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#1 2013-08-12 21:54:55

tina123
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Formula of histogram

Can anyone please explain me formula of histogram defined in this wiki link
http://en.wikipedia.org/wiki/Histogram

We say that histogram is the counts of observation in bins.
So Let say if bins are from 0 to 179. then what does mean by mi in the formula?
i think n is the counts of observation.

Kindly, explain it. thanks

Expecting a fast response
Thanks

#2 2013-08-12 22:14:42

bobbym
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Re: Formula of histogram

Hi;

Here is how I see it:

If n is the total number of observations, and k is the number of bins, then mi is the number in each bin or frequency.


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

#3 2013-08-12 22:56:36

tina123
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Re: Formula of histogram

hmm .. and Who did define that formula?
I can need to know author and its paper. I can't find.
Please help me to know its writer and its paper where he defined the formula.
Thanks

#4 2013-08-13 00:56:04

bobbym
Administrator

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Re: Formula of histogram

Hi;

If I am right ( what are the chances ) it is self evident. It says add up what is in each bin and you should have the total number.


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

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