# This was in fastcalcassist, but was never used.
# Moved to scratch.
CGGP_internal_calcusedforsupp <- function(CGGP, revc, y, theta, return_lS=FALSE) {
Q = max(CGGP$uo[1:CGGP$uoCOUNT,]) # Max level of all blocks
cholS = list(matrix(1,1,1),Q*CGGP$d) # To store choleskys
dMatdtheta = list(matrix(1,1,1),Q*CGGP$d)
if(return_lS){
lS = matrix(0, nrow = max(CGGP$uo[1:CGGP$uoCOUNT,]), ncol = CGGP$d) # Save log determinant of matrices
dlS = matrix(0, nrow = max(CGGP$uo[1:CGGP$uoCOUNT,]), ncol = CGGP$numpara*CGGP$d)
}
# Loop over each dimension
for (dimlcv in 1:CGGP$d) {
# Loop over depth of each dim
for (levellcv in 1:max(CGGP$uo[1:CGGP$uoCOUNT,dimlcv])) {
Xbrn = CGGP$xb[1:CGGP$sizest[levellcv]]
Xbrn = Xbrn[order(Xbrn)]
nv = length(Xbrn);
Sstuff = CGGP$CorrMat(Xbrn, Xbrn , theta[(dimlcv-1)*CGGP$numpara+1:CGGP$numpara],return_dCdtheta = TRUE)
S = Sstuff$C
cS = chol(S)
cholS[[(dimlcv-1)*Q+levellcv]] = cS+t(cS)-diag(diag(cS)) #store the symmetric version for C code
dMatdtheta[[(dimlcv-1)*Q+levellcv]] = -backsolve(cS,backsolve(cS,Sstuff$dCdtheta, transpose = TRUE))
for(paralcv in 1:CGGP$numpara){
dMatdtheta[[(dimlcv-1)*Q+levellcv]][1:nv,nv*(paralcv-1)+1:nv] = t(dMatdtheta[[(dimlcv-1)*Q+levellcv]][1:nv,nv*(paralcv-1)+1:nv])
}
if(return_lS){
lS[levellcv, dimlcv] = 2*sum(log(diag(cS)))
for(paralcv in 1:CGGP$numpara){
dlS[levellcv, CGGP$numpara*(dimlcv-1)+paralcv] = -sum(diag(dMatdtheta[[(dimlcv-1)*Q+levellcv]][1:nv,nv*(paralcv-1)+1:nv]))
}
}
}
}
if(is.matrix(y)){
numout = dim(y)[2]
sigma2 = rep(0,numout) # Predictive weight for each measured point
dsigma2 = matrix(0,nrow=CGGP$numpara*CGGP$d,ncol=numout) # Predictive weight for each measured point
gg = (1:CGGP$d-1)*Q
for (blocklcv in 1:CGGP$uoCOUNT) {
if(abs(CGGP$w[blocklcv])>0.5){
IS = CGGP$dit[blocklcv, 1:CGGP$gridsizet[blocklcv]];
VVV1=unlist(cholS[gg+CGGP$uo[blocklcv,]])
VVV2=unlist(dMatdtheta[gg+CGGP$uo[blocklcv,]])
VVV3=CGGP$gridsizest[blocklcv,]
for(outdimlcv in 1:numout){
B2 = y[IS,outdimlcv]
B0 = revc[IS,outdimlcv]
B = (CGGP$w[blocklcv])*B0#/dim(y)[1]
dB = rcpp_gkronDBS(VVV1,VVV2,B,VVV3)
dsigma2[,outdimlcv] = dsigma2[,outdimlcv] + as.vector(dB%*%B2)
sigma2[outdimlcv] = sigma2[outdimlcv] + sum(B2*B)
}
}
}
out <- list(sigma2=sigma2,
dsigma2=dsigma2)
if (return_lS) {
out$lS <- lS
out$dlS <- dlS
}
}else{
sigma2 = 0 # Predictive weight for each measured point
dsigma2 = rep(0,nrow=CGGP$d) # Predictive weight for each measured point
gg = (1:CGGP$d-1)*Q
for (blocklcv in 1:CGGP$uoCOUNT) {
if(abs(CGGP$w[blocklcv])>0.5){
IS = CGGP$dit[blocklcv, 1:CGGP$gridsizet[blocklcv]];
B0 = revc[IS]
B2 = y[IS]
B = (CGGP$w[blocklcv])*B0#/length(y)
dB = rcpp_gkronDBS(unlist(cholS[gg+CGGP$uo[blocklcv,]]),unlist(dMatdtheta[gg+CGGP$uo[blocklcv,]]), B, CGGP$gridsizest[blocklcv,])
dsigma2 = dsigma2 +t(B2)%*%t(dB)
sigma2 = sigma2 + t(B2)%*%B
}
}
out <- list(sigma2=sigma2,
dsigma2=dsigma2)
if (return_lS) {
out$lS <- lS
out$dlS <- dlS
}
}
out
}
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