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Top Forums Shell Programming and Scripting Store in a 2 dimensional array - Perl Post 302745571 by @man on Monday 17th of December 2012 02:40:44 PM
Old 12-17-2012
Thanks bartus11!

now that I have this 2 dimensional array I would like to do this afterward:

I want to fill an empty matrix with these letters in this array. The reason for creating random numbers is to take the letters in a random order.

So I add another column to this array with 0 values:

print "$TF[$i]\t" . rand(1) . "\t0\n";


Code:
A	0.724392652	0
C	0.100361935	0
D	0.980176163	0
B	0.626905862	0
E	0.545560827	0
A	0.207170636	0
D	0.233475703	0
C	0.248689653	0
E	0.441124913	0
A	0.695127525	0
B	0.028040103	0
E	0.980644345	0

After sorting based on random numbers the letter is taken and feed to this empty matrix. Each row shouldn't have more than 3 letters in total. by taking each letter the 0 value in array is replaced by 1 , so next time if it is 1 means that we have to skip since it has been taken once.

Do you think you can help me with this? :/

Thanks alot
 

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RANDOM(3)						     Linux Programmer's Manual							 RANDOM(3)

NAME
random, srandom, initstate, setstate - random number generator. SYNOPSIS
#include <stdlib.h> long int random(void); void srandom(unsigned int seed); char *initstate(unsigned int seed, char *state, size_t n); char *setstate(char *state); DESCRIPTION
The random() function uses a non-linear additive feedback random number generator employing a default table of size 31 long integers to return successive pseudo-random numbers in the range from 0 to RAND_MAX. The period of this random number generator is very large, approx- imately 16*((2**31)-1). The srandom() function sets its argument as the seed for a new sequence of pseudo-random integers to be returned by random(). These sequences are repeatable by calling srandom() with the same seed value. If no seed value is provided, the random() function is automati- cally seeded with a value of 1. The initstate() function allows a state array state to be initialized for use by random(). The size of the state array n is used by init- state() to decide how sophisticated a random number generator it should use -- the larger the state array, the better the random numbers will be. seed is the seed for the initialization, which specifies a starting point for the random number sequence, and provides for restarting at the same point. The setstate() function changes the state array used by the random() function. The state array state is used for random number generation until the next call to initstate() or setstate(). state must first have been initialized using initstate() or be the result of a previous call of setstate(). RETURN VALUE
The random() function returns a value between 0 and RAND_MAX. The srandom() function returns no value. The initstate() and setstate() functions return a pointer to the previous state array, or NULL on error. ERRORS
EINVAL A state array of less than 8 bytes was specified to initstate(). NOTES
Current "optimal" values for the size of the state array n are 8, 32, 64, 128, and 256 bytes; other amounts will be rounded down to the nearest known amount. Using less than 8 bytes will cause an error. CONFORMING TO
BSD 4.3 SEE ALSO
rand(3), srand(3) GNU
2000-08-20 RANDOM(3)
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