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[RFC]: Canberra distance between two strided arrays #831

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@Planeshifter

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@Planeshifter

Description

This RFC proposes adding a function to calculate the Canberra distance between two strided arrays.

Package: @stdlib/math/strided/distances/canberra

The function should have the following signature canberra( N, x, strideX, y, strideY ).

The Canberra distance is a measure of dissimilarity between two samples in a data set.

The Canberra distance between two elements is as follows:

(abs(x[i] - y[i]) / (abs(x[i]) + abs(y[i]))

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  • The issue name begins with RFC:.

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    CIssue involves or relates to C.FeatureIssue or pull request for adding a new feature.JavaScriptIssue involves or relates to JavaScript.MathIssue or pull request specific to math functionality.Native AddonsIssue involves or relates to Node.js native add-ons.RFCRequest for comments. Feature requests and proposed changes.difficulty: 3Likely to be challenging but manageable.priority: NormalNormal priority concern or feature request.status: BlockedIssue or pull request which is currently blocked.

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