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Modal Average
Topic Started: Mar 13 2005, 01:49 PM (270 Views)
mathiaus Mar 13 2005, 01:49 PM Post #1
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mathiaus maximus™
[ * * * * * * ]
 Just wondering if there was a way using either php or javascipt (preferably php but anything will do!) of working out the modal average of a bunch of numbers?

I've checked google and some sites like phpfreaks but returned with no results thus far which would lead me to believe there is no way, however I just thought I'd ask you lot before I gave up hope.

Thanks and Salutations
MarthaStewart
( :yoda: joke!)
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kingy Mar 13 2005, 02:18 PM Post #2
1 in 10 people understands binary, the other 1 doesn't
[ * * * * * * ]
 should be able to,

how are these numbers defined? in an array?
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mathiaus Mar 13 2005, 02:32 PM Post #3
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mathiaus maximus™
[ * * * * * * ]
 It's sort of like a quiz with checkboxes. Each question has 4 answers each with a different number of points assigned to each one.

eg.
Q1
1
2
3
4

Q2
1
2
3
4

so say the person chose 1 and then 1 I'd like if it's possible to come up 1
(lots more questions obviously!)
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kingy Mar 13 2005, 02:56 PM Post #4
1 in 10 people understands binary, the other 1 doesn't
[ * * * * * * ]
 in Js u could have a function to add one to the value of four different variables, dependant on a form input. then you could make a simple logic routine at the end to figure out which of the four variables ends up with the highest value.
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mathiaus Mar 13 2005, 03:21 PM Post #5
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mathiaus maximus™
[ * * * * * * ]
 Thanks! I'll go and try that out then...
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kingy Mar 14 2005, 02:08 PM Post #6
1 in 10 people understands binary, the other 1 doesn't
[ * * * * * * ]
 if you need any help i can make you a little template one...i was thinking u could do the same in php using the same method
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mathiaus Mar 14 2005, 02:25 PM Post #7
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mathiaus maximus™
[ * * * * * * ]
 Right then I've got this in php

Code:
 
<?php

$data = array( 1,2,2,5,6,3,2,1,2,6,7,7);

# mode - number occuring most often
$modearray = array_count_values($data);
arsort($modearray);
list ($mode, $count) = each($modearray);

echo $mode;

?>


That works fine etc and is shorter than what the javacript would be I think?

I started on the javascript but my knoledge of it is very small (size of a pea maybe another 1/2 if I'm lucky!).
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kingy Mar 14 2005, 02:50 PM Post #8
1 in 10 people understands binary, the other 1 doesn't
[ * * * * * * ]
 cool...yeah the js would have been larger, i though it was for an IF site @ first so suggested js.lol
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