Question

Need help with this homework, and follow the bolded text required

7.10 LAB: Data Visualization

(1) Write a function, get_data_headers(), to prompt the user for a title, and column headers for a table. Return a list of three strings, and print the title, and column headers. (2 pt)

Ex:

Enter a title for the data:

Number of Novels Authored

You entered: Number of Novels Authored

Ex:

Enter the column 1 header:

Author name

You entered: Author name

Enter the column 2 header:

Number of novels

You entered: Number of novels

(2) Write a function, get_data_points(), that prompts the user for data points, and returns a dictionary where the keys are the string component of the data points, and the values are the integer component of the data points.

Data points must be in this format: string, int. Store the information before the comma into a string variable and the information after the comma into an integer. The user will enter -1 when they have finished entering data points. Output the data points on each iteration. (4 pts)

Ex:

Enter a data point (-1 to stop input):

Jane Austen, 6

Data string: Jane Austen

Data integer: 6

(3) Improve the get_data_points() function by performing error checking for the data point entries. If any of the following errors occurs, output the appropriate error message and prompt again for a valid data point.

• If entry has no comma
• Output: Error: No comma in string. (1 pt)
• If entry has more than one comma
• Output: Error: Too many commas in input. (1 pt)
• If entry after the comma is not an integer
• Output: Error: Comma not followed by an integer. (2 pts)

Ex:

Enter a data point (-1 to stop input):

Ernest Hemingway 9

Error: No comma in string.

Enter a data point (-1 to stop input):

Ernest, Hemingway, 9

Error: Too many commas in input.

Enter a data point (-1 to stop input):

Ernest Hemingway, nine

Error: Comma not followed by an integer.

Enter a data point (-1 to stop input):

Ernest Hemingway, 9

Data string: Ernest Hemingway

Data integer: 9

(4) Write a function, print_data(), that takes the table header information list created in (1) and the dictionary created in (3). The function will output the information in a formatted table. The title is right justified with a minimum field width value of 33. Column 1 has a minimum field width value of 20. Column 2 has a minimum field width value of 23. (3 pts)

Ex:

        Number of Novels Authored

Author name         |       Number of novels

--------------------------------------------

Jane Austen |                      6

Charles Dickens |                     20

Ernest Hemingway |                      9

Jack Kerouac    |                     22

F. Scott Fitzgerald |                      8

Mary Shelley |                      7

Charlotte Bronte |                      5

Mark Twain |                    11

Agatha Christie |                     73

Ian Flemming |                     14

J.K. Rowling    |                     14

Stephen King |                     54

Oscar Wilde |                      1

(6) Write a function, print_histogram(), to output the data point information formatted as a histogram. Each name is right justified with a minimum field width value of 20. (4 pts)

Ex:

         Jane Austen ******

     Charles Dickens ********************

    Ernest Hemingway *********

        Jack Kerouac **********************

F. Scott Fitzgerald ********

        Mary Shelley *******

    Charlotte Bronte *****

          Mark Twain ***********

     Agatha Christie *************************************************************************

        Ian Flemming **************

        J.K. Rowling **************

        Stephen King ******************************************************

         Oscar Wilde *

The main format should be restrict it as the following:

if __name__ == '__main__':

    # Below 4 lines are required for basic test cases. Do not delete them.

    headers = get_data_headers()

    data = get_data_points()

    print_data(headers, data)

    print_histogram(data)

Answer 1

thanks for the question, here is the complete code in python

========================================================================================

def get_data_headers():
    title =input('Enter a title for the data:')
    print('You entered: {}'.format(title))
    headerOne=input('\nEnter the column 1 header: ')
    print('You entered: {}'.format(headerOne))
    headerTwo=input('\nEnter the column 2 header: ')
    print('You entered: {}'.format(headerTwo))
    return [title,headerOne,headerTwo]

def get_data_points():
    data_point_dict={}
    while True:
        data=input('Enter a data point (-1 to stop input): ')
        if data =='-1':
            break
        elif ',' not in data:
          print('Error: No comma in string.\n')
        elif data.count(',')>1:
            print('Error: Too many commas in input.\n')
        else:
            data=data.split(',')
            try:
                data_point_dict[data[0].strip()] = int(data[1])
                print('Data string: {}'.format(data[0]))
                print('Data integer: {}'.format(data[1]))

            except:
                print('Error: Comma not followed by an integer.\n')
    return data_point_dict


def print_data(header,data_points):
    print('{0:^50}'.format(header[0]))
    print('{0:<24}{1:^1}{2:>25}'.format(header[1],'|',header[2]))
    print('='*50)
    for key,value in data_points.items():
        print('{0:<24}{1:^1}{2:>25}'.format(key,'|',value))

def print_histogram(data_points):
    print('\n\n')
    for key,value in data_points.items():
        print('{0:<24} {1}'.format(key,'*'*value))

def main():
    headers=get_data_headers()
    data_points=get_data_points()
    print_data(headers,data_points)
    print_histogram(data_points)

main()

