---
title: mean()
framework: tabulardata
role: symbol
role_heading: Instance Method
path: tabulardata/discontiguouscolumnslice/mean()-49u93
---

# mean()

Returns the mean average of the integer slice’s elements, ignoring missing elements.

## Declaration

```swift
func mean() -> Double?
```

## See Also

### Getting Statistical Values

- [sum()](tabulardata/discontiguouscolumnslice/sum().md)
- [min()](tabulardata/discontiguouscolumnslice/min().md)
- [max()](tabulardata/discontiguouscolumnslice/max().md)
- [mean()](tabulardata/discontiguouscolumnslice/mean()-3y11c.md)
- [standardDeviation(deltaDegreesOfFreedom:)](tabulardata/discontiguouscolumnslice/standarddeviation(deltadegreesoffreedom:)-36nx2.md)
- [standardDeviation(deltaDegreesOfFreedom:)](tabulardata/discontiguouscolumnslice/standarddeviation(deltadegreesoffreedom:)-5vd4r.md)