Import it into your mongod using the following command from the command line:. You must figure out the GPA that each student has achieved in a class and then average those numbers to get a class average. Please use the Aggregation pipeline to solve this problem. A city might have multiple zip codes. Start by downloading the handout zip file for this problem. 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.

You need to group twice to solve this problem. This involves calculating an average for each student in each class of all non-quiz assessments and then averaging those numbers to get a class average. Those students achieved a class average of Please round the answer to a whole number. Choose the answer below. Import it into your mongod using the following command from the command line:.

Prefered Cities to Live! The documents look like this: You must homeworkk out the GPA that each student has achieved in a class and then average those numbers to get a class average.

## Mongodb M101J Homework 1 1 Answers

You will be using the zip code collection data set, which you will find in the ‘handouts’ link in this page. Note that not all students in the same class have the same exact number of assessments.

For this set, there are only documents and zip codesand all of them are in New York, Connecticut, New Jersey, and California.

To be clear, each student’s average includes only exams and homework grades. 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. Please round the answer to a whole number. You need to group twice to solve this problem.

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

Friday, 8 September Week 5: In this assignment you will use the aggregation framework to find the most frequent author of comments on your blog. For this problem, assume that a city name that appears in more than one state represents two separate cities.

Crunching the Zipcode dataset Please calculate the average population of cities in California abbreviation CA and New York NY taken together with populations over 25, The answer for CT and NJ using this data set is After that, you just need to sort. Start by downloading the handout zip file for this problem.

## M101 Homework 3 1

Different states might have the same city name. Now use the aggregation framework to calculate the author with the greatest number of comments.

A city might have multiple zip codes. You will need to probably change your projection to send more info through m11 just that first character. In this assignment you will use the aggregation framework to find the most frequent author of comments on your blog Some students have three homework assignments, etc.

For example, to extract the first character from the city field, you could write this pipeline:. We will take these are the prefered cities to live in chosen by this instructor, given is special affection to this set of characters!

Download the handout and mongoimport. We will be using a data set similar to ones we’ve used before. At the end I just want to say if you want to learn mongoDB, First practice with youself.

Try for your self. Please choose your answer below for the most prolific comment author:.

This involves calculating an ohmework for each student in each class of all non-quiz assessments and then averaging those numbers to get a class average.

If you notice that while importing, there are a few duplicates fear not, this is expected and will not affect your answer.

Choose the answer below. For this problem, we have used a subset of the data you previously used in zips. Then import into your blog database as follows:. Check all that apply.