Re: [weewx-user] Re: discrepancies between min/max on archive vs _archive tables

2018-01-08 Thread Constantine Samaklis
Yes, makes sense. Thanks Andrew.

On Mon, Jan 8, 2018 at 8:52 AM Andrew Milner 
wrote:

> Archive records the average value for the archive period.
>
> Daily tables record archive value OR loop value for max and min -
> depending on the setting in weewx.conf for loop_hilo (I think that is the
> correct name)
>
> Does that help??
>
>
>
> On Monday, 8 January 2018 15:39:09 UTC+2, Constantine Samaklis wrote:
>
>> Hi,
>>
>> I have been going through my data and have noticed some discrepancies in
>> extreme (min/max) values between the archive table and the
>> _archive tables
>>
>> For example:
>>
>> select min(`windchill`) from archive;
>>
>> gives me a value of -15.84
>>
>> but when doing the same query on archive_day_windchill
>>
>> select min(`min`) from archive_day_windchill;
>>
>> gives me a value of -19.10
>>
>> I am using a Vantage pro weather station.
>>
>> I am not sure if the archive table records the value at the preset
>> interval where the archive_day_windchill records the min/max values
>> independently on the interval, based on what the weather station pushes
>> out. (The vantage pro fires multiple times per min where my interval is set
>> to 10 min)
>>
>> Any insight would be very helpful.
>>
>> Thanks
>>
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[weewx-user] Re: discrepancies between min/max on archive vs _archive tables

2018-01-08 Thread Andrew Milner
Archive records the average value for the archive period.

Daily tables record archive value OR loop value for max and min - depending 
on the setting in weewx.conf for loop_hilo (I think that is the correct 
name)

Does that help??



On Monday, 8 January 2018 15:39:09 UTC+2, Constantine Samaklis wrote:

> Hi,
>
> I have been going through my data and have noticed some discrepancies in 
> extreme (min/max) values between the archive table and the 
> _archive tables
>
> For example:
>
> select min(`windchill`) from archive; 
>
> gives me a value of -15.84
>
> but when doing the same query on archive_day_windchill
>
> select min(`min`) from archive_day_windchill;
>
> gives me a value of -19.10
>
> I am using a Vantage pro weather station.
>
> I am not sure if the archive table records the value at the preset 
> interval where the archive_day_windchill records the min/max values 
> independently on the interval, based on what the weather station pushes 
> out. (The vantage pro fires multiple times per min where my interval is set 
> to 10 min)
>
> Any insight would be very helpful.
>
> Thanks
>

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