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Simple Regression
Given that the data consists of counts and range of counts is large, a natural log transformation is usually performed to ...
Simple Regression
Given that the data consists of counts and range of counts is large, a natural log transformation is usually performed to improve the linear model ...
Visitors and Travel Management Database Management SQL Script
Concept: Visitors and travel management.For this assignment, you need to submit your code (SQL script or document), includ ...
Visitors and Travel Management Database Management SQL Script
Concept: Visitors and travel management.For this assignment, you need to submit your code (SQL script or document), including structure from the Data Definition Language (DDL) and the Data Manipulation Language (DML). Use these SQL Statements as a starting point for your script.The data manipulation language (DML) is used to create, read, update, and delete data from a table. The data definition language (DDL) is used to create and alter the structure of the database itself, like creating a table, it's columns, define and modify the primary and foreign keys, stored procedures, delete columns, tables, and even the entire database. Your SQL statements should require a variety of SQL capabilities, such as various kinds of join, aggregate functions, etc. (This presupposes a good initial domain choice.)Remember you must turn in code (or documentation) of the results of these tests indicating that the SQL statements for your requirements worked correctly and that your constraints correctly allowed good data and caught bad data. Your document must include comments (handwritten or entered as SQL comments in a text file) that indicate what each test is testing - i.e. a specific requirement (if "good" data) or a specific problem you were catching (if testing a constraint on "bad" data).Follow these steps to complete your assignment:Populate your database with sample data to allow testing of the schema and the various transactions. Each table should have a minimum of ten rows.After you've entered data, create some sample queries to see if the output is what you expected.Create some sample reports to make sure these also produce similar results.Make any necessary corrections to the database design during this stage and before you enter all of your personal records. If you find any problems, correct the design. Enter all of your personal records.Write your SQL Script.Submit your code (SQL script or document), including structure from the Data Definition Language (DDL) and the Data Manipulation Language (DML).
Johns Hopkins University Data Analyst or Data Scientist Python Project
Homework1GoalThe goal of this homework assignment is to work on some real world problems that you mightencounter in a take ...
Johns Hopkins University Data Analyst or Data Scientist Python Project
Homework1GoalThe goal of this homework assignment is to work on some real world problems that you mightencounter in a take-home coding project for an interview on the job as a Data Analyst or DataScientist.Instructions● This is an individual assignment.● You can either turn in a Jupyter Notebook (.ipynb extension) or a python script (.pyextension).● Do not use Excel or any spreadsheet software.● You should be able to answer all of the questions using basic Python data structures andsyntax. Do not import any Python packages unless explicitly stated in the question. Forinstance, you are not allowed to use Pandas, Numpy, etc...● The first thing we will do when evaluating your assignment is running it end-to-end.Therefore, before submitting your assignment, we strongly recommend that you:○ make sure your code runs end-to-end without errors,○ restart the kernel and run all cells in case you are working in a Jupyter Notebook.● Please write clean code and include comments where applicable.● Clearly identify the question number you are answering.Section 1Suppose the healthcare company you work for is evaluating a potential partnership with aninsurance company. Under the proposed agreement, the insurance company would refer someof their members to the services provided by your company. As part of the evaluation, theinsurance company sent a dataset that your manager has tasked you with analyzing.The data is stored in the file `patient_visits_partnership_prospect.psv`, in pipe-delimited format.Here is a sample record:875432|2021-04-16|Brooklyn|NY|11238|A|80It contains the following fields:● patient_id: a numeric identifier● visit_date: YYYY-MM-DD format● city● state● zip_code● visit_type: the visit type, eg an annual checkup, or a follow-up visit, etc.. encoded by asingle character A, B, C, ....● charge: the amount charged for the visitFor the example record, the patient_id is 875432, the visit occurred on April 16 2021, inBrooklyn NY with zip code 11238. The visit-type was “A” and the charge incurred was $80.Disclaimer - this is a synthetic dataset that I generated although it is inspired by real data that Ihave worked with.Questions:You will need to load the file into memory and answer the following questions:1. How many rows are there in the dataset?2. How many unique patients are there?3. How many unique states are there?4. Find the minimum and maximum visit date. Note - you do not need any fancy dateparsing packages here, you should be able to answer this using basic Python syntax.5. Find the visit count per state and print them in descending order.6. Some of the patients have multiple visits. Calculate the number of patients with a singlevisit and the number of patients with multiple visits. Calculate the ratio of patients withmultiple visits to total patients.7. The majority of repeat patients had multiple visits in one city, but a small minority ofrepeat patients had multiple visits across different states. Calculate the number ofpatients that had multiple visits across different states.8. Calculate the visit counts by year-month and display the results by increasing order ofdate.9. Find the top three busiest cities. Take care to consider city and state since some citiesmight exist across multiple states.10. Find the distribution of visit-types. For instance, a hypothetical answer could be: 40% ofvisits are of type A and 60% of visits are of type B.11. Calculate the average, minimum and maximum charges per visit-type
4 pages
Discussion Question 2
Supervised and unsupervised tasks are methods associated with machine learning, which can be difficult to differentiate be ...
