Description Usage Arguments References
F(x)=f(x)+cP(x),the function just calculates F(x) when given x=x0.(f is smooth,P is a proper,convex,lower semicontinuous function,c is the tuning parameter,c>0,see more details in references)
1 | Fx(Y, X, lambda1, lambda2)
|
Y |
A n*m matrix. |
X |
A n*m matrix,the same size of Y. |
lambda1 |
A real number larger than 0,the first penalty used in the model,controls the overall copy number alteration amount of the target chromosome. |
lambda2 |
A real number larger than 0,the second penalty used in the model,controls the frequency of the alterations in the target region. |
Paul Tseng and Sangwoon Yun(2009).A Coordinate Gradient Descent Method for Nonsmooth Separable Minimization. Math,117,387-423.
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