A column in your data is missing a value in one row. Which command fills this missing data point with the value before it? Select an answer: df.fillna(method='bfill') df.fillna(0) df.fillna(method='linear') df.fillna(method='ffill')
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A column in your data is missing a value in one row. Which command fills this missing data point with the value before it?
Select an answer:
-
df.fillna(method='bfill')
-
df.fillna(0)
-
df.fillna(method='linear')
-
df.fillna(method='ffill')
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- What type of method is showCategory() in the following JavaScript code? function stones(stoneCount) { this.count = stoneCount; function sizeCategory() { if (stoneCount > 10) return "Big"; else return "Small";}this.showCategory = function() { console.log("Category: " sizeCategory()}; }} Question options: A parameter B public C privileged D privateC++ Given the commands below, what do they do? for (position = 1 through aList.getLength()/2) { a = aList.getEntry(aList.getLength()-position+1) aList.setEntry(aList.getEntry(aList.getLength()-position+1)) aList.setEntry(a,position) } A. randomize the entries B. sort the entries C. reverse the order of the entries D. count how many entries there arePanthera (Links to an external site.) is a family of spotted big cats found in Africa that include the Tiger, Lion, and Jaguar species. Panthera has the following qualities:In addition to the PantheraGPS attributes and methods, panthera have the following,Panthera roar()roar() method prints the string “Rrrrrrrrroooooooaaaaarrrrr!”Panthera has a weight attribute.weight is an integer attribute in pounds.Panthera’s weight is a random integer value from 10 pounds to 600 pounds. Weight is different for each panthera object.Panthera has a speed() method that tells the pantheras current speed.speed is a non-zero positive floating-point random value that changes each time it is called.Speed ranges from 0 to 50 (miles per hour)For example, the first time speed is called it may be 5.35 miles per hour (walking). The next time, it may be 47.38 miles per hour (a high-speed run). It might be 0.0 miles per hour, indicating sleeping or standing still. The value is random.Panthera is a class that…
- /*** Write the method named examScore().* * The "key" list contains the correct answers * to an exam, like ["a", "a", "b", "b"]. The "answers" * list contains a student's answers, with "?" representing * a question left blank. The two lists are not empty and * are the same length. Return the score for this list * of answers, giving +4 for each correct answer, -1 for * each incorrect answer, and +0 for each blank answer.* * Examples:* examScore(["a", "a", "b", "b"], ["a", "c", "b", "c"]) returns 6* examScore(["a", "a", "b", "b"], ["a", "a", "b", "c"]) returns 11* examScore(["a", "a", "b", "b"], ["a", "a", "b", "b"]) returns 16* * @param key a list of correct answers to an exam.* @param answers the student's answers to the exam.* @return the score as described above.*/// TODO - Write the examScore method here. /*** Write the method filterBySize().* * Given an ArrayList of String, return a new list where only * strings of the given length are retained.* * Examples:* filterBySize(["a",…Which of the following string methods is a mutator? Choice 1 of 5:.replaceChoice 2 of 5:.upperChoice 3 of 5:All of the aboveChoice 4 of 5:None of the aboveChoice 5 of 5:.stripHow do I change numCastMembers retrieved to 1 to numCastMembers retrieved to 0? Test: OK --- method getNumMinutes exists OK --- method getNumCastMembers exists OK --- method getMovieName exists OK --- method isKidFriendly exists OK --- method getCastMembers exists OK --- movieName retrieved Flick OK --- numMinutes retrieved to 0 OK --- isKidFriendly retrieved to false OK --- numCastMembers retrieved to 1 OK --- getCastMembers returns copy of the original array with the same content OK --- movieName retrieved Tape OK --- numMinutes retrieved to 10 OK --- isKidFriendly retrieved to true OK --- numCastMembers retrieved to 3 OK --- getCastMembers returns copy of the original array with the same content OK --- movieName retrieved Screening OK --- numMinutes retrieved to 120 OK --- isKidFriendly retrieved to false OK --- numCastMembers retrieved to 5 OK --- getCastMembers returns copy of the original array with the same content OK --- movieName retrieved Film OK --- numMinutes retrieved to…
- Open the Palace Solution.sln file contained in the VB2017\Chap10\Palace Solution folder. Use Windows to copy the Rectangle.vb file from the VB2017\Chap10 folder to the Palace Project folder. Then, use the Add Existing Item option on the Project menu to add the file to the project. Modify the Rectangle class to use Double variables rather than Integer variables. Change the name of the GetArea method to GetAreaSqFt. Add another method to the class. Use Get AreaSqYds as the method’s name. The method should calculate and return the area of a rectangle in square yards. The application’s Calculate button should calculate and display the number of square yards of carpeting needed to carpet a rectangular floor. Code the btnCalc_Click procedure. Display the number of yards with one decimal place. Save the solution and then start and test the application.What type of method is sizeCategory() in the following JavaScript code?function stones(stoneCount) { this.count = stoneCount; function sizeCategory() { if (stoneCount > 10) return "Big"; else return "Small"; } this.showCategory = function() { console.log("Category: " sizeCategory()}; }} a. parameter b. public c. privileged d. privateIn your IDE, copy the program BorderDemo2 After doing so, create an overload of the DisplayWithBorder() method accepting a double type variable. Modify this method so that it works exactly like the other two versions. For example, DisplayWithBorder(3.25) would output: *3.25* In your main method, add in the lines DisplayWithBorder(3.25); DisplayWithBorder(2430.49734);
- No plagarism please! Write your own answer . Upvote guarenteedWriting the following method to select a shape with Java code? SELECT [any shape number from 1..n]• Selects a shape to use with future commands MOVE, DRAW, COLOR, DELETE• n is the total number of shapes created before this command• If the shape number is i, then the i-th created shape is selected• At most one shape can be selected at a time• Calling SELECT on a shape that does not exist in the list will produce the following error message “ERROR: invalid shape for SELECT”Which of the following methods returns a value? Method changeName(String lName, String fName) lastName = lName firstName = fName Display "The name has been changed to " +firstName + " " + lastNameEnd Method Method displayInfo() Display "Account #: " + acctNumber Display "Account type: " + acctType Display "Owner name: " + lastName + ", " + firstName Display "Current balance: " + acctBalEnd Method Method withdraw(Numeric amt) acctBal = acctBal - amt Display "The new balance is: $" + acctBalEnd Method Method inquire() Return acc