Discussion Question 2
Supervised and unsupervised tasks are methods associated with machine learning, which can be difficult to differentiate because both use the same ...
Python Programing Principals Cat Class Program
Assignment Description
In this assignment, you will write a Cat class so that you can create a cat object and interact wit ...
Python Programing Principals Cat Class Program
Assignment Description
In this assignment, you will write a Cat class so that you can create a cat object and interact with it.
Create class Cat. This class should have the following:
A name attribute that is intialized when a cat is created.
An energy attribute that has an initial value of 2.
A stomach capacity attribute that has an initial value of 2.
A method called play(). If the value of energy is greater than 0, it prints a message similar to "catname says meow" and then reduces the value of energy by 1. The message has to contain the name of the cat and the sound meow. However, if the value of energy is less than or equal to 0, it prints "catname is tired" instead.
A method called eat(). If the capacity of stomach is greater than 0, it prints a message similar to "catname says nom" and then reduces the capacity of stomach by 1. The message has to contain the name of the cat and the sound nom. However, if the capacity of stomach is less than or equal to 0, it prints "catname is full" instead.
In main(), you should have the following:
The program asks the user to enter a name and then creates a cat object with that name.
The program then asks how the user would like to interact with the cat by entering either 'play' or 'feed'.
Once the user enters the option, the program calls the corresponding methods from the Cat class to perform the interaction.
Once the interaction is completed, the program should ask if the user would like to continue. If the user enters 'y', the program will again ask how the user would like to interact with the cat. If the user enters 'n', the program will end. The user can enter either a capital letter or a lowercase letter.
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Most Popular Content
6 pages
Simple Regression
Given that the data consists of counts and range of counts is large, a natural log transformation is usually performed to ...
Simple Regression
Given that the data consists of counts and range of counts is large, a natural log transformation is usually performed to improve the linear model ...
Visitors and Travel Management Database Management SQL Script
Concept: Visitors and travel management.For this assignment, you need to submit your code (SQL script or document), includ ...
Visitors and Travel Management Database Management SQL Script
Concept: Visitors and travel management.For this assignment, you need to submit your code (SQL script or document), including structure from the Data Definition Language (DDL) and the Data Manipulation Language (DML). Use these SQL Statements as a starting point for your script.The data manipulation language (DML) is used to create, read, update, and delete data from a table. The data definition language (DDL) is used to create and alter the structure of the database itself, like creating a table, it's columns, define and modify the primary and foreign keys, stored procedures, delete columns, tables, and even the entire database. Your SQL statements should require a variety of SQL capabilities, such as various kinds of join, aggregate functions, etc. (This presupposes a good initial domain choice.)Remember you must turn in code (or documentation) of the results of these tests indicating that the SQL statements for your requirements worked correctly and that your constraints correctly allowed good data and caught bad data. Your document must include comments (handwritten or entered as SQL comments in a text file) that indicate what each test is testing - i.e. a specific requirement (if "good" data) or a specific problem you were catching (if testing a constraint on "bad" data).Follow these steps to complete your assignment:Populate your database with sample data to allow testing of the schema and the various transactions. Each table should have a minimum of ten rows.After you've entered data, create some sample queries to see if the output is what you expected.Create some sample reports to make sure these also produce similar results.Make any necessary corrections to the database design during this stage and before you enter all of your personal records. If you find any problems, correct the design. Enter all of your personal records.Write your SQL Script.Submit your code (SQL script or document), including structure from the Data Definition Language (DDL) and the Data Manipulation Language (DML).
Johns Hopkins University Data Analyst or Data Scientist Python Project
Homework1GoalThe goal of this homework assignment is to work on some real world problems that you mightencounter in a take ...
