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#' @keywords internal
#' @noRd
check_datamatrix <- function(A){
cond1 = (is.matrix(A)||(inherits(A, "Matrix")))
cond2 = (!any(is.infinite(A)))
cond3 = (!any(is.na(A)))
if (cond1&&cond2&&cond3){
return(TRUE)
} else {
return(FALSE)
}
}
#' @keywords internal
#' @noRd
check_lambda <- function(lambda){
if (length((lambda))==1){
if (lambda > 0){
if (!is.na(lambda)){
if (!is.infinite(lambda)){
return(TRUE)
}
}
}
}
return(FALSE)
}
#' @keywords internal
#' @noRd
check_niter <- function(niter){
if (length((niter))==1){
if (niter > 1){
if ((!is.na(niter))&&(!is.infinite(niter))){
if (abs(niter-round(niter))<sqrt(.Machine$double.eps)){
return(TRUE)
}
}
}
}
return(FALSE)
}
#' @keywords internal
#' @noRd
check_data_signal <- function(signal){
cond1 = ((is.vector(signal)) ||(is.matrix(signal)&&(min(nrow(signal),ncol(signal))==1)))
cond2 = all(!is.na(signal))
cond3 = all(!is.infinite(signal))
if (cond1&&cond2&&cond3){
return(TRUE)
} else {
return(FALSE)
}
}
# For Non-CIMG type case.
#' @keywords internal
#' @noRd
check_data_image <- function(image){
ldX = length(dim(image))
cond1 = (ldX==2)
cond2 = ((ldX==3)&&(dim(image)[3]==3))
if (cond1||cond2){
return(TRUE)
} else {
return(FALSE)
}
}
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