I am aware of a function called poly.calc from library polynom. It seems to return a string that can't be used to computing directly. Is there another similar function or is there other work around?
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Clemsang
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Preston Lui
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Hi Preston. What is it you wish to know? – Nov 07 '19 at 15:22
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Functions to generate polynomials in several standard ways poly.calc (alias poly.from.values) computes the Lagrange interpolating polynomial. poly.from.zeros (alias poly.from.roots) computes the monic polynomial with specified zeros. poly.orth calculates polynomials orthogonal over a discrete set of x−values, as done numerically by the standard R function poly. Ref https://www.rdocumentation.org/packages/PolynomF/versions/1.0-2/topics/poly.calc – Nov 07 '19 at 15:24
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It's easier to help you if you include a simple [reproducible example](https://stackoverflow.com/questions/5963269/how-to-make-a-great-r-reproducible-example) with sample input and desired output that can be used to test and verify possible solutions. – MrFlick Nov 07 '19 at 16:34