Regressing structure function against bin separation: Difference between revisions

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== Bin-centered difference scheme regression ==
== Bin-centered difference scheme regression ==
<div class="mw-collapsible" id="Bin-center-diff regression" data-collapsetext="Collapse" data-expandtext="Expand">
<div class="mw-collapsible" id="Bin-center-diff regression" data-collapsetext="Collapse" data-expandtext="Expand">
# If <math>D_{ll}(n,\delta)</math> was evaluated using a bin-centered difference scheme, the regression can either be done:
# If <math>D_{ll}(n,\delta)</math> was evaluated using a bin-centered difference scheme, the regression is usually done for each bin individually, with a single <math>D(n, \delta)</math> for each separation distance, ultimately yielding an <math>\varepsilon</math> for each bin; or
#* for each bin individually, with a single <math>D(n, \delta)</math> for each separation distance, ultimately yielding an <math>\varepsilon</math> for each bin; or
#* by combining the data for all of the bins, with each separation distance having a <math>D_{ll}(n, \delta)</math> value for each bin, with the regression again ultimately yielding a single <math>\varepsilon</math> value for the data segment.
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Revision as of 15:53, 30 May 2022

How the regressions are set up depends on the choice of differencing scheme, these are explained below.

Forward-difference scheme regression

  1. If Dll(n,δ) was evaluated using a forward-difference scheme, the regression is done for the combined data from all bins in the selected range, hence the maximum number of Dll(n,δ) values for each separation distance will be the number of bins in the range less 1 for δ = 1, reducing by 1 for each increment in δ, with the regression ultimately yielding a single ε value for the data segment

Bin-centered difference scheme regression

  1. If Dll(n,δ) was evaluated using a bin-centered difference scheme, the regression is usually done for each bin individually, with a single D(n,δ) for each separation distance, ultimately yielding an ε for each bin; or



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