Excluding Zero values from an Average Rollup

[Mac]

Is it possible to exclude records that have a zero value from an average rollup?

[drassi · Accepted solution]

There is no built-in aggregation function that does this. The easiest way I can think of to do this is simply create a formula column on the child table that filters out zeros, then do an AVERAGE() rollup on the formula field instead of directly on the numeric field. E.g.:

New “Nonzero” formula column on child table, with formula “IF(Value>0,Value)”
Rollup column on parent table, redefined as Rollup > Child Table > “Nonzero” > AVERAGE(values)

Should do what you want.