Question

1. Writing a Random Temperature File
Write a function that writes a series of random Fahrenheit temperatures and their correspond- ing Celsius temperatures to a tab-delimited file. Use 32 to 212 as your temperature range. From the user, obtain the following:

• The number of temperatures to randomly generate.• The name of the output file.

A sample run is included below (you must follow the format provided below):

     Please enter the name of your file: Example.txt
     Please enter the number of iterations: 100

     Example.txt:
     Fahrenheit Celsius
     152.00  66.67
     97.00 36.11
     32.00 0.00
     99.00 37.22
     35.00 1.67
     etc...

2. Reading a Random Temperature File
Write a function that reads a file produced by Problem 2. Focusing only on the Celsius temperatures in the file, calculate and display to screen the following:

• Mean or Average• Minimum
• Maximum

please include eveery detail you can. plus comments. Thank you !

Answer 1

#include<iostream>

#include<cstdlib>

#include<fstream>

#include<string>

#include<iomanip>

using namespace std;

void write_to_file(string &filename, int count){

               

                ofstream outfile(filename.c_str());

                if(outfile.is_open()){

                               

                                outfile<<"Fahrenheit\tCelsius\n";

                                double fahrenheit,celsius;

                                for(int i=1; i<=count; i++){

                                               

                                                fahrenheit= 32 + rand()%181;

                                                celsius = (fahrenheit-32)/1.8;

                                                outfile<<fixed<<setprecision(2)<<fahrenheit<<"\t"<<fixed<<setprecision(2)<<celsius<<endl;

                                }

                                outfile.close();

                }else{

                                cout<<"Unable to write data to file."<<endl;

                                exit(EXIT_FAILURE);

                }

               

}

void read_from_file(string &filename, double &mean, double &min, double &max){

               

                ifstream infile(filename.c_str());

               

                int count=0;

                double fahrenheit,celsius;

                double total_celsius;

                if(infile.is_open()){

                                string header;

                                getline(infile,header,'\n');

                                while(infile>>fahrenheit>>celsius){

                                                total_celsius+=celsius;

                                                count+=1;

                                                if(count==1){

                                                                min=max=celsius;

                                                }

                                                if(min>celsius)min=celsius;

                                                if(max<celsius) max=celsius;

                                }

                                mean = total_celsius/count;

                                infile.close();

                               

                }else{

                                cout<<"Unable to write data to file."<<endl;

                                exit(EXIT_FAILURE);

                }

}

int main(){

               

               

                string filename;

                int iterations;

               

               

                cout<<"Please enter the name of your file: "; cin>>filename;

                cout<<"Please enter the number of iterations: ";cin>>iterations;

               

                write_to_file(filename,iterations);

               

               

                double mean=0, min_temp, max_temp;

                read_from_file(filename,mean,min_temp,max_temp);

                cout<<"Mean temperature : "<<mean<<" C"<<endl;

                cout<<"Min temperature : "<<fixed<<setprecision(2)<<min_temp<<" C"<<endl;

                cout<<"Max temperature : "<<fixed<<setprecision(2)<<max_temp<<" C"<<endl;

               

               

               

               

}