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creating median of time period
I am working with water quality data organized by sample date, with samples
taken 2x/month. I need to sum the sampled parameter values for a time period of interest, with the sample date being the median of that time period. How do I create the time periods of interest when the samples are not recorded on the same dates each month? THanks |
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#2
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creating median of time period
Please supply a short list of sample dates, and whatever "time periods of
interest" you would like to see..........then perhaps someone can give you a formula to automate the process. Vaya con Dios, Chuck, CABGx3 "LB" wrote: I am working with water quality data organized by sample date, with samples taken 2x/month. I need to sum the sampled parameter values for a time period of interest, with the sample date being the median of that time period. How do I create the time periods of interest when the samples are not recorded on the same dates each month? THanks |
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#3
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creating median of time period
10/13/2006 10/20/2006 11/11/2006 11/20/2006 12/7/2006 12/15/2006 1/12/2007 I need to capture time periods around the sample date, where the sample date is the median. Make sense? Thanks again "CLR" wrote: Please supply a short list of sample dates, and whatever "time periods of interest" you would like to see..........then perhaps someone can give you a formula to automate the process. Vaya con Dios, Chuck, CABGx3 "LB" wrote: I am working with water quality data organized by sample date, with samples taken 2x/month. I need to sum the sampled parameter values for a time period of interest, with the sample date being the median of that time period. How do I create the time periods of interest when the samples are not recorded on the same dates each month? THanks |
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#4
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creating median of time period
Not completely.............please give examples of the "Time periods" you
expect to see as a result of the shown dates.......... Vaya con Dios, Chuck, CABGx3 "LB" wrote: 10/13/2006 10/20/2006 11/11/2006 11/20/2006 12/7/2006 12/15/2006 1/12/2007 I need to capture time periods around the sample date, where the sample date is the median. Make sense? Thanks again "CLR" wrote: Please supply a short list of sample dates, and whatever "time periods of interest" you would like to see..........then perhaps someone can give you a formula to automate the process. Vaya con Dios, Chuck, CABGx3 "LB" wrote: I am working with water quality data organized by sample date, with samples taken 2x/month. I need to sum the sampled parameter values for a time period of interest, with the sample date being the median of that time period. How do I create the time periods of interest when the samples are not recorded on the same dates each month? THanks |
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