PAmeasures
Prediction and Accuracy Measures for Nonlinear Models and for Right-Censored Time-to-Event Data
Description
We propose a pair of summary measures for the predictive power of a prediction function based on a regression model. The regression model can be linear or nonlinear, parametric, semi-parametric, or nonparametric, and correctly specified or mis-specified. The first measure, R-squared, is an extension of the classical R-squared statistic for a linear model, quantifying the prediction function's ability to capture the variability of the response. The second measure, L-squared, quantifies the prediction function's bias for predicting the mean regression function. When used together, they give a complete summary of the predictive power of a prediction function. Please refer to Gang Li and Xiaoyan Wang (2016) <arXiv:1611.03063> for more details.
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CRAN incoming feasibility
Maintainer: ‘Xiaoyan Wang<xywang@ucla.edu>’
No Authors@R field in DESCRIPTION.
Please add one, modifying
Authors@R: c(person(given = "Xiaoyan",
family = "Wang",
role = c("aut", "cre"),
email = "xywang@ucla.edu"),
person(given = "Gang",
family = "Li",
role = "aut"))
as necessary.
The Description field contains
to Gang Li and Xiaoyan Wang (2016) <arXiv:1611.03063> for more details.
Please refer to arXiv e-prints via their arXiv DOI <doi:10.48550/arXiv.YYMM.NNNNN>.
CRAN incoming feasibility
Maintainer: ‘Xiaoyan Wang<xywang@ucla.edu>’
No Authors@R field in DESCRIPTION.
Please add one, modifying
Authors@R: c(person(given = "Xiaoyan",
family = "Wang",
role = c("aut", "cre"),
email = "xywang@ucla.edu"),
person(given = "Gang",
family = "Li",
role = "aut"))
as necessary.
The Description field contains
to Gang Li and Xiaoyan Wang (2016) <arXiv:1611.03063> for more details.
Please refer to arXiv e-prints via their arXiv DOI <doi:10.48550/arXiv.YYMM.NNNNN>.
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NOTE 12 OK · 2 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Mar 10, 2026
CRAN incoming feasibility
Maintainer: ‘Xiaoyan Wang<xywang@ucla.edu>’
No Authors@R field in DESCRIPTION.
Please add one, modifying
Authors@R: c(person(given = "Xiaoyan",
family = "Wang",
role = c("aut", "cre"),
...[truncated]...
y = "Li",
role = "aut"))
as necessary.
The Description field contains
to Gang Li and Xiaoyan Wang (2016) <arXiv:1611.03063> for more details.
Please refer to arXiv e-prints via their arXiv DOI <doi:10.48550/arXiv.YYMM.NNNNN>.
CRAN incoming feasibility
Maintainer: ‘Xiaoyan Wang<xywang@ucla.edu>’
No Authors@R field in DESCRIPTION.
Please add one, modifying
Authors@R: c(person(given = "Xiaoyan",
family = "Wang",
role = c("aut", "cre"),
...[truncated]...
y = "Li",
role = "aut"))
as necessary.
The Description field contains
to Gang Li and Xiaoyan Wang (2016) <arXiv:1611.03063> for more details.
Please refer to arXiv e-prints via their arXiv DOI <doi:10.48550/arXiv.YYMM.NNNNN>.