How to calculate average from the data table Columns

How to calculate average from the data table Columns

NikozyNikozy Posts: 6Questions: 3Answers: 0

I want to calculate the total marsks and average of a subject in the colums of all the students

Answers

  • colincolin Posts: 12,490Questions: 0Answers: 2,119

    This example should help - it's showing how to sum a column within footerCallback,

    Colin

  • NikozyNikozy Posts: 6Questions: 3Answers: 0

    is there any way to use it with the firebase?

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