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# Difference between revisions of "Bootstrap"

From mothur

(New page: '''Example Calculations''' '''''*boot*''''' These files give the bootstrap estimate as described by Smith and Van Belle (5) but implemented for a single "quadrant". <math>S_{Bootstrap}...) |
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N = The number of individuals sampled | N = The number of individuals sampled | ||

− | <math> | + | <math>S_{i}</math> = The number of sequences in the ith OTU |

For the Amazonian dataset SBootstrap=112.33 and there is not a simple expression for the 95% confidence interval. | For the Amazonian dataset SBootstrap=112.33 and there is not a simple expression for the 95% confidence interval. |

## Revision as of 15:14, 14 January 2009

**Example Calculations**

***boot***

These files give the bootstrap estimate as described by Smith and Van Belle (5) but implemented for a single "quadrant".

<math>S_{Bootstrap} = S_{obs} + \sum_{i=1}^{S_{obs}} \left ( 1 - \frac {S_i}{N}\right )^N </math>

where,

N = The number of individuals sampled

<math>S_{i}</math> = The number of sequences in the ith OTU

For the Amazonian dataset SBootstrap=112.33 and there is not a simple expression for the 95% confidence interval.