Thanks for everyones help. I went through it last night and started from scratch. A few points:

I had designated the counter in a for loop, which I didn't want to do. It was there by error. So...

#include <fstream.h>
#include <stdlib.h>
#include <assert.h>


int i, j;
int matrix[10000][5] = {0}; //Define a matrix with a maximum of 100 rows and 6 columns
int...

yeah i tried changing that part to different combinations of code that mean the same thing... no change though :(

That asseret didnt work either... just doubles 10 and 11, leaving 00 as zero.

Yeah the counters are there... they're just not working :(

Oh, and I tried the above suggestion, but that didn't work either. Still weird numbers.

Hate to do this vernon but...

counters array???

Hi. I tried that but it still didn't work. An example of the output:


Desired number of repeats = 3

1 0 0 0 1
2 0 0 1 1
3 0 0 0 1
4 1 2 1 1
5 1 2 1 1

Ok, well forgetting that comment (I have to excess comment to submit it to my markers, they're really strict on it)...

I'm not missing the 1-0 count. It is there if you look again.

The counting...

ok guys... i attempted a counter of my own accord. Code as follows:


#include <fstream.h>
#include <stdlib.h>


int i, j;
int matrix[10000][5] = {0}; //Define a...

Hi guys,

I have an input file as below (it is a family tree):

1 0 0
2 0 0
3 0 0
4 1 2
5 1 2
6 0 0

my program REALLY doesnt like that += thing you did...

it runs the program but crashes? It gives an error to that line.

I'm sorry but that made absolutely no sense to me whatsoever...

I'm all for working things out myself, but I can't get my head around this one I'm afraid...

...and if you could show me using my previous example that would be fantastic :)

No I don't have to store each individual number as I will not be using it again, all I need is the average.

So could you possibly explain to me a bit better how to go about getting the average...

I have an equation within a while loop like this:


while(repeats != 1000000){

x = rand1;
y = rand2;

result = x + y;
cout << result;

ok, instead i did a while loop like this:

while(repeats != 1000000){
Equation = x + y;
Cout << Equation;
repeats++;
}

So basically, it prints the above 1000000 times. Instead, what I want...

Hi guys,

I'm sure this is pretty simple really, but I can't get my head around it.

I have a long equation that I'm using c++ to work out. It involves a random number generator, so each time the...

Yeah, basically x1, x2, and x3 change every time it is run, but it changes a little bit less each time. For example:

x1: 0.56778
x2: 0.12234
x3: 0.32214

x1: 0.56877
x2: 0.12945
x3: 0.32715

My program initially asks the user to input 3 values, x1, x2 and x3.

These get fed into a mathematical equation and come out of it the other side slightly altered.

The program then prints to...

hmm, still aborts for some reason?

Like this...?


for (i=0; i < 3; i++){

printf("\n%f\t%f\t%f", matrix[i][j]);

for (j = 0; j < 3; j++)
{
inFile >> matrix[i][j];

input file:

1 0 0
2 1 0
0 2 1

I would like to produce this in a 3x3 array on screen. My code:


#include <fstream.h>

Sorry, I posted it, did you get it? I don't want to leave it up as I don't want it to get seen.

For the first option, use 0.4.

For the second, Use a repeat from 1 - 9, it doesnt work properly...

Ahh, I had to put this:

indIndex1 = ind1 - 1;
indIndex2 = ind2 - 1;

After I declared what ind1 and 2 was. That compiled.

However, when I come to print the results, when I run it once, it...

Thanks for that. I did completely forget though, I wanted to track 2 individuals and record the numbers of 00's 01's and 11's too.

So I set up a very similar counter as the one I did before. It...

Haha, yes we did.

I did post one last question though :)

My last question I think :)

I need to print all of my work to an output file called 'output.txt'

Could anybody show me how to do this please?

Thank you :)

Don't worry guys I solved it. I just did this:

else
if (matrix[i][3]==0 && matrix[i][4] ==1 || matrix[i][3]==1 && matrix[i][4] ==0)
{
counters[0][1]++;
}

Yeah thats right it works fine without adding them together, but just doesnt when i do.

The correct scores are not added up.

I've tried dumping them in variables and then adding the variables...

Great. Everythings running really well. Apart from this counter:


for(i = 0; i < numRows; i++)
{
if (matrix[i][3]==0 && matrix[i][4] ==0)
{
counters[0][0]++;
}

Also, you told me to fix that while loop to a for loop. At the moment it looks like this:


while (inFile >> matrix[numRows][0])
{
printf ("%d\t", matrix[numRows][0]);
for (j = 1; j < numCols;...

I have placed the counter just after the program closes the infile. I'm pretty sure this will work. I placed int counters[2][2] = {0}; as a global variable, and the code looks like this:

...

Brilliant!

Ok, I'm on the right track then. Where exactly in my code would you place the if statements? After the array has run obviously, but where exactly? Also, where would I place the

int...

Also, I'm wanting my program to track 2 individuals out of the family tree.

So when the program starts, I want it to say, which 2 individuals are you interested in?

e.g.

>5
>9

Can I get...

... so it would be:



if (matix[i][3]==0 && mattrix[i][4] ==0)
{
counters[00]++;
}

if (matix[i][3]==0 && mattrix[i][4] ==1)

Right, well the if statements it is then!

You say use...


if (matrix[i][3] == 0)
counters[0]++;
else
counters[1]++;

Cheers guys, which do you think I should go for? Being a beginner as I am??

Sorry to be a pain, but could you put it in two separate posts, one on how to read the file in with the extra row, and what i have to change, and one with how to repeat the program 1000 times?
...

sorry yes, I got rid of int counter;

Forget that!

I placed the code as follows:


else{
int dad = matrix[i][1]; // 1 is "dad" column
int mom = matrix[i][2]; // 2 is "mom" column

Ok, well firstly I changed all the numRows to i's.

Then I changed:


while (inFile >> matrix[i][0])
{
printf ("%d\t", matrix[i][0]);
for (j = 1; j < numCols; j++)
{