David,

Variable archive intervals have been supported since weeWX v3.0.0, though I 
believe there was a display/report calculation bug that was addressed in 
3.7.0 (of course we are all running 3.8.0 so neither of these should be an 
issue :))

One thing to be mindful of when using wee_import to import data is that 
when you are deriving the archive interval from the source data (ie finding 
the difference between successive timestamps) missing records can skew this 
significantly. A single missing record in a data set with an interval of 5 
minutes will likely have negligible effect but if you have several hours or 
days missing it may be a different matter. For this reason when importing 
from WeatherUnderground if your WeatherUndergroud data was posted every 10 
minutes it is quite often handy to force wee_import to use a 10 minute 
archive interval as WeatherUnderground often does not return all available 
data, plus it is not unusual for users to have large gaps in their 
WeatherUnderground data.

If you have a changing archive interval in your data and are concerned 
about data gaps, it might be useful to break the import down into smaller 
chunks that use a single archive interval and import that data with a set 
rather derived interval.

Gary

PS. If there is significant reformatting required to import the 
ex-WeatherLink data I am happy to put together a WeatherLink module for 
wee_import, I will just need to know the data format. Only thing is it will 
take time for me to put the module together, though I guess your old data 
is not going anywhere :)

On Friday, 13 April 2018 01:16:54 UTC+10, Andrew Milner wrote:
>
> As far as I know the latest version of weewx casn handle variable 
> intervals- so just let wee_import derive the interval from the time stamps* 
> should* work (I think!!)
>
> someone more knowledgeable maywish to comment ....
>
>
>
> On Thursday, 12 April 2018 17:59:03 UTC+3, dhin...@djhindley.com wrote:
>
>> The import facility looks like the right way to go - but unfortunately my 
>> source data has variable archive intervals. Is there any way of dealing 
>> with this in the weewx import utlility, or is it best to convert all the 
>> source data to have the same archive interval (painful!)?
>>
>> Thanks.
>>
>> On Wednesday, 11 April 2018 17:45:19 UTC+1, dhin...@djhindley.com wrote:
>>>
>>> Hi
>>>
>>> I have just started using weewx on a Raspberry Pi with a Davis Vantage 
>>> using Weatherlink IP. The weather station has been running for 2 years, but 
>>> I only got weewx working from today. All is working fine, except that since 
>>> I updated my archive record to 5mins immediately prior to the installation, 
>>> weewx only shows the recent records. Does anyone know if there is a way I 
>>> can manually add the historical data to the weewx database, so that the 
>>> full history is shown on my weewx webpage? 
>>>
>>> Thanks
>>>
>>

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