Answered: Write a Python program to return a new…

Write a Python program to return a new set with unique items from the two sets below by removing duplicates. set1 = {5, 25, 30, 40, 50}

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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1. What will be output of this Python code: import numpy as np import matplotlib.pyplot as plt x = np.array([1, 2, 3, 4, 5]) y = np.array([4, 2, 1, 3, 7]) plt.scatter(x, y); 2. What will be output of this Python code for the same data as above, from sklearn.linear_model import LinearRegression X = x[:, np.newaxis] model = LinearRegression().fit(x, y) yfit=model.predict(X) plt.scatter(x, y) plt.plot(x, yfit);
2. Write a program that will load A with 15 random numbers (range : 1-50). Display elements of A in ascending order. Then get a number X. Compare X to each element of A, if array element is less than X, replace that element with X. On another line, display elements of A after replacing all elements less than X with X.
In Java: When analyzing data sets, such as data for human heights or for human weights, a common step is to adjust the data. This can be done by normalizing to values between 0 and 1, or throwing away outliers. For this program, adjust the values by subtracting the smallest value from all the values. The input begins with an integer indicating the number of integers that follow. Assume that the list will always contain fewer than 20 integers. Ex: If the input is: 5 30 50 10 70 65 the output is: 20 40 0 60 55 The 5 indicates that there are five values in the list, namely 30, 50, 10, 70, and 65. 10 is the smallest value in the list, so is subtracted from each value in the list. For coding simplicity, follow every output value by a space, including the last one. import java.util.Scanner; public class LabProgram {public static void main(String[] args) {/* Type your code here. */
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Write a loop that sets newScores to oldScores shifted once left, with element 0 copied to the end. Ex: If oldScores = {10, 20, 30, 40}, then newScores = {20, 30, 40, 10}.Note: These activities may test code with different test values. This activity will perform two tests, both with a 4-element array (int oldScores[4]). Also note: If the submitted code tries to access an invalid array element, such as newScores[9] for a 4-element array, the test may generate strange results. Or the test may crash and report "Program end never reached", in which case the system doesn't print the test case that caused the reported message. #include <iostream>using namespace std; int main() { const int SCORES_SIZE = 4; int oldScores[SCORES_SIZE]; int newScores[SCORES_SIZE]; int i; for (i = 0; i < SCORES_SIZE; ++i) { cin >> oldScores[i]; } /* Your solution goes here */ for (i = 0; i < SCORES_SIZE; ++i) { cout << newScores[i] << " "; } cout…
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Python’s for loop allows the programmer to add or remove items in the collection over which the loop is iterating. Some designers worry that changing the structure of a collection during iteration might cause program crashes. The remedy is to make the for loop read-only, by disallowing mutations to the collection during iteration. You can detect such mutations by keeping a count of them and determining if this count goes up at any point within the collection’s __iter__ method. When this happens, you can raise an exception to prevent the computation from going forward. In the arraybag.py file complete the following in the ArrayBag class: In the __init__ method, include a new instance variable named modCount, which is set to 0. In the __iter__ method include a temporary variable named modCount, which is set initially to the value of the instance variable self.modCount. Immediately after an item is yielded within the __iter__ method, you raise an exception if the values of the two mod…
we showed you the code#for two versions of binary_search: one using recursion, one#using loops. For this problem, use the recursive one.##In this problem, we want to implement a new version of#binary_search, called binary_search_year. binary_search_year#will take in two parameters: a list of instances of Date,#and a year as an integer. It will return True if any date#in the list occurred within that year, False if not.##For example, imagine if listOfDates had three instances of#date: one for January 1st 2016, one for January 1st 2017,#and one for January 1st 2018. Then:## binary_search_year(listOfDates, 2016) -> True# binary_search_year(listOfDates, 2015) -> False##You should not assume that the list is pre-sorted, but you#should know that the sort() method works on lists of dates.##Instances of the Date class have three attributes: year,#month, and day. You can access them directly, you don't#have to use getters (e.g. myDate.month will access the#month of myDate).##You may…
1. Declare an array to hold eight integers. Use a for loop to add eight random integers, all in the range from 50 to 100, inclusive, to this array. Duplicates are okay. Next, pass the array to a method that sorts the array and returns another array containing only the largest and smallest elements in the original array. Print these two values in main. Then use a foreach loop to display all elements of the sorted array on one line separated by a single space. This latter loop should also count the odd and even numbers in the array and determine the sum of all elements in the array. SAMPLE OUTPUT The lowest element is 59 The highest element is 96 Here is the array 59 64 76 77 80 88 91 96 Evens: 5, odds: 3 Total: 631
Here is the code I am using. It is almost correct. Can you please help me figure this out please? Below is my code as well as the incorrect output: import random # Functions for generating lottery numbers, counting matches, and simulating plays def generate_lottery_numbers(): """ Generates a list of 5 random integers between 1 and 42, inclusive, with no duplicates. Returns: list: A list of lottery numbers """ return random.sample(range(1, 43), 5) def count_matches(my_list, lottery_list): """ Takes two lists of equal length representing the player’s chosen number list and the generated lottery list and returns the number of matches between my_list and lottery_list. For example, count_matches([10, 6, 20, 5, 7], [30, 6, 7, 40, 5]) will return 3, since both lists contain 5, 6, 7. Parameters: my_list (list): Your lottery numbers. lottery_list (list): A list of the winning numbers. Returns: int: The number of matching integers """ return len(set(my_list) & set(lottery_list))…
You have to make a word dictionary for NLP study. A string is given to you of length n that consists of lowercase alphabets. An array of size 26 is also given to show the numeric value for each alphabet. You should display the subsequence of a particular size whose sum of values is maximum. If multiple subsequences are available, then print the subsequence which would come earlier in any normal dictionary. Input format The first line contains an integer t representing the number of test cases. For each test case, you are given two integers n and k, a string s, and an array A of length 26. n=number of characters in string, k=the size of the desired subsequence Output format Print a string for each test case. Explanation: In the first test case, optimal way is to include 'a' character twice and 'c' character once, so that the obtained sum (5+5+3=13) is maximum. Only two subsequences ("caa" and "aca") are there with sum 13, but "aca" would come before "caa" in dictionary. In the…
The Lo Shu Magic Square is a grid with 3 rows and 3 columns shown below. The Lo Shu Magic Square has the following properties: The grid contains the numbers 1 – 9 exactly The sum of each row, each column and each diagonal all add up to the same number. This is shown below: Write a program that simulates a magic square using 3 one dimensional parallel arrays of integer type. Do not use two-dimensional array. Each one the arrays corresponds to a row of the magic square. The program asks the user to enter the values of the magic square row by row and informs the user if the grid is a magic square or not. Processing Requirements - c++ Use the following template to start your project: #include<iostream> using namespace std; // Global constants const int ROWS = 3; // The number of rows in the array const int COLS = 3; // The number of columns in the array const int MIN = 1; // The value of the smallest number const int MAX = 9; // The value of the largest number //…