Johns Hopkins University Data Analyst or Data Scientist Python Project
Homework1GoalThe goal of this homework assignment is to work on some real world problems that you mightencounter in a take-home coding project for an interview on the job as a Data Analyst or DataScientist.Instructions● This is an individual assignment.● You can either turn in a Jupyter Notebook (.ipynb extension) or a python script (.pyextension).● Do not use Excel or any spreadsheet software.● You should be able to answer all of the questions using basic Python data structures andsyntax. Do not import any Python packages unless explicitly stated in the question. Forinstance, you are not allowed to use Pandas, Numpy, etc...● The first thing we will do when evaluating your assignment is running it end-to-end.Therefore, before submitting your assignment, we strongly recommend that you:○ make sure your code runs end-to-end without errors,○ restart the kernel and run all cells in case you are working in a Jupyter Notebook.● Please write clean code and include comments where applicable.● Clearly identify the question number you are answering.Section 1Suppose the healthcare company you work for is evaluating a potential partnership with aninsurance company. Under the proposed agreement, the insurance company would refer someof their members to the services provided by your company. As part of the evaluation, theinsurance company sent a dataset that your manager has tasked you with analyzing.The data is stored in the file `patient_visits_partnership_prospect.psv`, in pipe-delimited format.Here is a sample record:875432|2021-04-16|Brooklyn|NY|11238|A|80It contains the following fields:● patient_id: a numeric identifier● visit_date: YYYY-MM-DD format● city● state● zip_code● visit_type: the visit type, eg an annual checkup, or a follow-up visit, etc.. encoded by asingle character A, B, C, ....● charge: the amount charged for the visitFor the example record, the patient_id is 875432, the visit occurred on April 16 2021, inBrooklyn NY with zip code 11238. The visit-type was “A” and the charge incurred was $80.Disclaimer - this is a synthetic dataset that I generated although it is inspired by real data that Ihave worked with.Questions:You will need to load the file into memory and answer the following questions:1. How many rows are there in the dataset?2. How many unique patients are there?3. How many unique states are there?4. Find the minimum and maximum visit date. Note - you do not need any fancy dateparsing packages here, you should be able to answer this using basic Python syntax.5. Find the visit count per state and print them in descending order.6. Some of the patients have multiple visits. Calculate the number of patients with a singlevisit and the number of patients with multiple visits. Calculate the ratio of patients withmultiple visits to total patients.7. The majority of repeat patients had multiple visits in one city, but a small minority ofrepeat patients had multiple visits across different states. Calculate the number ofpatients that had multiple visits across different states.8. Calculate the visit counts by year-month and display the results by increasing order ofdate.9. Find the top three busiest cities. Take care to consider city and state since some citiesmight exist across multiple states.10. Find the distribution of visit-types. For instance, a hypothetical answer could be: 40% ofvisits are of type A and 60% of visits are of type B.11. Calculate the average, minimum and maximum charges per visit-type
4 pages
Discussion Question 2
Supervised and unsupervised tasks are methods associated with machine learning, which can be difficult to differentiate be ...
Discussion Question 2
Supervised and unsupervised tasks are methods associated with machine learning, which can be difficult to differentiate because both use the same ...
Python Programing Principals Cat Class Program
Assignment Description
In this assignment, you will write a Cat class so that you can create a cat object and interact wit ...
Python Programing Principals Cat Class Program
Assignment Description
In this assignment, you will write a Cat class so that you can create a cat object and interact with it.
Create class Cat. This class should have the following:
A name attribute that is intialized when a cat is created.
An energy attribute that has an initial value of 2.
A stomach capacity attribute that has an initial value of 2.
A method called play(). If the value of energy is greater than 0, it prints a message similar to "catname says meow" and then reduces the value of energy by 1. The message has to contain the name of the cat and the sound meow. However, if the value of energy is less than or equal to 0, it prints "catname is tired" instead.
A method called eat(). If the capacity of stomach is greater than 0, it prints a message similar to "catname says nom" and then reduces the capacity of stomach by 1. The message has to contain the name of the cat and the sound nom. However, if the capacity of stomach is less than or equal to 0, it prints "catname is full" instead.
In main(), you should have the following:
The program asks the user to enter a name and then creates a cat object with that name.
The program then asks how the user would like to interact with the cat by entering either 'play' or 'feed'.
Once the user enters the option, the program calls the corresponding methods from the Cat class to perform the interaction.
Once the interaction is completed, the program should ask if the user would like to continue. If the user enters 'y', the program will again ask how the user would like to interact with the cat. If the user enters 'n', the program will end. The user can enter either a capital letter or a lowercase letter.
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