What is Bootstrap?

What is Bootstrap

Bootstrap test(Bootstrap)

Replacement sampling statistical method. By repeatedly sampling the data set multiple times, multiple evolutionary trees are constructed to test the credibility of the branches of the evolutionary tree you calculated.

To put it simply, the positions of the sequence are rearranged, and the rearranged sequence is used to construct a tree using the same method. If the branches of the original tree also appear in the rearranged tree, Just give this branch one point, and if it doesn't appear, give it 0 points. In this way, after your given 100-1000 times of rearrangement and scoring, each branch will get a score, and the computer will convert it for you. into bootstrap value.

There are many combinations of rearranged sequences. The larger the value, the higher the credibility of the branch. Generally, when the bootstrap value is greater than 70%, the existence of the evolutionary branch is considered to be supported by bootstrap detection. It is best to use different tree-building methods and models according to the data situation in order to obtain more reliable results.

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