz problem can be right, but must not be correct in general, right?

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I agree, to edit the excercises is a nightmare. I lost the button to check the solutions for all sections.

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Jürgen are you using Windows or Mac ?

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Once you go to a new subsection of the course, the Exercise-File is copied into your private Wolfram Cloud. It is much easier to work with the copy. You can work with the files either on the cloud or locally.

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Windows 10

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Once you go to a new subsection of the course, the Exercise-File is copied into your private Wolfram Cloud. It is much easier to work with the copy. You can work with the files either on the cloud or locally.

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Thanks , running the exercises in the cloud now

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Hello,
Let me try to address a number of questions here.

  1. Quizzes: We are addressing some issues we found with the quiz. @JuergenKanz The issue with Quiz 1 Problem 9 will be resolved in the fix we are deploying.
  2. Autograder not accepting solutions to exercise problems: We will discuss this in more details during Friday’s session. @UlfSchmidt and @DougBeveridge We are also in the process of setting up a way for you to download the exercise notebooks, work on them on your desktop and submit for manual grading (especially when the autograder does not accept your solution). There are so many different ways to implement a solution in the Wolfram Language… although we have set up the autograder to accept multiple solutions, we do run into issues sometimes.
  3. “Download notebook” links: We are looking into the issue of the “Download notebook” not working. @DougBeveridge For now please download the zipped notebooks from the link shared during the webinar sessions.

Thank you for your patience as we try to resolve the issues. We appreciate your interest and participation in the study group sessions.