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| 29 |
\value{
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29 |
\value{
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| 30 |
For \code{poly} with a single vector argument:\cr
|
30 |
For \code{poly} with a single vector argument:\cr
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| 31 |
A matrix with rows corresponding to points in \code{x} and columns
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31 |
A matrix with rows corresponding to points in \code{x} and columns
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| 32 |
corresponding to the degree, with attributes \code{"degree"} specifying
|
32 |
corresponding to the degree, with attributes \code{"degree"} specifying
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| 33 |
the degrees of the columns and \code{"coefs"} which contains the
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33 |
the degrees of the columns and \code{"coefs"} which contains the
|
| 34 |
centring and normalization constants used in constructing the
|
34 |
centering and normalization constants used in constructing the
|
| 35 |
orthogonal polynomials. The matrix is given class
|
35 |
orthogonal polynomials. The matrix is given class
|
| 36 |
\code{c("poly", "matrix")} as from \R 1.5.0.
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36 |
\code{c("poly", "matrix")} as from \R 1.5.0.
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| 37 |
|
37 |
|
| 38 |
Other cases of \code{poly} and \code{polym}, and \code{predict.poly}:
|
38 |
Other cases of \code{poly} and \code{polym}, and \code{predict.poly}:
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| 39 |
a matrix.
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39 |
a matrix.
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| 43 |
\code{\dots}), an unnamed second argument of length 1 will be
|
43 |
\code{\dots}), an unnamed second argument of length 1 will be
|
| 44 |
interpreted as the degree.
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interpreted as the degree.
|
| 45 |
|
45 |
|
| 46 |
The orthogonal polynomial is summarized by the coefficients, which can
|
46 |
The orthogonal polynomial is summarized by the coefficients, which can
|
| 47 |
be used to evaluate it via the three-term recursion given in Kennedy
|
47 |
be used to evaluate it via the three-term recursion given in Kennedy
|
| 48 |
\& Gentle (1980, pp. 343-4), and use in the \dQuote{predict} part of
|
48 |
\& Gentle (1980, pp. 343-4), and used in the \dQuote{predict} part of
|
| 49 |
the code.
|
49 |
the code.
|
| 50 |
}
|
50 |
}
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| 51 |
\note{
|
51 |
\note{
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| 52 |
This routine is intended for statistical purposes such as
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52 |
This routine is intended for statistical purposes such as
|
| 53 |
\code{contr.poly}: it does not attempt to orthogonalize to
|
53 |
\code{contr.poly}: it does not attempt to orthogonalize to
|
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