UPDATE: Sorry, I didn't word my original question clearly, I was looking for a function to return 1 or -1 randomly. My code below returns an even 50-50 distribution. I was looking for an even distribution, but random at any one time.

Hi, I recently had a need to run an loop and each time thru the loop I needed to alternatively add or subtract a variable. So I came up with: 

#!/usr/bin/perl

@hits = (-1,1);

for(1..10){
print toggle(),"\n";
}

sub toggle{
push (@hits,shift(@hits));
return $hits[0];
}

[download]
I have a feeling that there is some "golfed way" of doing this in a more simple fashion. I thought about taking the output of rand, and make the number 1 if > .5 and -1 if less than .5. Anyone have ideas? Thanks.

In reply to random negative toggle function by zentara

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