How to apply distance formula on n-number of input data sets?

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Imtiaz nabi
Imtiaz nabi 2023-1-4
回答： Mandar 2023-2-3
Hi there,
I am trying to apply eucledian distance fromula on different data sets but I am confused about the logic.
Let me tell you about the situation first.
let's say I have 5 data sets as follow
data1 = randn(2,11); data2 = randn(2,11); data3= randn(2,11); data4 = randn(2,11); data5 = randn(2,11);
I want the distances to be calculated in the following manner:
({data1, data2},{data1, data3},{data1,data4},{data1,data5},{data2,data3}....... {datan,datan})
I don't know how to do it?
Basically I have around 2 million airfoil shapes and I wanted to calculate the distances between all of them.
I hope you are getting what I am saying!

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回答（1 个）

Mandar
Mandar 2023-2-3
The “pdist” function can be a potential workaround to the above issue. The function “pdist” provides the pairwise distance between pairs of observations. Refer the link below to know more about “pdist” function.
Link: https://in.mathworks.com/help/stats/pdist.html#d124e733161

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