Hi!
I have a table with 2 fields:
person_id and volume
the final goal is to be able to draw a graph in excel representing under X each person, and under Y the corresponding volume (after having sorted the person_id in order to have increasing volumes)
the problem is, excel will obviously not be able to use the 120 000 datapoints, so I need to group the data in a smaller number of points (for example 1200): take the 1200 persons with the highest volume, calculate the average volume, and I get the first datapoint. take the following 1200 persons, etc, etc...
I'm a newbie on Access and SQL, and I have just no idea of how to do that...
If you have any thoughts, many thanks in advance for sharing!
Renaud
1  1447  
Hi!
I have a table with 2 fields:
person_id and volume
the final goal is to be able to draw a graph in excel representing under X each person, and under Y the corresponding volume (after having sorted the person_id in order to have increasing volumes)
the problem is, excel will obviously not be able to use the 120 000 datapoints, so I need to group the data in a smaller number of points (for example 1200): take the 1200 persons with the highest volume, calculate the average volume, and I get the first datapoint. take the following 1200 persons, etc, etc...
I'm a newbie on Access and SQL, and I have just no idea of how to do that...
If you have any thoughts, many thanks in advance for sharing!
Renaud
Let's have a look at some sample data for your table. This will give a little better idea of where to go, but at this point I'm thinking we may be able to use the Partition() function (that just happens to be the tip of the week Tip of the week #28 The Partition() Function this week, thanks ADezii!) to separate your data out before averaging.
Regards,
Scott
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