Solved

calculate all possible path from a matrix

Posted on 2006-10-30
4
537 Views
Last Modified: 2010-04-15
hi,


 | a     |   b     |     c     |
---------------------------------|
a| 0.5  | 0.25   | 0.25    | =1
---------------------------------|    
b| 0.375| 0.125 | 0.375  | =1
---------------------------------|
c| 0.125| 0.675 | 0.375  | =1
-----------------------------------


I need calculate the probability from a above matrix

for example, if I want to find a sequence of aab, it should calculate like:
a-->a-->b = 0.5 * 0.25 = 0.125

could someone give me some codes to find "all possible paths" for any given sequence? for example for sequence of 3, there is 3^3=27 possible paths (aaa,aab,aac, aba....ccc.etc). I want to find the probability of all 27 paths.


0
Comment
Question by:rmtogether
  • 2
  • 2
4 Comments
 
LVL 45

Accepted Solution

by:
Kdo earned 500 total points
ID: 17837564

You simply need to next for() loops, one for each level.

for (i1 = 0; i1 < 3; ++i1)
  for (i2 = 0; i2 < 3; ++i2)
    for (i3 = 0; i3 < 3; ++i3)
      fprintf (stdout, "%c%c%c\n", 'a'+i1, 'a'+i2, 'a'+i3);



Good Luck,
Kent
0
 
LVL 45

Expert Comment

by:Kdo
ID: 17837573

NEST for() loops.


That'll teach me to submit without reading......

sigh....

0
 

Author Comment

by:rmtogether
ID: 17838378
hi,

this is something I did so far, I would like modify the my code to find the maximun value of 27 outputs. could someone teach me how to do it?

-----------------------------
#include <stdio.h>


float matrix [3][3]={{0.5,0.25,0.25},
                     {0.375,0.125,0.375},
                     {0.125,0.675,0.375}};

main (){
    int i,j,k;
   
    // printf("the matrix is ");

     for (i=0; i<3; i++){
          printf("\n");
         for (j=0; j<3; j++) {
          //printf("%.3f\t", matrix[i][j]);  
             printf("\n");
            for (k=0; k<3; k++){
              printf("Prob(%d%d%d)=%.5f\n",i,j,k,matrix[i][j]*matrix[j][k]);   ----------------> find the maximun value
           
            }//end third for
                       
        }// end second for
    }// end first for


    system("pause");
}
0
 

Author Comment

by:rmtogether
ID: 17838431
hi, Kdo

Since I got your help already.I will close this question. and ask another one. thanks a lot

http://www.experts-exchange.com/Programming/Programming_Languages/C/Q_22043176.html
0

Featured Post

ScreenConnect 6.0 Free Trial

At ScreenConnect, partner feedback doesn't fall on deaf ears. We collected partner suggestions off of their virtual wish list and transformed them into one game-changing release: ScreenConnect 6.0. Explore all of the extras and enhancements for yourself!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

An Outlet in Cocoa is a persistent reference to a GUI control; it connects a property (a variable) to a control.  For example, it is common to create an Outlet for the text field GUI control and change the text that appears in this field via that Ou…
Windows programmers of the C/C++ variety, how many of you realise that since Window 9x Microsoft has been lying to you about what constitutes Unicode (http://en.wikipedia.org/wiki/Unicode)? They will have you believe that Unicode requires you to use…
The goal of this video is to provide viewers with basic examples to understand how to use strings and some functions related to them in the C programming language.
The goal of this video is to provide viewers with basic examples to understand how to create, access, and change arrays in the C programming language.

785 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question