The library documents itself · Statistics & data-viz

stzCoeffExtractor

16 own methods · 0 forms written with extensions, listed under their method

the source: base/stats/stzCoeffExtractor.ring(opens in a new tab) · All classes · The area reference: Statistics & data-viz

Under each method, its extensions (Q CS XT Z ZZ IB W U): bold and ticked, it exists; struck, it does not. The extensions and what they mean

Examples: 0 come from the library's tests; 2 were composed from each method's signature and run for this page, on a fresh object, for example o1 = new stzCoeffExtractor(["price", "quantity"]). 14 methods have none yet. Examples run on 2026-10-03 12:54 inside the library at commit 0e72e2e2c.

Method

Explanation, as the source carries it

init

(no comment in the source: the name reads as a sentence) initno extension

setVariableNames

(no comment in the source: the name reads as a sentence) set variable namesno extension

setPerturbationDelta

(no comment in the source: the name reads as a sentence) set perturbation deltano extension

BraceEnd

(no comment in the source: the name reads as a sentence) brace endno extension

extract

Main method: Extract coefficientalso written: ExtractCoeff · ExtractCoefficientno extension

trySimpleExtraction

Fast path for simple linear expressionsno extension

normalizeExpression

(no comment in the source: the name reads as a sentence) normalize expressionno extension

isSimpleLinearExpression

(no comment in the source: the name reads as a sentence) is simple linear expressionno extension

extractLinearCoefficient

(no comment in the source: the name reads as a sentence) extract linear coefficientno extension

numericalDerivative

Numerical differentiation for complex expressionsno extension

createTestValues

(no comment in the source: the name reads as a sentence) create test values

composed example

o1 = new stzCoeffExtractor(["price", "quantity"])
? @@( o1.createTestValues() )
#--> [ [ "price", 10 ], [ "quantity", 10 ] ]

composed from the signature, run for this page

no extension

evaluateExpression

(no comment in the source: the name reads as a sentence) evaluate expressionno extension

roundCoefficient

(no comment in the source: the name reads as a sentence) round coefficientno extension

VarNames

(no comment in the source: the name reads as a sentence) var namesalso written: VariableNames

composed example

o1 = new stzCoeffExtractor(["price", "quantity"])
? @@( o1.VarNames() )
#--> [ "price", "quantity" ]

composed from the signature, run for this page

no extension

extractAllCoefficients

Batch extraction for all variablesno extension

validateExpression

Utility method to validate expressionno extension