Use the following input DataFrame:import pandas as pdrng np.random. RandomState (6)df = pd. DataFrame (rng.randint (20, size=12).reshape (4, 3), columns-list('xyz'))• Print df and switch the columns 'x' and 'z'• Create a generic function to switch any two columns in df as specified in the function arguments• Print df with the columns sorted in the reversed alphabetical order; i.e. column 'z' is the first column, followed by column 'y' and 'x'[3]: ## Put your codes/comments and explain the results in this cell

Answered: Use the following input DataFrame:…

Computer Networking: A Top-Down Approach (7th Edition)

7th Edition

ISBN:9780133594140

Author:James Kurose, Keith Ross

Publisher:James Kurose, Keith Ross

Chapter1: Computer Networks And The Internet

Section: Chapter Questions

Problem R1RQ: What is the difference between a host and an end system? List several different types of end...

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Implement the build_dictionary() function to build a word frequency dictionary from a list of words. Ex: If the words list is: ["hey", "hi", "Mark", "hi", "mark"] the dictionary returned from calling build_dictionary(words) is: {'hey': 1, 'hi': 2, 'Mark': 1, 'mark': 1} Ex: If the words list is: ["zyBooks", "now", "zyBooks", "later", "zyBooks", "forever"] the dictionary returned from calling build_dictionary(words) is: {'zyBooks': 3, 'now': 1, 'later': 1, 'forever': 1} The main code builds the word list from an input string, calls build_dictionary() to build the dictionary, and displays the dictionary sorted by key value. Ex: If the input is: hey hi Mark hi mark the output is: Mark: 1 hey: 1 hi: 2 mark: 1
I need help Implement this python function. Please help me
Write a template function that takes as parameter a vector of a generic type and reverses the order of elements in the vector, and then add the function to the program you wrote for Programming Challenge 5. Modify the driver program to test the new function by reversing and outputting vectors whose element types are char, int, double, and string.
Consider the following function:int enigma(NodeInt32* node){if(node == NULL)return 0; elsereturn 1 + enigma(node->next);} Which best describes the enigma function?A. The function performs a binary search of a list. B. The function computes the length of a list. C. The function sorts a list. D. None of the above.
Create a list – l1 with element 1,2,3,4,5. Convert this list into an array name ar. What is the dimension of this array – one dimension, 2 dimension or multidimension What is the datatype of elements of array. Print the second element of an array. Create a nested list – l2 with three lists. Elements of each lists are – [1,2,3];[4,5,6];[7,8,9] Convert this list into an array ar2. What is the dimension of this array. Observe the parenthesis. Print 8 from this array. Without using list, create an array ar3, which has the even number from 2 -10. Use the np.arange(start, end, skip). Run the following code and observe the output.
Please finish this problem in OCaml. Please implement two functions: string_explode : string -> char list string_implode : char list -> string string_explode turns a string into a list of characters and string_implode turns a list of characters back into a string. To implement these two functions, use a selection of the following higher-order functions: List.map, List.fold_right, List.fold_left and tabulate. tabulate is implemented for you in the prelude. You may also find the following functions from the OCaml string and char libraries useful: String.get : string -> int -> char returns the character at index n in string s. String.length : string -> int returns the length (number of characters) of the given string. Char.escaped : char -> string returns the string representation of the given character In order to get full marks for each question, you must use higher-order functions. Solutions using manual recursion will be capped at half marks. Please follow the…

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