Thank you for the reply Andrew. Followup questions below
On Tuesday, April 30, 2019 at 9:35:13 AM UTC-4, Andrew Milner wrote:
>
> 1. It is the change in pressure over, I think, the last 3 hours. Check
> the template and see what delta is actually being used to populate the
> field if you want a definitive answer
>
Is this where and what you were referring to?
/etc/weewx/skins/Seasons/statistics.inc
...
<tr>
<td class="label">$obs.label.barometer</td>
<td class="units">$unit.label.barometer</td>
#for $archive in $archive_data
<td class="data
new_row">$archive.barometer.max.format(add_label=False)<br/>
<span class="timestamp">$archive.barometer.maxtime</span><br/>
$archive.barometer.min.format(add_label=False)<br/>
<span class="timestamp">$archive.barometer.mintime</span>
</td>
#end for
</tr>
I'm guessing this is probably the wrong answer.
>
> 3. You say you have an Ambient station rather than Fine Offset - so what
> applies to one may not apply to the other. Only read things pertaining to
> your specific station. The formula used for barometer and altimeter
> derivations are well documented - either search the forum for this specific
> answer or check the comments in the code.
>
Ambient is rebranded FineOffset hardware.
Might you know in which file and where exactly that code is contained?
> 4. All weewx calculations are done using floating point with REAL types
> and no restriction on number of places. If you use MySQL instead of
> sqlite3 it is possible to specify in the database fields the number of
> digits to the right - but as far as I know this is not possible in sqlite3.
>
I embarrassed to admit, I know next to nothing about SQL no matter what
database engine is in play; however, I trying to learn on my own. Next year
when I turn 65, I plan to enroll in University of Maine classes as that's
when tuition fees are waived.
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