C++ :: Calculations From Text Files?
Mar 31, 2014
I have a text file that contains values as follows:
2013 05 27 15 52 02.049824 231.401 0.022 49.738 2013 05 27 15 52 02.668822 229.814 0.019 49.738 2013 05 27 15 52 03.283705 228.528 2.599 49.726 2013 05 27 15 52 03.898469 230.140 2.576 49.751
Column1=date, Column2=Month, Column3=Day, Column4=Hour, Column5=Minute, Column6=Seconds, Column7=Voltage(Vrms), Column8=Current(Irms), Column9=Frequency(Hz).
I have to develop a program that will analyse these time-sampled voltage and current measurements over 24 hours and find the total energy used, mean and peak power consumption and Energy used over each hour of the 24 hour period.
How do I go about doing this? I also need to include at least one numerical integration technique. The file data contains over 50 thousand lines in the format mentioned above.
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Mar 31, 2014
I have a text file that contains values as follows:
2013 05 27 15 52 02.049824 231.401 0.022 49.738
2013 05 27 15 52 02.668822 229.814 0.019 49.738
2013 05 27 15 52 03.283705 228.528 2.599 49.726
2013 05 27 15 52 03.898469 230.140 2.576 49.751
Column1=date, Column2=Month, Column3=Day, Column4=Hour, Column5=Minute, Column6=Seconds, Column7=Voltage(Vrms), Column8=Current(Irms), Column9=Frequency(Hz).
I have to develop a program that will analyse these time-sampled voltage and current measurements over 24 hours and find the total energy used, mean and peak power consumption and Energy used over each hour of the 24 hour period.
How do I go about doing this? The file data contains over 50 thousand lines in the format mentioned above.
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Jan 16, 2014
I am writing a piece of code that requires me to display the last 1000 lines from a multiple text files (log files). FYI, I am running on Linux and using g++.
I have a log file from which - if it contains more than 1000 lines, I need to display the last 1000 lines. However, the log file could get rotated. So, in case where the current log file contains less than 1000 lines, I have to go to older log file and display the remaining. For e.g., if log got rotated and new log file contains 20 lines, I have to display the 980 lines from old log file + 20 from current log files.
What is the best way to do this? Even an outline algorithm will work.
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Jun 5, 2014
I want to make a program that opens a text file and checks the usernames listed in the text files to see if the names are registered on a site such as twitter. How easy would this be to make, what things would I need to know?
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Jun 16, 2014
I have come up with code for this, but am currently having issues finalizing it. It seems that it only puts out some of the numbers in a numerical order, but not all from both text files.
#include <iostream>
#include <fstream>
#include <cmath>
[Code]....
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May 22, 2013
So I'm trying to output 2 different text files, one has customer names and the other has items they are selling. I gave each customer an ID and each of their items has the same ID. Only problem is when I try to output it, it only outputs the first item with the same ID. I do not want to display the ID number at all, I think getline would show it so I am not using it.
here's my code
ifstream infile, infile2;
string Fname, Lname, email, item, itemPrice;
int id, itemID;
infile.open("Data.txt");
infile2.open("ItemList.txt");
[Code] .....
The first customer shirt item isn't being outputted. Maybe I'm reading the or comparing the info wrong or just not seeing it.
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Oct 6, 2014
I have been working on code for quite some time and am able to successfully read in a text document and take certain words and information that I need. The issue is that I need to read in close to 100 plus documents and was wondering how I could read in the multiple documents. I thought about creating a structure of arrays and have each text document be an element and walk through taking each document but I am not sure how this works.
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Jan 5, 2015
I'm working on a code that reads a text file and follows the instructions written in that file. An example of the text file:
*sum
11 4 61 2
1 2 0 14
17 99 1 1
*subtract
5 6 7
1 1 1
45 6 9
I want to read the text file line by line, each time I find an instruction (that is, the keywords *sum or *subtract) I want to make a summation (in the case of *sum) of all the numbers in each of the following lines, and repeat until the next instruction appear. So the text file above should generate:
78
17
118
-8
-1
30
That is:
11 + 4 + 61 + 2 = 78
1 + 2 + 0 + 14 = 17
17 + 99 + 1 + 1 = 118
5 - 6 - 7 = -8
1 - 1 - 1 = -1
45 - 6 - 9 = 30
how can I implement a dictionary(I'm guessing a dictionary is the best way to go here) so that when I read the string *sum i can call a function that does the summation of the following lines.
the size of the text file may be big (several mb) and the number of different instructions to search for may be in the magnitude of hundreds.
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Dec 4, 2014
I'm new to C++ and involving encoding and decoding text from text files. When I enter a file in the program just stalls.
#include <iostream >
#include <iomanip>
#include <string>
#include <cstring>
#include <fstream>
using namespace std;
char getmenuselection (char m);
{Code] .....
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Jan 28, 2015
i am trying to doing my project what is: Diff - The program should compare two text files and list the differences, i.e. lines and columns of the beginning and the end of a given difference.
i dont know how to start or what to do with this.
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Feb 9, 2014
Writ a program to implement hashing of text files in a directory to find files with the same content?
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Jul 9, 2013
I want to make a program that can know the current time and create a new .txt file.For example if its Monday to day then when its Tuesday it crates a new txt file called Tuesday.I really don't know how to go about this.I know i will need to use the time.h library.
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Jun 23, 2014
I'm currently trying to create binary file will not be able to be read as texts and will contain metadata(more like image files).
But I've tried writing to .dat, .bin files in binary mode and all of them are displaying in ascii text..which I don't want.
