get.signs {BET}

Signs of Colors of all Points for all Interactions

Description

get.signs returns all the signs of colors for each point under all interactions up to depth d in marginal binary expansions for the tests BET and BETs.

Usage

get.signs(X, dep, unif.margin = FALSE)

Arguments

X

a matrix to be tested.

dep

depth of the marginal binary expansions.

unif.margin

logicals. If TRUE the data has been uniformed based on empirical cumulative distribution function. Default to be FALSE and the function uniforms the data.

Value

The result is a dataframe with n rows and 2^(p*dep) columns, where p is the number of columns of X and n is the number of rows of X. The values of 1 or -1 stand for the sign of color, while the marginal interactions return 0.

Examples

v <- runif(128, -pi, pi)
X1 <- cos(v) + 2.5 * rnorm(128, 0, 1/20)
X2 <- sin(v) + 2.5 * rnorm(128, 0, 1/20)
get.signs(cbind(X1, X2), 3)