RegularizedSCA (version 0.5.0)

plot.CVsparseSCA: Ploting Cross-validation results

Description

A plot of PRESS +/- 1 standard error against Lasso and Group Lasso tuning parameters, with the vertical dotted black line indicating the lowest PRESS+1SE. Note that on the x axis (abscissa) are Lasso tuning parameter values. The Group Lasso tuning parameter values are shown on the top of the graph, and the values shown are index numbers: G1, for example, indicates the first value in the GLassoSequence. In case both the Lasso sequence and the Group Lasso sequence contain more than 2 elements, there will be an extra plot, which is the number of non-zero component loadings against Lasso and Group Lasso tuning parameters. In this case plot is a list of two plots. To find their corresponding values, please make use of Lasso_values and Glasso_values. The vertical red dashed lines indicate a proper region for Lasso tuning parameters given a certain Group Lasso tuning parameter. When there is only one vertical red dashed line, a proper region for Lasso tuning parameters is not available: the red dashed line indicates the Lasso tuning parameter leading to the PRESS that is closest to the smallest PRESS+1SE.

Usage

# S3 method for CVsparseSCA
plot(x, ...)

Arguments

x

A object for plot.

...

Argument to be passed to or from other methods.

Examples

# NOT RUN {
## S3 method for class 'CVsparseSCA'
plot(x)
# }
# NOT RUN {
# }