========================================================================================

def get data headers: title =input ('Enter a tit le for the data: ') print ('You entered: ). format (title)) heade rone=input('\nEnter the column 1 header : ') print ('You entered: .format (headerOne)) headerTwo-input (\nEnter the column 2 header ') print('You entered: .format (headerTwo)) return [title,headerOne, headerTwo] Snipping To New Select a snip typ or click the New def get data points ): data point dict-f while True: data-input ('Enter a data point -1 to stop input) 7) if data T-1: break elif ', not in data: print('Error No comma in string. \n') elif data.count(, *)>1: print ('Error Too many commas in input.\n') else: data-data.split(',') data_point_dict [data[0].strip)] - int (data[1]) print ('Data string: .format (data[0])) print ('Data integer: .format (data[1])) except: print('Error Comma not followed by an integern) return data point dict def print_data (header, data_points): print('50) .format (header[0])) print ( ' { 0 : <24 } { 1: ^! } { 2 : >25 } , . format (header [ 1j, Ί-header [2] ) ) print (50) for key, value in data_points.items ) print ('0: <24)1:1)12:>25) ". format (key, I ', value)) def print histogram (data points): print ( \n\n' ) for key, value in data_points.items ) print ('0: 24) (1)'.format (key, **value) )

def print_data (header, data_points): print (0: 50) .format (header [0])) print(0: <24 1:1 12:>25) .format (header[1],I , header [2])) print (50) for key, value in data_points.items ): print (0: <24) 1: 1) I2:>25) '.format (key, 'I ', value)) def print_histogram (data points) print ( '\n\n') for key, value in data_points.items ): print (0: <24) 1).format (key, **value)) def main): headers-get_data headers ) data_points-get_data_points () print_data (headers, data points) print histogram (data_points) main)

thanks !

Answer 2

Can u give it in java??

Answer 3

import java.util.Scanner;
import java.util.ArrayList;
import java.util.List;

public class DataVisualizer {
   
   public static void main(String[] args) {
      
      Scanner scnr = new Scanner(System.in);
      ArrayList<String> authorName = new ArrayList<String>();
      ArrayList<String> numBooks = new ArrayList<String>();
      
      String title;
      String col1;
      String col2;
      String dataPoints;
      int commaLocation;
      String author;
      String numNovels;
      int bookStars;
      
      System.out.println("Enter a title for the data:");
      title = scnr.nextLine();
      System.out.println("You entered: " + title);
      System.out.println();
      
      System.out.println("Enter the column 1 header:");
      col1 = scnr.nextLine();
      System.out.println("You entered: "+ col1);
      System.out.println();
      
      System.out.println("Enter the column 2 header:");
      col2 = scnr.nextLine();
      System.out.println("You entered: " + col2);
      System.out.println();
      
      do {
         
         System.out.println("Enter a data point (-1 to stop input):");
         dataPoints = scnr.nextLine();
         
         if (dataPoints.equals("-1")) {
            
            break;
            
         }
         
         else if (!dataPoints.contains(",")) {
            
            System.out.println("Error: No comma in string.");
            System.out.println();
            continue;
            
         }
         
         else if (!dataPoints.matches(".*\\d.*")) {
            
            System.out.println("Error: Comma not followed by an integer.");
            System.out.println();
            continue;
            
         }
         
         else if (dataPoints.contains(",")) {
            
            int count = 0;
            int location;
            
            for (int m = 0; m < dataPoints.length(); m++) {
               
               if(dataPoints.charAt(m) == ',') {
                  
                  count++;
                  
               }
               
            }
            
            if (count > 1) {
               
               System.out.println("Error: Too many commas in input.");
               System.out.println();
               continue;
               
            }
            
            else if (count == 1) {
               
               commaLocation = dataPoints.indexOf(',');
               author = dataPoints.substring(0, commaLocation);
               numNovels = dataPoints.substring(commaLocation + 1, dataPoints.length());
               
               author = author.trim().replaceAll(" +", " ");
               numNovels = numNovels.trim().replaceAll(" +", " ");
               
               System.out.println("Data string: " + author);
               System.out.println("Data integer: " + numNovels);
               System.out.println();
               
               authorName.add(author);
               numBooks.add(numNovels);
               
               continue;
               
            }
            
         }
         
         else {
            
            commaLocation = dataPoints.indexOf(',');
            author = dataPoints.substring(0, commaLocation);
            numNovels = dataPoints.substring(commaLocation + 1, dataPoints.length());
            
            author = author.trim().replaceAll(" +", " ");
            numNovels = numNovels.trim().replaceAll(" +", " ");
            
            System.out.println("Data string: " + author);
            System.out.println("Data integer: " + numNovels);
            System.out.println();
            
            authorName.add(author);
            numBooks.add(numNovels);
            
         }
         
      } while (!dataPoints.equals("-1"));
      
      System.out.println();
      System.out.printf("%33s\n", title);
      System.out.printf("%-20s|%23s\n", col1, col2);
      System.out.println("--------------------------------------------");
      
      for (int i = 0; i < authorName.size(); i++) {
         
         System.out.printf("%-20s|%23s\n", authorName.get(i), numBooks.get(i));
         
      }
      
      System.out.println();
      
      for (int j = 0; j < authorName.size(); j++) {
         
         System.out.printf("%20s ", authorName.get(j));
         
         bookStars = Integer.parseInt(numBooks.get(j));

         for (int k = 0; k < bookStars; k++) {
            
            System.out.print("*");
            
         }
         
         System.out.println();
         
      }
      
   }
   
}

Answer 4

Thank you so much.

Answer 5

Can you do it in c++ please?