MONGODB M101P HOMEWORK 5.1 ANSWERS

In this assignment you will use the aggregation framework to find the most frequent author of comments on your blog. In this assignment you will use the aggregation framework to find the most frequent author of comments on your blog Download the handout and mongoimport. Choose the answer below. Please round the answer to a whole number. You need to group twice to solve this problem.

We will be using a data set similar to ones we’ve used before. The documents look like this: Check all that apply. For example, to extract the first character from the city field, you could write this pipeline:. If you notice that while importing, there are a few duplicates fear not, this is expected and will not affect your answer. You must figure out the GPA that each student has achieved in a class and then average those numbers to get a class average. After that, you just need to sort.

Once you’ve generated your aggregation query and found your answer, select it from the choices below.

Study IQ World: Week 5 : AGGREGATION FRAMEWORK : MP: MongoDB for Developers

For this problem, we have used a subset of the data you previously used in zips. Try for your kongodb. Different states might have the same city name. Prefered Cities to Live!

mongodb m101p homework 5.1 answers

Your task is to calculate the class with the best average student performance. Using the aggregation framework, calculate the sum total of people who are living in a zip code where the city starts with one of those possible first characters.

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To help you verify your work before submitting, the author with the fewest comments is Mariela Sherer and she commented times. We will take these are the prefered cities to live in chosen by this instructor, given is special affection to this set of characters!

To be clear, each student’s average includes only exams and homework grades. Friday, 8 September Week 5: You will need to probably change your projection to send more info through than just that first character. Some students have three homework assignments, etc. You must figure out the GPA that each student has achieved in a class and then average those numbers to get a class average.

mongodb m101p homework 5.1 answers

The answer for CT and NJ using this data set is You need to group twice to solve this problem. Choose the answer below. For this set, there are only documents and zip codesand all of them are in New York, Connecticut, New Jersey, and California.

Mongodb M101J Homework 1 1 Answers

If you notice that while importing, there are a few duplicates fear not, this is expected and will not affect your answer. After that, you just need to sort. Please choose your answer below for the most prolific comment author:.

Now use the aggregation framework to calculate the author with the greatest number of comments. Start by downloading the handout zip file for this problem. In this assignment you will use the aggregation framework to find the most frequent author of comments on your blog.

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You will be using the zip code collection data set, which you will find in the ‘handouts’ link in this page.

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Don’t include their quiz scores in the calculation. For example, to extract the first character from the city field, you could write this pipeline:. A city might have multiple zip codes. Import it into your mongod using the following command from the command line:.

Download the handout and mongoimport. Please round the answer to a whole number. Crunching the Zipcode dataset Please calculate the average population of cities in California abbreviation CA and New Mm101p NY taken together with populations over 25, Note that not all students in the same class have the same exact number of assessments. Please use the Aggregation pipeline to solve this problem.

mongodb m101p homework 5.1 answers

This involves calculating an average for each student in each class of all non-quiz assessments xnswers then averaging those numbers to get a class average. Also, you will need a filtering step to get rid of all documents where the city does not start with the select set of initial characters.

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