hat.ssr: Extract the Hat Matrix from a ssr Object
In assist: A Suite of R Functions Implementing Spline Smoothing Techniques
hat.ssr R Documentation
Extract the Hat Matrix from a ssr Object
Description
Calculate the hat matrix for a ssr object.
Usage
hat.ssr(ssr.obj)
Arguments
ssr.obj
a fitted ssr object.
Details
The hat matrix may be used for diagnosis. Note that the full name hat.ssr shoud be used since the function hat already exist.
Value
returned is the hat (influence, smoother) matrix.
Author(s)
Chunlei Ke chunlei_ke@yahoo.com and Yuedong Wang yuedong@pstat.ucsb.edu
References
Eubank, R. L. (1984). The Hat Matrix for Smoothing Splines. Statistics and Probability Letters, 2:9-14.
Eubank, R. L. (1985). Diagnostics for Smoothing Splines. Journal of the Royal Statistical Society B. 47: 332-341.
Wahba, G. (1990). Spline Models for Observational Data. SIAM, Vol. 59.
See Also
ssr
Examples
## Not run: library(MASS)
## Not run: fit1<- ssr(accel~times, data=mcycle, scale=T, rk=cubic(times))
## Not run: h <- hat.ssr(fit1)
assist documentation built on Aug. 22, 2023, 9:12 a.m.
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| hat.ssr | R Documentation |
Extract the Hat Matrix from a ssr Object
Description
Calculate the hat matrix for a ssr object.
Usage
hat.ssr(ssr.obj)
Arguments
ssr.obj |
a fitted ssr object. |
Details
The hat matrix may be used for diagnosis. Note that the full name hat.ssr shoud be used since the function hat already exist.
Value
returned is the hat (influence, smoother) matrix.
Author(s)
Chunlei Ke chunlei_ke@yahoo.com and Yuedong Wang yuedong@pstat.ucsb.edu
References
Eubank, R. L. (1984). The Hat Matrix for Smoothing Splines. Statistics and Probability Letters, 2:9-14.
Eubank, R. L. (1985). Diagnostics for Smoothing Splines. Journal of the Royal Statistical Society B. 47: 332-341.
Wahba, G. (1990). Spline Models for Observational Data. SIAM, Vol. 59.
See Also
ssr
Examples
## Not run: library(MASS)
## Not run: fit1<- ssr(accel~times, data=mcycle, scale=T, rk=cubic(times))
## Not run: h <- hat.ssr(fit1)
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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