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#*******************************************************************************
#
# Particle Learning of Gaussian Processes
# Copyright (C) 2010, University of Cambridge
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
#
# Questions? Contact Robert B. Gramacy (bobby@statslab.cam.ac.uk)
#
#*******************************************************************************
## calc.eis:
##
## wrapper used to calculate the ECIs (expected conditional improvements)
## in C, and then calculate the IECI by a (weighted) mean
calc.eis <- function(tmat, fmin, w=NULL)
{
n <- nrow(tmat)
return(.C("calc_eis_R",
tmat = as.double(t(tmat)),
n = as.integer(n),
fmin = as.double(fmin),
bw = as.integer(length(w)),
w = as.double(w),
eis = double(n),
PACKAGE="plgp")$eis)
}
## calc.vars:
##
## wrapper used to calculate the predictive variances
calc.vars <- function(tmat, w=NULL)
{
if(is.null(w)) return(tmat$df*tmat$s2/(tmat$df-2))
else return(w*tmat$df*tmat$s2/(tmat$df-2))
}
## calc.iecis:
##
## wrapper used to calculate the ECIs (expected conditional improvements)
## in C, and then calculate the IECI by a (weighted) mean
calc.iecis <- function(ktKik, k, Xcand, X, Ki, Xref, d, g, s2p, phi,
badj, tm, tdf, fmin, w, verb)
{
m <- length(ktKik)
I <- nrow(Xcand)
return(.C("calc_iecis_R",
ktKik = as.double(ktKik),
m = as.integer(m),
k = as.double(k),
n = as.integer(nrow(k)),
Xcand = as.double(t(Xcand)),
I = as.integer(I),
col = as.integer(ncol(Xcand)),
X = as.double(t(X)),
Ki = as.double(Ki),
Xref = as.double(t(Xref)),
d = as.double(d),
dlen = as.integer(length(d)),
g = as.double(g),
s2p = as.double(s2p),
phi = as.double(phi),
badj = as.double(badj),
tm = as.double(tm),
tdf = as.integer(tdf),
fmin = as.double(fmin),
w = as.double(w),
w.null = as.integer(is.null(w)),
verb = as.integer(verb),
iecis = double(I),
PACKAGE="plgp")$iecis)
}
## calc.alcs:
##
## wrapper used to calculate the ALCs in C
calc.alcs <- function(k, Xcand, X, Ki, Xref, d, g, s2p, phi,
badj, tdf, w, verb)
{
m <- nrow(Xref)
I <- nrow(Xcand)
return(.C("calc_alcs_R",
m = as.integer(m),
k = as.double(k),
n = as.integer(nrow(k)),
Xcand = as.double(t(Xcand)),
I = as.integer(I),
col = as.integer(ncol(Xcand)),
X = as.double(t(X)),
Ki = as.double(Ki),
Xref = as.double(t(Xref)),
d = as.double(d),
dlen = as.integer(length(d)),
g = as.double(g),
s2p = as.double(s2p),
phi = as.double(phi),
badj = as.double(badj),
tdf = as.integer(tdf),
w = as.double(w),
w.null = as.integer(is.null(w)),
verb = as.integer(verb),
alcs = double(I),
PACKAGE="plgp")$alcs)
}
## calc.ieci:
##
## wrapper used to calculate the ECIs (expected conditional improvements)
## in C, and then calculate the IECI by a (weighted) mean
calc.ieci <- function(ktKik, k, x, X, Ki, Xref, d, g, s2p, phi,
badj, tm, tdf, fmin, w)
{
m <- length(ktKik)
return(.C("calc_ieci_R",
ktKik = as.double(ktKik),
m = as.integer(m),
k = as.double(k),
n = as.integer(nrow(k)),
x = as.double(x),
col = as.integer(length(x)),
X = as.double(t(X)),
Ki = as.double(Ki),
Xref = as.double(t(Xref)),
d = as.double(d),
dlen = as.integer(length(d)),
g = as.double(g),
s2p = as.double(s2p),
phi = as.double(phi),
badj = as.double(badj),
tm = as.double(tm),
tdf = as.integer(tdf),
fmin = as.double(fmin),
w = as.double(w),
ieci = double(1),
PACKAGE="plgp")$ieci)
}
## calc.ecis:
##
## wrapper used to calculate the ECIs (expected conditional improvements)
## in C
calc.ecis <- function(ktKik, k, x, X, Ki, Xref, d, g, s2p, phi,
badj, tm, tdf, fmin)
{
m <- length(ktKik)
## current version writes over ktKiK
return(.C("calc_ecis_R",
ktKik = as.double(ktKik),
m = as.integer(m),
k = as.double(k),
n = as.integer(nrow(k)),
x = as.double(x),
col = as.integer(length(x)),
X = as.double(t(X)),
Ki = as.double(Ki),
Xref = as.double(t(Xref)),
d = as.double(d),
dlen = as.integer(length(d)),
g = as.double(g),
s2p = as.double(s2p),
phi = as.double(phi),
badj = as.double(badj),
tm = as.double(tm),
tdf = as.integer(tdf),
fmin = as.double(fmin),
PACKAGE="plgp")$ktKik)
}
## calc.ktKik.x:
##
## no longer used; testing interface for "_R" C function
calc.ktKik.x <- function(ktKik, k, g, mui, kxy)
{
m <- length(ktKik)
## current version writes over ktKiK
r <- .C("calc_ktKikx_R",
ktKik = as.double(ktKik),
m = as.integer(m),
k = as.double(k),
n = as.integer(nrow(k)),
g = as.double(g),
mui = as.double(mui),
kxy = as.double(kxy),
PACKAGE="plgp")
return(r$ktKik)
}
## calc2.ktKik.x:
##
## no longer used; testing interface for "_R" C function
calc2.ktKik.x <- function(ktKik, k, x, X, Ki, Xref, d, g)
{
m <- length(ktKik)
## current version writes over ktKiK
r <- .C("calc2_ktKikx_R",
ktKik = as.double(ktKik),
m = as.integer(m),
k = as.double(k),
n = as.integer(nrow(k)),
x = as.double(x),
col = as.integer(length(x)),
X = as.double(t(X)),
Ki = as.double(Ki),
Xref = as.double(t(Xref)),
d = as.double(d),
dlen = as.integer(length(d)),
g = as.double(g),
PACKAGE="plgp")
return(r$ktKik)
}
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