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getCTechSTM1u <- function(){
#getCTechSTM1u <- function(), output: CTechST
#this function sets the options for computing all the directional (regression) quantiles by means of the main program (= compContourM1u)
CTechST <- list()
#universal activity indicators
CTechST$ReportI <- 0 #1/0 ... if some information (such as the progress of computation) is displayed on the screen (1) or not (0)
#- (1) may be useful for large problems with M > 2
CTechST$OutSaveI <- 0 #1/0 ... if the detailed output is stored in file(s) on the disk (1) or not (0)
#- (0) might be useful for novice users, for processing large/high-dimensional data sets or for simulation studies
CTechST$D2SpecI <- 1 #1/0 ... if, for M = 2, the cones are visited counter-clockwise (1) or as in any other dimension (0)
#- (1) leads to a more precise computation than (0)
CTechST$BriefOutputI <- 1 #1/0 ... if the brief (1) or verbose (0) version of the output is provided by the program
#- (1) leads to the (file) output rows of length (1+1+M+M+P+1):
# c(ConeID, Nu, UVec, BDVec, ADVec, LambdaD)
#- (0) leads to the (file) output rows of length (1+1+M+M+P+1+(P+M-1)*M+(P+M-1)):
# c(ConeID, Nu, UVec, BDVec, ADVec, LambdaD, vec(VUMat), IZ)
# where
# ConeID .. the number/order of the cone investigated
# Nu ... the number of negative residuals
# UVec ... an L2 or max normalized vector of the cone investigated (depending on CTechST$D2SpecI)
# BDVec, ADVec, LambdaD ... the b-vector, a-vector and Lambda (from the article) multiplied by t(UVec) = BDVec*UVec,
# i.e. the constant denominators only
# VUMat ... the matrix for computing the multipliers associated with zero residuals, MuR0Vec = (VUMat%*%UVec)/t(UVec)
# IZ ... the indices of observations with the zero residuals (i.e. on the tau- and UVec-quantile hyperplane)
#relevant only if (M > 2) or !CTechST$D2SpecI
CTechST$CubRegWiseI <- 1 #1/0 ... if the directional space is divided into orthants investigated separately (1) or not (0)
#- (1) splits the problem to 2^M smaller ones but generates some artificial cones with a facet in the orthant borders
CTechST$ArchAllFI <- 1 #1/0 ... if all the past cone facet identifiers (1) or only those from the last few layers (0) are stored
#- (1) makes the computation more likely to terminate successfully than (0)
#- (0) is faster and less memory demanding than (1)
#- if M > 3 then CTechST$ArchAllFI == 1 is set by the program
#user-defined strings (not checked for errors by the main program compContourM1u!)
CTechST$OutFilePrefS <- 'DQOutputM1_' # ... the prefix of possible output files
CTechST$getCharST <- getCharSTM1u # ... the user-defined output function
return(CTechST)
}
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