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- astfoodStats Assignment Description For this assignment, name your R file fastfoodStats.R For all questions you should load tidyverse, openintro, and lm.beta. You should not need to use any other libraries. suppressPackageStartupMessages(library(tidyverse)) suppressPackageStartupMessages(library(openintro)) suppressPackageStartupMessages(library(lm.beta)) The actual data set is called fastfood. Continue to use %>% for the pipe. CodeGrade does not support the new pipe. Round all float/dbl values to two decimal places. All statistics should be run with variables in the order I state E.g., "Run a regression predicting mileage from mpg, make, and type" would be: lm(mileage ~ mpg + make + type...) To access the fastfood data, run the following: fastfood <- openintro::fastfood Create a correlation matrix for the relations between calories, total_fat, sugar, and calcium for all items at Sonic, Subway, and Taco Bell, omitting missing values with na.omit(). Assign the…In this project, you should develop a library management system application using structuresand files. More specifically, your application should enable a user to read and write bookdetails to a file (books.txt). The file should store the following information for the books. Oneline per book and each field to be separated by tab.• Book ISBN• Book title• Author first name• Author surname• Year• Availability for loan [yes/no]The user of this application should have the following options in the form of a nice presentedmenu.Add a book: The user should add all the details of each book by answering a set of questions(book isbn? Book title? author? year?). The availability for loan is randomly generated by theprogram (y: yes, n:no). The book should be added at the end of the file.Search for a book: The user should be given three options here.▪ Search by the title: The user will input a keyword and the program willsearch for all the titles that contain this keyword and display all…You will be writing a scheduling application allowing a convention center to schedule events. This program will contain two different classes: Date and Event. Both classes should be defined on their own .py modules. You may use the Date class we designed in class in lecture 18 (which will also be posted on Canvas). The Event class should have the following attributes: event_date (which should be a Date object) event_name start_hour: Uses a 24-hour clock, so should be a value between 0 and 23 endHour: Uses a 24-hour clock, so should be a value between 0 and 23 The Event class should have the following methods: __str__. Return a string representation of all important info about this Event: The name of the event, the start and end times (you can simply print their value i.e. from 14 to 16) and the Date. Properties and setters for the attributes. A constructor which takes a name, start and end hours, and a Date object. Note: For sake of simplicity, each event will only take one day…
- In Chapter 11, you created the most recent version of the MarshallsRevenue program, which prompts the user for customer data for scheduled mural painting. Now, save all the entered data to a file that is closed when data entry is complete and then reopened and read in, allowing the user to view lists of customer orders for mural types.We will use the file classlist.txt. Note that it contains a list of usernames. 3. Write a script called finduser that is to be called as follows, where classlist is the name of the classlist file, and username is a particular student's username, either first name or last time. ./finduser classlist username The script should check that the correct number of arguments was received and print an error message if not, check whether the classlist file exists and print an error message if not, print the line of the given username in the classlist file If you have not been doing so all along, you should now add some comments to your script and thoroughly test it! 4. Write the script into your lab report.Computer Science Create a java application and run it . Continuing with the same VRecord class as in Q2. Program a new tester class that will use the same Record class to perform below tasks This new tester class will ask the user to enter a student ID and vaccine name and create a new Record object and add to a list, until user selects 'No" to enter more records question. The program will then ask the user to enter a Student ID and vaccine name to check if that student had a specific vaccination by using the built-in method and print the result to screen.
- You need to design this class. It’ll hold all the FoodWastageRecord objects in memory (notice the has-a relationship between the FoodWastageTracker class and FoodWastageRecord class in the diagram above). It’ll allow the user to Add a FoodWastageRecord to the list of records in memory. IT SHOULD NOT add duplicate records. Return true if the record was added successfully, else return false. Delete a FoodWastageRecord from memory. Return true if the record was actually deleted. Return false if the record to be deleted wasn’t found. [NOTE: This is an extra credit requirement.] Get all FoodWastageRecord objects from memory Generate and return the FoodWastageReport All four of these will be the member functions of your class. food_wastage_tracker.hpp class FoodWastageTracker { public: bool AddRecord(const FoodWastageRecord &record); bool DeleteRecord(const FoodWastageRecord &record); const std::vector<FoodWastageRecord> &GetRecords() const; FoodWastageReport…It should be designed as a Desktop Application (with GUI) developed with Java programming language.Note that you are not designing a Web Application or a Mobile Application.Create a project named “FavoriteBooks” which keeps a list of the books that a user has read and liked.This list is stored in a text document (.txt) file and for each book it keeps the following data separated by acomma (,):Book id, Title, Category, First Author Name and Surname, Award Winner, Rating, Year, Number of Pages, andShort Description. Book id: The data type of “Book id” is integer and will be incremented automatically by 1 whenever anew book is added to the list. Title: The data type of “Title” is String. Category: The data type of “Category” is String. It shows the category of a Book such as Arts, Biography,History, Science Fiction, Cookbook, Literature, etc.. First Author Name and Surname: The data type of “Author Name and Surname” is String. Award Winner: The data type of “Award” is String. If the…First, launch NetBeans and close any previous projects that may be open (at the top menu go to File ==> Close All Projects).Then create a new Java application called "WeightedAvgDataAnalyzer" (without the quotation marks), that modifies the DataAnalyzer.java in Horstmann Section 7.5, pp. 350-351 according to the specifications below.The input file should be called 'data.txt' and should be created according to the highlighted instructions below. Note that even though you know the name of the input file, you should not hard-code this name into your program. Instead, prompt the user for the name of the input file.The input file should contain (in order): the weight (a number greater than zero and less than or equal to 1), the number, n, of lowest numbers to drop, and the numbers to be averaged after dropping the lowest n values.You should also prompt the user for the name of the output file, and then print your results to an output file with the name that the user specified.Your…
- First, launch NetBeans and close any previous projects that may be open (at the top menu go to File ==> Close All Projects). Then create a new Java application called "WeightedAvgDataAnalyzer" (without the quotation marks), that modifies the DataAnalyzer.java in Horstmann Section 7.5, pp. 350-351 according to the specifications below. The input file should be called 'data.txt' and should be created according to the highlighted instructions below. Note that even though you know the name of the input file, you should not hard-code this name into your program. Instead, prompt the user for the name of the input file. The input file should contain (in order): the weight (a number greater than zero and less than or equal to 1), the number, n, of lowest numbers to drop, and the numbers to be averaged after dropping the lowest n values. You should also prompt the user for the name of the output file, and then print your results to an output file with the name that the user specified. Your…Step1-Study the scenario below and create a Java Program for Builders Warehouse, The program must consist of a class called Materials to handle the details of the materials. Step 2-The program should read the materials details from the material.txt file then use a LinkedList to store the material details. Step 3-Then finally the products stored in the LinkedList must be displayed like the sample code below: Step 4-There must be clear code and a screenshot of the code running.Implement the "Remove song" function. Prompt the user for the unique ID of the song to be removed.Ex: REMOVE SONG Enter song's unique ID: JJ234 "All For You" removed