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Difference between revisions of "Bootstrap"

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<math>S_{i}</math> = The number of sequences in the ith OTU  
 
<math>S_{i}</math> = The number of sequences in the ith OTU  
 +
 +
<math>S_{obs}</math> = Observed number of species
  
  
 
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 15:15, 14 January 2009

Validate output by making calculations by hand

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

<math>S_{obs}</math> = Observed number of species


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