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corinadejong19's avatar
corinadejong19
Copper Contributor
Sep 09, 2019

excel error mean calculation with #number! in column

I am designing a database. In this database I have a column with totals that is often updated. Part of the cells of this column are filled with numbers and part with #number! were not all info is available yet. Despite the presence of missing data I would like to calculate the mean of the already present data. But if I write a simple formula: =MEAN(L2:L63) this doesn't work because of the #number! errors in some of the cells. I would like excell to ignore the errors and calculate the mean of the already present data. I thought something along the lines of: IFcell>=0 THEN MEAN (L2:L63) may work but unfortunately not. Can somebody give me a tip on how to solve this? Thanks!

6 Replies

  • Riny_van_Eekelen's avatar
    Riny_van_Eekelen
    Platinum Contributor

    corinadejong19 

     

    Include and error check in the formula for the total column. For example:

    =IF(ISERROR(SUM(A1:C1)),"",SUM(A1:C1))

    It returns an empty cell in case the sum formula would otherwise generate an error.

     

    • corinadejong19's avatar
      corinadejong19
      Copper Contributor
      Thanks! My column is based on a datedif function: DATEDIF(E2;F2;“d“). If I add the error check like in your example it looks like this: =IF(ISERROR(DATEDIF(E2;F2;“d“)),““,DATEDIF(E2;F2“d“)) . Tried this in excel but I get the reply that this does not contain enough arguments. Do you know how I can solve this? Thanks!

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