plot.GIC.FuncompCGL: Plot the GIC curve produced by '"GIC.FuncompCGL"' object.

In Compack: Regression with Compositional Covariates

Description

Plot the GIC curve as a function of the lam values used for different degree of freedom k.

Usage

## S3 method for class 'GIC.FuncompCGL'
plot(x, xlab = c("log", "-log", "lambda"), k, ...)

Arguments

x	fitted "GIC.FuncompCGL" object.
xlab	what is on the X-axis, "log" plots against log(lambda) (default), "-log" against -log(lambda), and "lambda" against lambda.
k	value(s) of the degrees of freedom at which GIC cuvre(s) are plotted. if missing (default), GIC curve for k that is associated with "lam.min" (RED) stored on x is plotted. if it is an integer vector, specify what set of degrees of freedom to plot.
...	other graphical parameters.

Details

A GIC curve is produced.

Value

No return value. Side effect is a base R plot.

Author(s)

Zhe Sun and Kun Chen

References

Sun, Z., Xu, W., Cong, X., Li G. and Chen K. (2020) Log-contrast regression with functional compositional predictors: linking preterm infant's gut microbiome trajectories to neurobehavioral outcome, https://arxiv.org/abs/1808.02403 Annals of Applied Statistics

See Also

GIC.FuncompCGL and FuncompCGL, and predict and coef methods for "GIC.FuncompCGL" object.

Examples

df_beta = 5
p = 30
beta_C_true = matrix(0, nrow = p, ncol = df_beta)
beta_C_true[1, ] <- c(-0.5, -0.5, -0.5 , -1, -1)
beta_C_true[2, ] <- c(0.8, 0.8,  0.7,  0.6,  0.6)
beta_C_true[3, ] <- c(-0.8, -0.8 , 0.4 , 1 , 1)
beta_C_true[4, ] <- c(0.5, 0.5, -0.6  ,-0.6, -0.6)
Data <- Fcomp_Model(n = 50, p = p, m = 0, intercept = TRUE,
                    SNR = 4, sigma = 3, rho_X = 0.6, rho_T = 0,
                    df_beta = df_beta, n_T = 20, obs_spar = 1, theta.add = FALSE,
                    beta_C = as.vector(t(beta_C_true)))

k_list <- c(4,5)
GIC_m1 <-  GIC.FuncompCGL(y = Data$data$y, X = Data$data$Comp,
                          Zc = Data$data$Zc, intercept = Data$data$intercept,
                          k = k_list)
plot(GIC_m1)
plot(GIC_m1, xlab = "-log", k = k_list)

Compack documentation built on July 1, 2020, 10:26 p.m.