---
title: percentUnknown
framework: coremotion
role: symbol
role_heading: Instance Property
path: coremotion/cmtremorresult/percentunknown
---

# percentUnknown

The percentage of time when the algorithm couldn’t make a determination.

## Declaration

```swift
var percentUnknown: Float { get }
```

## Discussion

Discussion Both active motion and low signal level can cause percentUnknown results.

## See Also

### Accessing Tremor Data

- [percentNone](coremotion/cmtremorresult/percentnone.md)
- [percentSlight](coremotion/cmtremorresult/percentslight.md)
- [percentMild](coremotion/cmtremorresult/percentmild.md)
- [percentModerate](coremotion/cmtremorresult/percentmoderate.md)
- [percentStrong](coremotion/cmtremorresult/percentstrong.md)