Question 7 Using your knn classifier, predict the class labels for the test set x_test. This function should return a numpy array with shape (143,) and values either 0.0 or 1.0. ]:def answer_seven(): # YOUR CODE HERE raise NotImplementedError()

Question 7 Using your knn classifier, predict the class labels for the test set x_test. This function should return a numpy array with shape (143,) and values either 0.0 or 1.0. ]:def answer_seven(): # YOUR CODE HERE raise NotImplementedError()

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Python Please Recap of two-dimensional arrays and their numpy implementation ** uploaded image ^ 1) In this problem, implement a TwoDArray class that is meant to mimic (some of) the functionality of a two-dimensional numpy array. DO NOT use numpy at any point. 1A) Give the class an __init__ method Make sure that the variable array is a valid input. This means you should a) Make sure that array is a list of lists. and b) Make sure that each of the inner lists has the same length. You do not need to check for anything else. If these conditions are not met you should raise the appropriate error(s). It is up for you to decide if you should raise a TypeError, KeyError, IndexError, ValueError, ZeroDivisionError, etc. When raising the error, you should also give an informative error message. With actual numpy arrays, all numbers are required to be the same datatype. You don't have to worry about that here. You can also assume that all numbers are ints or floats so you only have to worry…
Write code for PersonManagement class. This class contains the array of Person class (code is given below) and also following methods: set: This method receives the array of person class and set the attribute. displayAll: This method will display values of all persons. sort: This method will sort the array according to age values of the persons with ascending order using Selection Sort. reverse: This method will reverse the order of the array. getPersons: This method will return the array of the persons (attribute). displayEvenAgePerson: This method will display all those persons values who have even age. displayOddAgePerson: This method will display all those persons values who have odd age. displayPrimeAgePerson: This method will display only those persons values who have prime number age. Following is the class of Person: public class Person { private String Name; public int age; public void set(String Name, int age) { this.Name =…
Create an array of objects of the Person class, of size 4. Create three objects of the Person class, with values, and assign the objects to the array. Loop through the array and print the name, job, and email of all Personobjects.
use c++ Programming language Write a program that creates a two dimensional array initialized with test data. Use any data type you wish . The program should have following functions: .getAverage: This function should accept a two dimensional array as its argument and return the average of each row (each student have their average) and each column (class test average) all the values in the array. .getRowTotal: This function should accept a two dimensional array as its first argument and an integer as its second argument. The second argument should be the subscript of a row in the array. The function should return the total of the values in the specified row. .getColumnTotal: This function should accept a two dimensional array as its first argument and an integer as its second argument. The second argument should be the subscript of a column in the array. The function should return the total of the values in the specified column. .getHighestInRow: This function should accept a two…
In C# Use a one-dimensional array to solve the following problem. Write a class called ScoreFinder. This class receives a single dimensional integer array representing passer ratings for NFL players as an argument for its constructor. The test class will provides this argument. The test class then calls upon a method from the ScoreFinder class to start the process of finding a specific rating, which will be provided by the user. The method will iterate through the array and find any matching values. For all the matches that are found, the method will note the index of the cell along with its value. At completion, the method will print a list of all the indices and the associated scores along with a count of all the matching values.
Task 4. Utility classes Implement a Menu-Driven program of ArrayList class using the above scenario and perform the following operations. a. Create an object of ArrayList class based on the scenario with explanations of the method used. b. Create a method that will allow inserting an element to ArrayList Class based on the scenario. The input field must be validated as necessary. C. Create a method to delete specific elements in the ArrayList with explanations of the method used.
When a sentence is entered, write the most relevant C code in that sentence. You should not write the following 3 rules without changing them. void maxinChar(char sentence[], size: in the given string and at most in the picture string) it is underdrawn. Within this function keep its escapes defense of a character in an array. By parameterizing this array to the findMinIndex and findMaxIndex functions, the set value is returned for the minimum and transition elements in this array. In the sentence given according to the returned values, you talk less and mostly about yourself. int findIndex[] is the smallest element in a given array of integers. The array int findx(Index] overnights inside the largest element in an array of integers given you. -------- Meaning: Enter a sentence: Hello world, welcome to the java programming lesson Max Character: o Minimum Character: j
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Python Please Recap of two-dimensional arrays and their numpy implementation ** uploaded image ^ 1) In this problem, implement a TwoDArray class that is meant to mimic (some of) the functionality of a two-dimensional numpy array. DO NOT use numpy at any point. 1A) Give the class an __init__ method Make sure that the variable array is a valid input. This means you should a) Make sure that array is a list of lists. and b) Make sure that each of the inner lists has the same length. You do not need to check for anything else. If these conditions are not met you should raise the appropriate error(s). It is up for you to decide if you should raise a TypeError, KeyError, IndexError, ValueError, ZeroDivisionError, etc. When raising the error, you should also give an informative error message. With actual numpy arrays, all numbers are required to be the same datatype. You don't have to worry about that here. You can also assume that all numbers are ints or floats so you only have to worry…