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Random Numbers

Does anyone know how to make $rand(0,3) very common, $rand(4,6) rare, and
$rand(7,9) extremely rare and link it to echo one number?

eg:

blah 3-3 blah would be very common or 2-2 or 2-1 etc.

Also, if it helps, the 0-3 has a 75% "success rate", 4-6 has 40, and 7-9 has
10.

Thanks alot everyone

Rich


Jul 16 '05 #1
3 2187
$tmp=rand(0,100)
if($tmp<=75)
{
echo rand(0,3);
}
elseif($tmp<=95)
{
echo rand(4,6);
}
else
{
echo rand(7,9);
}

is that what you want?
--
// DvDmanDT
MSN: dv******@hotmail.com
Mail: dv******@telia.com
"Ricardo" <bh********@blueyonder.co.uk> skrev i meddelandet
news:3i***************@news-binary.blueyonder.co.uk...
Does anyone know how to make $rand(0,3) very common, $rand(4,6) rare, and
$rand(7,9) extremely rare and link it to echo one number?

eg:

blah 3-3 blah would be very common or 2-2 or 2-1 etc.

Also, if it helps, the 0-3 has a 75% "success rate", 4-6 has 40, and 7-9 has 10.

Thanks alot everyone

Rich

Jul 16 '05 #2
Yep, got that, but how do I show it, eg: blah 3 - 6 blah...
"DvDmanDT" <dv******@telia.com> wrote in message
news:Vs*******************@newsb.telia.net...
$tmp=rand(0,100)
if($tmp<=75)
{
echo rand(0,3);
}
elseif($tmp<=95)
{
echo rand(4,6);
}
else
{
echo rand(7,9);
}

is that what you want?
--
// DvDmanDT
MSN: dv******@hotmail.com
Mail: dv******@telia.com
"Ricardo" <bh********@blueyonder.co.uk> skrev i meddelandet
news:3i***************@news-binary.blueyonder.co.uk...
Does anyone know how to make $rand(0,3) very common, $rand(4,6) rare, and $rand(7,9) extremely rare and link it to echo one number?

eg:

blah 3-3 blah would be very common or 2-2 or 2-1 etc.

Also, if it helps, the 0-3 has a 75% "success rate", 4-6 has 40, and 7-9

has
10.

Thanks alot everyone

Rich


Jul 16 '05 #3
Ricardo wrote:
Does anyone know how to make $rand(0,3) very common, $rand(4,6) rare, and
$rand(7,9) extremely rare and link it to echo one number?

eg:

blah 3-3 blah would be very common or 2-2 or 2-1 etc.

Also, if it helps, the 0-3 has a 75% "success rate", 4-6 has 40, and 7-9 has
10.

Thanks alot everyone

Rich

How does that happen? that's 125%!

Anyway, assuming that the 75 above was a 50, do this:

Create an array. The first 50 elements between 0 - 3. The next 40 is 4 -
6, and the last 10 are 7 - 9. Then pick a random number between 0 and
99. Statistically, your percentages should work out.

Jul 16 '05 #4

This thread has been closed and replies have been disabled. Please start a new discussion.

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