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May 31, 2013
I want to know how to read multiple text files in this program... I have 5 text files(order1,order2,...order5).
#include<iostream.h>
#include<fstream.h>
#include<conio.h>
#include<windows.h>
using namespace std;
class{
[Code] ....
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Feb 5, 2014
I'm writing a code obfuscator in C. Debugger shows no errors in the code, but the program crashes after compiling -- I'm guessing it has something to do with while loops or reading data from files.
Code:
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
// list off all replaced elements
typedef struct ReplaceList {
char *from;// from string
char *to;// to string (random)
[Code] ....
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Jan 29, 2013
Basically I am to create a program that will read two saved text files; one is [2x4] ~ (matrixA.txt) and another is [4x2] ~ (matrixB.txt). The program is supposed to read both text files, multiply them, and generate an output that will be saved as ~ (matrixC.txt).
So here is my horrible attempt at it:
Code:
#include <stdio.h>
int main() {
FILE * fileA;
FILE * fileB;
FILE * fileC;
[Code] .....
And these are the compile errors...
C:UsersLeDerpHW1.c: In function `main':
HW1.c:27: parse error before `int' //Line 28
C:UsersLeDerpHW1.c: At top level:
HW1.c:34: warning: parameter names (without types) in function declaration //35
HW1.c:34: warning: data definition has no type or storage class //35
HW1.c:35: parse error before `for' //37
[Code] .....
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Nov 23, 2013
I am trying to make a simple program, I would like it to be able to do the following, Write a program that opens two text files (input1.txt and input2.txt) for input .The program should write the followings in the two files. input1.txt:
This is the first line in input1.txt.
This is the second line in input1.txt.
This is the third line in input1.txt.
This is the fourth line in input1.txt.
input2.txt:
This is the first line in input2.txt.
This is the second line in input2.txt.
This is the third line in input2.txt.
What would be the best way to go about doing this? I wrote the program below, but I don't think that it works.
#include <iostream>
#include <fstream>
#include <string>
int main()
{
using namespace std;
string input1;
[Code]...
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Mar 31, 2014
I am creating a simple log parser (loads a text file and filters out unnecessary information, but has the option to show the full log) and I'm running into an issue with fairly large log sizes (50+mgs). I have seen a few recommendations from a stream to memory manged files and even alternate 3rd party controls.
I foresee a few issues with any of the non-third party solutions (which I would prefer to avoid third-party add-ins) such as the scroll bar not correctly reporting the relative length or position of the complete text in the box (when displaying only a portion of the file at a time) and in the stream solution where you read on scroll (as necessary) have not only the same issues, but how do you resume reading in the middle of the file? This also all assumes I would be periodically clearing the RichTextBox to keep the memory usage down to avoid an OutOfMemoryException (which I have been running into.)
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Jun 10, 2014
#include<iostream>
#include<conio.h>
#include<fstream>
#include<windows.h>
using namespace std;
int main(){
string ptr,a;
string b="E:project";
[Code] ....
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Dec 15, 2014
My problem is when I try to show the contents of my text files after I add a contact it wont show me anything.
#include <iostream>
#include <conio.h>
#include <string>
#include <windows.h>
#include <fstream>
#include <cstdlib>
using namespace std;
//prototypes
void printline(char, int);
[code].....
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Jun 8, 2013
I am supposed to read(scan) data from a folder with multiple(21578) text files, and file names are numbered from 1 to 21578,and read each word that occurs in a text file, and count the number of times it occurs in the entire folder,i.e; in all the files how do i go about it? I've tried this so far..but it isn't working..
#include <iostream>
#include <map>
#include <string>
using namespace std;
void incrementString(map<string, int> &theMap, string &theString) {
if(theMap.count(theString)) {
[Code] ....
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Aug 19, 2013
I want to search and display the field stored in text file and also i want to delete the field that is entered. Case 3 and 4 is incomplete.
#include<iostream>
#include<fstream>
#include<string>
using namespace std;
int main() {
int a;
int st_id;
[Code] ....
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Jan 7, 2015
So im trying to create a quiz using c++ that incorporates three different types of questions. These are the standard one answer question, true false questions and multiple choice questions.
How to create the true false and multiple choice questions?
One way that i came up with looks like this
Question A answer1 B answer2;
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Mar 31, 2014
I have a text file that contains values as follows:
2013 05 27 15 52 02.049824 231.401 0.022 49.738
2013 05 27 15 52 02.668822 229.814 0.019 49.738
2013 05 27 15 52 03.283705 228.528 2.599 49.726
2013 05 27 15 52 03.898469 230.140 2.576 49.751
Column1=date, Column2=Month, Column3=Day, Column4=Hour, Column5=Minute, Column6=Seconds, Column7=Voltage(Vrms), Column8=Current(Irms), Column9=Frequency(Hz).
I have to develop a program that will analyse these time-sampled voltage and current measurements over 24 hours and find the total energy used, mean and peak power consumption and Energy used over each hour of the 24 hour period.
How do I go about doing this? I also have to use at least one integration method. The file data contains over 50 thousand lines in the format mentioned above.
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Nov 26, 2013
#include <iostream>
#include <cstdio>
#include <fstream>
#include <string>
#include <iomanip>
using namespace std;
const int SZ = 55;
[Code] ....
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Oct 8, 2014
I have to enhance my BMI program to tell whether the person is at optimal weight, under weight, or overweight and I cannot find the correct calculation. Here is the code I have so far that works for calculating the BMI.
namespace Body_Mass_Index {
public partial class BMI_HW : Form {
public BMI_HW() {
InitializeComponent();
[Code] ....
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