Opened 10 years ago

Last modified 9 years ago

## #690 new defect

# AveragerPair::sum_xy_centered unstable

Reported by: | Peter | Owned by: | Peter |
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Priority: | minor | Milestone: | yat 0.x+ |

Component: | statistics | Version: | trunk |

Keywords: | Cc: |

### Description

I have

AveragerPair ap; ap.add(1,5); ap.add(5,4); ap.add(2,1); ap.add(3,2); ap.add(4,3); cout << ap.sum_xy_centered() << "\n";

which gives output

-3.88578e-16

which is clearly a rounding error as I expected zero. Is it possible to increase the accuracy here?

### Change History (1)

### comment:1 Changed 9 years ago by

Summary: | AveragerPair::sum_xy_centered undstable → AveragerPair::sum_xy_centered unstable |
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