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Equation 12 · Part 1 · How to Evaluate Codex Beyond SWE-bench and Vendor Scores

Symbol r

rr
rr

What this part means

r is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.

Its job in the formula

r is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.

The passage around this formula

where r indexes repositories and xirx_{ir} task characteristics. The estimate can then expose between-repository variance rather than hiding it inside a global mean. Bootstrap intervals should resample at relevant task-family or repository levels when generalization across those units is the target.

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Learn the underlying idea

A variable is a named place for a value. Its letter is a local label: x can mean position in one formula and a data point in another.

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See this notation across published equations →

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