Pushing existing tags from a spy.search into a Workbench Analysis.

[Robert Rhodes]

I am trying to push a curated dataframe of existing tags that was queried with a spy.search then dropna was done on "Estimated Sample Period" to remove stale tags.  Any ideas on how to do this? I would also like to perform the formula function .convertUnits('eu') in the process. 
 Any tips, trick, ideas would be appreciated.

[Kin How]

Hi Robert, 

Could you provide more details about the "dropna was done on "Estimated Sample Period" to remove stale tags" step? 

When you run the spy.pull() step, you can apply a calculation to the pull. See this document for more information. 

[Robert Rhodes]

@Ken How,
When I do spy.search and specify the estimate_sample_period for a day and if there is data on a signal it will come back with a timestamp, if it does not have data, it will return a NAT for that signal.  After that step the dataframe.dropna(subset=['Estimated Sample Period']) can be used to remove NAT rows as well.  Then I am left with a dataset of good tags that I want to insert into a Workbench after doing the convert. 

spy.search({
    'Name': 'Area ?_Compressor Stage',
    'Datasource Name': 'Example Data'
}, estimate_sample_period=dict(Start='2019-01-01', End='2019-01-30'))

Edited August 17 by Robert Rhodes

[Kin How]

Hi Robert, 

After the spy.search and dropNA step, you can create a metadata to convert the unit of the selected signals and push it to Seeq workbench. 

#Search for tags and dropNA
search_df = spy.search({
    'Name': 'Area ?_Compressor Stage',
    'Datasource Name': 'Example Data'
}, estimate_sample_period=dict(Start='2019-01-01', End='2019-01-30'))

search_df = search_df.dropna(subset=['Estimated Sample Period'])

# Create a copy of the search table so we can manipulate it
formulas = search_df.copy()

formulas

#Create the metadata
formulas['Name'] = formulas['Name'] + '_convertunit'
formulas['Formula'] = '$signal.convertUnits(\'C\')' #For this example, I am converting the unit to DegC. 
formulas['Formula Parameters'] = '$signal=' + formulas['ID']
formulas.head()

#Push the metadata to Seeq workbench
spy.push(metadata = formulas[['Name', 'Formula', 'Formula Parameters']],
         worksheet='Unit Conversion')

 

[Robert Rhodes]

@Ken How,

That solution is working like a charm, but there seems to be a limit of 10 signals once I open the workbook.  Any ideas on if there is a limit on the push or should I be doing  something different?

[Siti Tay]

Hi Robert,

Right now the spy.push can only show 10 items in the display. The rest of the items are still pushed and searchable. A workaround to get more than ten pushed signals to display in the Worksheet is discussed in :Increase the number of displayed signals from 10 when spy.push is used