coef_ordered {multiview}

Extract an ordered list of standardized coefficients from a multiview or cv.multiview object

Description

This function extracts a ranked list of coefficients after the coefficients are standardized by the standard deviation of the corresponding features. The ranking is based on the magnitude of the standardized coefficients. It also outputs the data view to which each coefficient belongs.

Usage

coef_ordered(object, ...)

Arguments

object

Fitted "multiview" or "cv.multiview" object. coefficients are required.

...

This is the mechanism for passing arguments like ⁠x=⁠ when exact=TRUE; see exact argument.

Details

The output table shows from left to right the data view each coefficient comes from, the column index of the feature in the corresponding data view, the coefficient after being standardized by the standard deviation of the corresponding feature, and the original fitted coefficient.

Value

data frame of consisting of view name, view column, coefficient and standardized coefficient ordered by rank of standardized coefficient.

Examples

# Gaussian
x = matrix(rnorm(100 * 20), 100, 20)
z = matrix(rnorm(100 * 10), 100, 10)
y = rnorm(100)
fit1 = multiview(list(x=x,z=z), y, rho = 0)
coef_ordered(fit1, s=0.1)

# Binomial
by = sample(c(0,1), 100, replace = TRUE)
fit2 = multiview(list(x=x,z=z), by, family = binomial(), rho=0.5)
coef_ordered(fit2, s=0.1)

# Poisson
py = matrix(rpois(100, exp(y))) 
fit3 = multiview(list(x=x,z=z), py, family = poisson(), rho=0.5)
coef_ordered(fit3, s=0.1)