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MByk
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How Jackknife sampling works?

MByk
さんによって質問されました 2017 年 8 月 17 日
最新アクティビティ the cyclist
さんによって 回答されました 2017 年 8 月 18 日
I am trying to understand sampling techniques but I am stuck on jacknife. Can somebody explain how jacknife sampling works? How can I see the samples? or this is completely different than I thought? Thanks for the help.
load ('wine.txt');
format shortG;
X = wine(:,(1:13));
Y = wine(:,14);
% [~,bootsam] = bootstrp(2,[],X,Y);
% [s,idx] = datasample(wine,100,'Replace',false);
js = jackknife(@corr,X,Y);

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the cyclist
Answer by the cyclist
on 18 Aug 2017
 Accepted Answer

Here is a quote from that page that summarizes the technique succinctly:
For a sample with n points, the jackknife computes sample statistics on n separate samples of size n-1. Each sample is the original data with a single observation omitted.

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