View source: R/TrajectoryGeometry.R

varianceInDirection | R Documentation |

This function takes a direction and a set of cells epressed in PCs and determines the fraction of total variance in the given direction.

```
varianceInDirection(direction, cells)
```

`direction` |
- a numeric giving the direction expressed in PCs |

`cells` |
- a set of cells given as a matrix where each row is a cell and each column is a PC. This must have at least as many PCs as the direction |

The fraction of total variance (across that many PCs) in the given direction.

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