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Use Matlab
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- What does the code below do? clearvec = randi(20,1,100)-10;iter=0;k=1;while k<= length(vec) if vec(k)<0 vec(k)= vec(k) * -1; end k = k+1;end a. This code generates a vector with 20 random integer elements between 1 and 100, and changes the sign of all negative elements. b. This code generates a vector with 20 random integer elements between -100 and 100, and replaces all the negative integers with a positive integer of the same absolute value. c. This code generates a vector with 100 random integer elements between -10 and 10, and changes the sign of all negative elements. d. This code generates a vector with 100 random integer elements between 20 and 100, and changes the sign of the elements coverting all poivitive ones to negative and all negative ones to positive. e. This code generates a vector with 20 random integer elements between 1 and 100, and changes the sign of all the elements.Using Rstudio, Create a list that contains a numeric vector from (1 to 30, 34, 45, 47, and 50 to 70), a character vector that repeat the elements A, B, and C 30 times, and a 2 x 3 matrix that contains a number from 101 to 106 filled by rows.Choose : Find the log of each of the 3 elements in a row vector ? 1-v=[ log2 log5 log6] 2-v=log[2 5 6] 3-v=[2 5 6];>> log(v)
- This is in R. The comments are my answers, "height" is a vector of numbers: [1] 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 #Describe (using comments) what the following commands do.height[-1] #This adds one value to all of the elements in the height vector.height[-c(3,9)]height[c(TRUE, FALSE)]height[height>61] # This only returns the values which are greater than 61.women["weight"] #This comment returns the weight data of the women database.Which of the following data structures store values in contiguous memory? Check all that apply . Vector Linked List Dynamic Array Map ArrayWrite a for loop to print all NUM_VALS elements of vector courseGrades, following each with a space (including the last). Print forwards, then backwards. End with newline. Ex: If courseGrades = {7, 9, 11, 10}, print:7 9 11 10 10 11 9 7 Hint: Use two for loops. Second loop starts with i = courseGrades.size() - 1 (Notes)Note: These activities may test code with different test values. This activity will perform two tests, both with a 4-element vector (vector<int> courseGrades(4)). See "How to Use zyBooks".Also note: If the submitted code has errors, 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>#include <vector>using namespace std; int main() { const int NUM_VALS = 4; vector<int> courseGrades(NUM_VALS); int i; for (i = 0; i < courseGrades.size(); ++i) { cin >> courseGrades.at(i); }…
- Add each element in origList with the corresponding value in offsetAmount. Print each sum followed by a space. Ex: If origList = {40, 50, 60, 70} and offsetAmount = {5, 7, 3, 0}, print: 45 57 63 70 #include <iostream>#include <vector>using namespace std; int main() {const int NUM_VALS = 4;vector<int> origList(NUM_VALS);vector<int> offsetAmount(NUM_VALS);unsigned int i; for (i = 0; i < origList.size(); ++i) {cin >> origList.at(i);} for (i = 0; i < offsetAmount.size(); ++i) {cin >> offsetAmount.at(i);} cout << endl; return 0;} Please help me with this problem using c++.JAVA Write an application containing three parallel arrays that hold 10 elements each. The first array hold four-digit student ID numbers, the second array holds first names, and the third array holds the students’ grade point averages. Use dialog boxes to accept a student ID number and display the student’s first name and grade point average. If a match is not found, display an error message that includes the invalid ID number and allow the user to search for a new ID number.Parameters array - Any JavaScript Array size - A positive integer Number indicating the desired "chunk" size. Return Value A new Array of Arrays. Each sub-Array has a length equal to size. Remaining elements are gathered into a final sub-Array. Do not mutate the input array Do not use Array.prototype.slice in your implementation.Do not use Array.prototype.shift in your implementation.Do not use Array.prototype.pop in your implementation.Do not use Array.prototype.splice in your implementation. Please fix this JavaScript function so that the when calling the function with the parameters chunk([false, true, false, true], 3); the output is [[false, true, false], [true]] (subarrays)and when the parameters are chunk([undefined, null, 0, false, NaN, ""], 3); the output is [[undefined, null, 0], [false, NaN, ""]] thank you very much! function chunk(ar, sz) { var res = []; var ind = 0; // itterating through the new length of resulting array for (var i = 0; i < ar.length / sz; i++)…
- Write Xojo Code to create the array Planets and Assign values. Planets: Venus Earth Mars Jupiter Saturn Uranus NeptuneComplete the following function that counts the even numbers in a 2D vector of integers. int count_evens(const std::vector<std::vector<int>>& v) { // Add your code... } Please add output screenshot!Pick the code that will add a new property z to the first array element. let points = [{ x: 10, y: 20 },{ x: 15, y: 21 },{ x: 20, y: 22 },{ x: 25, y: 23 },]; Select one of the following: points[0].z = 30; points{1}['z'] = 30; points.z = 30; points[1].z = 30;