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piqingyan

China
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Posted - 12/03/2004 :  7:43:43 PM  Show Profile  Edit Topic  Reply with Quote  View user's IP address  Delete Topic
Origin Version (Select Help-->About Origin): origin7.0
Operating System:win2000
in the graph of "histogram with probalities",what does the cumulative counts mean?

easwar

USA
1965 Posts

Posted - 12/03/2004 :  9:45:31 PM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Hi,

If you open the corresponding worksheet (which is named Bin1 etc), you will see that what is plotted here is the last column of the worksheet called Perc. This quantity is just the running/cumulative sum expressed as a % of the total (sum of all bin counts).

For example, if I start with numbers 1,2,3,4,5,6 in a col and perform this operation, the bin worksheet shows:

A Counts1 Sum1 Perc1
1 1 1 16.66667
3 2 3 50
5 2 5 83.33333
7 1 6 100



Sum1 is just cumulative/running sum of bin counts and Perc1 is Sum1 expressed in % of total of all bin counts (6 in this example).

Easwar
OriginLab

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piqingyan

China
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Posted - 12/12/2004 :  8:09:45 PM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
thank you for you reply!
may you happy everyday!
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