What is the difference between using +/- versus = when setting file permissions? Is there any benefit of using instead +/- too set permissions?
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- Filename: runlength_decoder.py Starter code for data: hw4data.py Download hw4data.py Download hw4data.pyYou must provide a function named decode() that takes a list of RLE-encoded values as its single parameter, and returns a list containing the decoded values with the “runs” expanded. If we were to use Python annotations, the function signature would look similar to this:def decode(data : list) -> list: Run-length encoding (RLE) is a simple, “lossless” compression scheme in which “runs” of data. The same value in consecutive data elements are stored as a single occurrence of the data value, and a count of occurrences for the run. For example, using Python lists, the initial list: [‘P’,‘P’,‘P’,‘P’,‘P’,‘Y’,‘Y’,‘Y’,‘P’,‘G’,‘G’] would be encoded as: ['P', 5, 'Y', 3, ‘P’, 1, ‘G’, 2] So, instead of using 11 “units” of space (if we consider the space for a character/int 1 unit), we only use 8 “units”. In this small example, we don’t achieve much of a savings (and indeed the…Write a function in python named "read_words" that declares a parameter for a filename and returns a collection of unique words in the file. Even though words.txt contains a single word per line, you should not assume that this is true of every file. For example, if the line is a sentence, you should split the line into individual words before storing each word in your collection. Handle any errors that occur by printing a detailed error message. Hint: the Python set works like Java's HashSet.If fopen cannot open the file (filename mistyped, file does not exist in the current directory (folder), or we have no permission to open the file, etc) then a.We know that there is a problem because the next fprintf fails b.fopen issues a standard matlab error explaining the problem c.The file will always be created if it does not exist and fopen always opens a file. It is the responsibility of the programmer to make sure that the file is indeed what he intended d. fopen returns -1 and we know there is a problem and fix it
- def analyze_file (filename: str, pos_words: List [str], neg_words: List [str]) -> Given the name of a file, a list of positive words (all in lowercase), and a list of negative words (all in lowercase), return some interesting data about the file in a tuple, with the first item in the tuple being the positivity score of the contents of this file, and the rest of the item: being whatever else you end up analyzing. (Helper functions are highly encouraged here.) How to calculate positivity score: For every word that is pos itive in the file (based on the words in the list of positive words) add 1 to the score. For every negative word (based on the list of negative words), subtract 1 from the score. Any neutral words (those that do not appear in either list) do not affect the score in any way. passmsleep**** For this assignment, you must name your R file msleep.R (using Rstudio) For all questions you should load tidyverse. You should not need to use any other libraries. Load tidyverse with suppressPackageStartupMessages(library(tidyverse)) The actual data set is called msleep Round all float/dbl values to two decimal places. If your rounding does not work the way you expect, convert the tibble to a dataframe by using as.data.frame() 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...) Before attempting to answer these, or if you lose points upon an attempt, please review all CodeGrade information provided in the CodeGrade overview submodule - if you do not you are likely to lose points. What is the variance in total sleep for carni vores and those whose conservation status is lc? Your answer should be in a 1 X 1 data frame with a value…What is the difference between using +/- versus = when setting file permissions? Is there any benefit of using = instead of +/- too set permissions?
- Write a program in C++ game guess a number. ignore variables like i,j,k name variables correctly. If code in main is more than 7 lines then use user defined functions. Features: 1-Use file handling to allow user which you choose to enter this game. 2-Private users only enter this game via pin code. 3- 3 levels easy medium hard (easy means 8 tries,medium means 5 tries,hard means 2 tries) 4- Computer tells you guess is too low,too high or correctC++ I cannot run the code. Please help me fix it. Below is the requirement of the code. Design and write a C++ class that reads text, binary and csv files. The class functions: Size: Returns the file sizeName: Returns the file nameRaw: Returns the unparsed raw data (use vector here to get the unparsed raw data)Parse: A external function to Parse the data. The function accepts the raw data and returns the data parsed by the function. This type of function is called a "Call-Back Function". A Call-Back is necessary for each file as each file requires different regular expressions to parse. With binary files, need to use RegEx to do the parse(). [My code doesn't have this part] Please refer to the Callback.cpp example on how to setup a Call-Back. CallBack.cpp: #include <string>#include <functional>#include <iostream>#include <vector>using namespace std; string ToLower(string s){ string temp; for (char c : s)…<<Write in Java>> - Challenge 7 File encryption is the science of writing the contents of a file in a secret code. Your encryption program should work like a filter, reading the contents of one file, modifying the data into a code, and then writing the coded contents out to a second file. The second file will be a version of the first file, but written in a secret code. Although there are complex encryption techniques, you should come up with a simple one of your own. For example, you could read the first file one character at a time, and add 10 to the character code of each character before it is written to the second file. - Challenge 8 Write a program that decrypts the file produced by the program in Programming Challenge 7. The decryption program should read the contents of the coded file, restore the data to its original state, and write it to another file
- in c++: Assume that you have a text file named file1.dat contains some text written into it, write a function named vowelwords(), that reads the file file1.dat and creates a new file named file2.dat, to contain only those words from the file file1.dat which start with a lowercase vowel (i.e., with 'a', 'e', 'i', 'o', 'u').Milestone #1 - Ask Quiz Type In a file called main.py, implement a program that asks the user for a quiz type and prints the file name for that quiz type. The program should have one input prompt: the integer value of the personality quiz number. Your program should print the welcome message and the list of the personality quizzes, ask for the test number, and then print the file name. You are required to use the provided dictionary with the personality quizzes names. The list of the personality quizzes should be printed in alphabetical order. See example below. Welcome to the Personality Quiz! What type of Personality Quiz do you want to run? 1 BabyAnimals 2 Brooklyn99 3 Disney 4 Hogwarts 5 MyersBriggs 6 Sesame Street 7 - StarWars 8 - VegetablesIn c++, Using STL containers, components, and algorithms show all data from the text file movies.txt. Please make sure the list updates once the user adds a new movie to the text file. Console Movies program COMMAND MENU show - user is able to see all available movies from movies.txt command: show The Adventures of a Babysitter $10 Barney $25 Larry the Car Man $15 Dora and the missing map $15 Ceasar and the Lunch Lady $10 Suzie and the Bad Kids $13.95 command: add cout << "What movie do you want to add?"; cin >> BeeHive $12; cout << "Movie added"; command:show The Adventures of a Babysitter $10 Barney $25 Larry the Car Man $15 Dora and the missing map $15 Ceasar and the Lunch Lady $10 Suzie and the Bad Kids $13.95 Beehive $12 movies.txt with all possible movies: The Adventures of a Babysitter $10 Barney $25 Larry the Car Man $15 Dora and the missing map $15 Ceasar and the Lunch Lady $10 Suzie and the Bad Kids $13.95
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