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Need Query for histogram

Posted on 2004-09-17
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Last Modified: 2012-06-27
I need the proper syntax for a histogram. Name of table: tblinprocess, field, timestamp. How do I get the totals I need for a histogram. Thank you for the response.
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Question by:marlind
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miqrogroove earned 500 total points
ID: 12104709
Marlind, there are probably several ways to attack this problem.

As you know, a statistical histogram requires not only the input data, but also "bins" specified by sizes or ranges.  Could you describe for me how you want the bins arranged, how you will determine that arrangement, and will it change dynamically?

A histogram with static bins can probably be designed using one or two queries with both IIf statements and Sum functions.

A dynamic histogram system will need to have the bins pulled from a second source and will require a more complex query, or possibly even some programming code.

Also, if you would, describe the end product you need.  If you need a histogram chart, then perhaps designing a PivotTable or exporting data to Excel would be a better approach than using queries at all.

-- Miqro
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by:marlind
ID: 12105008
Those are good questions. Let me put some thought into the questions and get back to you.
Thank You.
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