AgGrid sub-header using a different aggfunc

Custom Components streamlit-aggrid
1

Hey everyone,

is it possible to create a custom aggfunc for sub-groups within an aggrid table?

i.e as I want to see data either monthly (avg) or daily of item values, so I choose avg as my aggfunc within the table.

However I want to see the group sub-totals as sums of the item average (per time period) and not the average of all the values in the time period. Do I need to make a custom agg-func in JS to parse into the options builder? Or is this even possible?

    gb = GridOptionsBuilder()
  
    gb.configure_default_column(
    resizable=True,
    filterable=True,
    sortable=True,
    editable=False,
    )
     
    gb.configure_column(
    field="value",
    header_name="Value",
    width=100,
    type=["numericColumn","numberColumnFilter","customNumericFormat"], precision=0,
    aggFunc='avg'
    )
    gb.configure_column(
    field="subtype",
    header_name="subtype",
    width=100,
    rowGroup=True,
    hide=True
    )
    gb.configure_column(
    field="item",
    header_name="item",
    width=100,
    rowGroup=True,
    )
    gb.configure_column(
    field="type",
    header_name="dataType",
    width=100,
    pivot=True
    )
 
    gb.configure_column(
    field="virtualYear",
    header_name="year",
    valueGetter='new Date(df.day).getFullYear()',
    pivot=True,
    #hide=True
    )
    gb.configure_column(
    field="virtualMonth",
    header_name="day month",
    valueGetter="new Date(df.day).toLocaleDateString('en-US',options= {year:'numeric', month:'2-digit'})",
    pivot=True
    )
    gb.configure_column(
    field="day",
    header_name="day",
    width=100,
    pivot=True,
    )
    
    gb.configure_grid_options(
    tooltipShowDelay=0,
    pivotMode=True,
    )
    
    g_opt = gb.build()

    g_opt['groupIncludeTotalFooter'] = True
       
    AgGrid(data, gridOptions=g_opt, height = 600)

Screenshot 2023-11-18 093243