Thanks  Vince,

Workarounds are possible, but  I would be happy to  understand, if possible,  
why weewx is adding  a " ="  ( which is not expected) to tags for  parameters  
with group unit  "group_concentration "

 

> Le 28 févr. 2025 à 20:56, vince <[email protected]> a écrit :
> 
> Why not simply format the .raw value to the required number of decimal places 
> ?
> 
> I do this with my purpleair data from a secondary db, if it helps any....
> 
>              <tr>
>                 <td class="stats_label">pm2_5_cf_1</td>
>                 <td 
> class="stats_data">$latest('purpleair_binding').pm2_5_cf_1.formatted 
> $unit.label.pm2_5_cf_1</td>
>               </tr>
> 
> 
> On Friday, February 28, 2025 at 7:50:18 AM UTC-8 [email protected] 
> <http://gmail.com/> wrote:
>> Thanks for your reply Tom.
>> The problem does not seems here to be due to "false" or "False"  since a tag 
>> such as "$current.pm1_0"  is computed as " = 1.1 &#181;g/m&#179;"  with the 
>> " ="  before the value of the tag.
>> Le vendredi 28 février 2025 à 16:37:20 UTC+1, Tom Keffer a écrit :
>>> Not sure if this is the problem, but try using "false" instead of "False".
>>> 
>>> On Fri, Feb 28, 2025 at 7:36 AM [email protected] <> <[email protected] 
>>> <>> wrote:
>>>> the end of my email was somehow not visible...
>>>> 
>>>>  (see http://meteo-sciez.fr/site/mesures.php)
>>>> 
>>>> Do you have any idea why a " =" is added in front of tags for pmx_x values?
>>>> 
>>>> Le vendredi 28 février 2025 à 16:01:27 UTC+1, Jacques Terrettaz a écrit :
>>>>> Hello,
>>>>> 
>>>>> I have recently installed a Davis Airlink sensor, and configured the 
>>>>> following weewx plugin : https://github.com/chaunceygardiner/weewx-airlink
>>>>> I have added to my sqlite database the fields "pm1_0", pm2_5" and 
>>>>> "pm10_0".
>>>>> 
>>>>> Almost everything seems OK : sqlite database receiveing the date, image 
>>>>> generator  working ( http://meteo-sciez.fr/weewx/airlink/), but I still 
>>>>> have some problems with template tags :
>>>>> 
>>>>> WIth the following test  tmpl file :
>>>>> 
>>>>> pm1-act-label-false|$current.pm1_0.format(add_label=False)
>>>>> pm1-act|$current.pm1_0
>>>>> pm1-act-raw|$current.pm1_0.raw
>>>>> outTemp-act-label-false|$current.outTemp.format(add_label=False)
>>>>> outTemp-act|$current.outTemp.format
>>>>> outTemp-act-raw|$current.outTemp.raw
>>>>> 
>>>>> the output is :
>>>>> 
>>>>> pm1-act-label-false|= 1.1
>>>>> pm1-act|= 1.1 &#181;g/m&#179;
>>>>> pm1-act-raw|1.0662251655629138
>>>>> outTemp-act-label-false|10.7
>>>>> outTemp-act|10.7 &#194;&#176;C
>>>>> outTemp-act-raw|10.72222222222222
>>>>>  
>>>>> (see http://meteo-sciez.fr/weewx/tagssciez/testpm.txt 
>>>>> 
>>>>> Only for pm1_0, pm2_5 and pm10_0, there is a " =" at the beginning for 
>>>>> tags such as "$current.pmX_X" or "$current.pmX_X.format(add_label=False)"
>>>>> 
>>>>> This " =" is visible also for a skin such as weewx-wdc :
>>>> 
>>>> 
>>> 
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