Description Usage Arguments Details Value Author(s) References Examples
discrete function, when variable is discrete.
1 | c_dscrt(y, z, l)
|
y |
The potential variables. It is a matrix with column of values of a variables. It should be standardized in this application. |
z |
The gold standard variable. It should be standardized. |
l |
Linear combination. A vector. |
Discrete function, when variable is discrete.
theta.h.p |
The estimate of theta when variable is discrete. |
var |
The variance of estimate of theta. |
Yu-chia Chang
Chang, YCI. Maximizing an ROC type measure via linear combination of markers when the gold reference is continuous. Statistics in Medicine 2012.
Obuchowski NA. An ROC-type measure of diagnostic accuracy when the gold standard is continuous-scale. Statistics in Medicine 2006; 25:481–493.
Obuchowski N. Estimating and comparing diagnostic tests accuracy when the gold standard is not binary. Statistics in Medicine 2005; 20:3261–3278.
Friedman JH, Popescu BE. Gradient directed regularization for linear regression and classification. Technical Report, Department of Statistics, Stanford University, 2004.
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