How to renormalize number of flows in Netflow Sampled data

Hi,
I am working on extrapolation(renormalization) of bytes/packets/flows from randomly sampled (1 out of N packets) collected data. I believe bytes/packets can be renormalized by multiplying bytes/packets value in exported flow record by N.
Now, I am trying to extrapolate number of flows. So far i have not got any information on it. Do you people have any idea on how flows can be renormalized from sampled data ?
Well, at the same time i have some doubts regarding this concept altogether -
1. In packet sampling, we do not know how many flows got dropped. Even router cache will not have entries for dropped flows
2. In flow sampling, router cache will maintain entries of all the flows and there may be some way by which one can know how many actual flows were there. But again there is no way to know values of individual attributes in missed flows like srcip/dstip/srcport/dstport etc.(though they are there in flow cache)
3. In case of sampling (1 out of N packets), we anyway multiply #packets and #bytes with N to arrive at estimate for total packets and bytes. When we multiply by N, it means we have taken into account all those packets as well which were NOT sampled. So, it means all the packets which flowed between source and destination have been accounted for. Then there are no missed flows, isn't it ? And if there do exist some missed flows then multiplication by N to extrapolate number of packets/bytes is not correct.
4. What is the use of count of flows anyways. Number of flows may vary depending upon the configuration such as active timeout etc. So, it does not provide any information about the actual flow between source and destination unlike number of packets and bytes.
Please share your thoughts.
Thanks,
Deepak

The simplest way is to call GetTableCellRangeValues with VAL_ENTIRE_TABLE as the range, next summing array elements.
But I don't understand your comment on checksum, so this may not be the more correct method for your actual needs: can you explain what do you mean?
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How to renormalize number of flows in Netflow Sampled data

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